{"id":39079,"date":"2025-11-27T10:31:52","date_gmt":"2025-11-27T10:31:52","guid":{"rendered":"https:\/\/www.fs-pcba.com\/?p=39079"},"modified":"2025-11-27T10:31:52","modified_gmt":"2025-11-27T10:31:52","slug":"wire-bonding-failure-analysis","status":"publish","type":"post","link":"https:\/\/www.fs-pcba.com\/pt\/wire-bonding-failure-analysis\/","title":{"rendered":"An\u00e1lise de falhas em liga\u00e7\u00f5es por fio: compostos intermet\u00e1licos, corros\u00e3o e fadiga em diversos sistemas met\u00e1licos."},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"39079\" class=\"elementor elementor-39079\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-ad4e089 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"ad4e089\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-2c6778c\" data-id=\"2c6778c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-e6edef4 elementor-toc--minimized-on-tablet elementor-widget elementor-widget-table-of-contents\" data-id=\"e6edef4\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;exclude_headings_by_selector&quot;:[],&quot;no_headings_message&quot;:&quot;No headings were found on this page.&quot;,&quot;headings_by_tags&quot;:[&quot;h2&quot;,&quot;h3&quot;,&quot;h4&quot;,&quot;h5&quot;,&quot;h6&quot;],&quot;marker_view&quot;:&quot;numbers&quot;,&quot;minimize_box&quot;:&quot;yes&quot;,&quot;minimized_on&quot;:&quot;tablet&quot;,&quot;hierarchical_view&quot;:&quot;yes&quot;,&quot;min_height&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;min_height_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"table-of-contents.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__header\">\n\t\t\t\t\t\t<h4 class=\"elementor-toc__header-title\">\n\t\t\t\tTable of Contents\t\t\t<\/h4>\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--expand\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__e6edef4\" aria-expanded=\"true\" aria-label=\"Open table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-down\"><\/i><\/div>\n\t\t\t\t<div class=\"elementor-toc__toggle-button elementor-toc__toggle-button--collapse\" role=\"button\" tabindex=\"0\" aria-controls=\"elementor-toc__e6edef4\" aria-expanded=\"true\" aria-label=\"Close table of contents\"><i aria-hidden=\"true\" class=\"fas fa-chevron-up\"><\/i><\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<div id=\"elementor-toc__e6edef4\" class=\"elementor-toc__body\">\n\t\t\t<div class=\"elementor-toc__spinner-container\">\n\t\t\t\t<i class=\"elementor-toc__spinner eicon-animation-spin eicon-loading\" aria-hidden=\"true\"><\/i>\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-d405a4d\" data-id=\"d405a4d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-db41154 elementor-widget elementor-widget-spacer\" data-id=\"db41154\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-33cc032 elementor-widget elementor-widget-heading\" data-id=\"33cc032\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Wire bonding Failure Analysis: intermetallics, corrosion, and fatigue in varied metal systems<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7c514bf elementor-widget elementor-widget-spacer\" data-id=\"7c514bf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-4079963 elementor-widget elementor-widget-shortcode\" data-id=\"4079963\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">    <style>\n        .vertical-divider {\n            height: 7px; \/* \u8bbe\u7f6e\u5206\u5272\u7ebf\u9ad8\u5ea6 *\/\n            background:#006FAD;\n        }\n    <\/style>\n<div class=\"vertical-divider\"><\/div>    <\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8aea125 elementor-widget elementor-widget-text-editor\" data-id=\"8aea125\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-LF59dEOKloxpbJxeZMEciEnonnh\">Consider a semiconductor chip that passes factory tests with flying colors. It is used in an electric car&#8217;s battery management system, working perfectly for a considerable period of time. However, occasional errors begin to manifest, leading to a total failure of the system. The problem? It is not with the intricate semiconductor design but rather due to a few wire bonds that have failed due to degradation.<\/div><div class=\"ace-line ace-line old-record-id-UBmDdQ6CuoXf7LxueNNcEWMInuf\">\u00a0<\/div><div class=\"ace-line ace-line old-record-id-HTaMdbsp5obKCxxFAqKcfpUBnNg\"><strong>Failures in wire bonding<\/strong> can be insidious in nature. Sometimes, the failure may not be detected during the initial testing phase, but the failure can occur catastrophically with massive recalls, especially in industries where the failure is related to safety, such as the <u><a href=\"https:\/\/www.fs-pcba.com\/automotive-pcb\/\" data-lark-is-custom=\"true\">automotive industry<\/a><\/u>, space exploration, and <u><a href=\"https:\/\/www.fs-pcba.com\/medical-pcb\/\" data-lark-is-custom=\"true\">medical equipment<\/a><\/u>. Understanding the root causes of these failures is not just an academic exercise; it&#8217;s a crucial discipline for ensuring product longevity and reliability.<\/div><div class=\"ace-line ace-line old-record-id-Y2XEd2YFNoOgjzxt5TJcj75tnMb\">\u00a0<\/div><div class=\"ace-line ace-line old-record-id-PIGXdoqxYoOvARxnNzFcQyWHnWh\">This paper progresses from the basics and introduces a systematic approach for understanding, analyzing, and preventing <strong>typical wire bonding failure<\/strong> modes and mechanisms.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9099812 elementor-widget elementor-widget-heading\" data-id=\"9099812\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Intermetallic Compounds (IMCs) <\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-557ba5f elementor-widget elementor-widget-text-editor\" data-id=\"557ba5f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-ROj2dzQg5oGywbxNgl1cTN7anQy\">Intermetallic compounds refer to the crystalline material produced at the interface of two different metals during the bonding stage and later exposed to heat. Intermetallic compounds created by two different metals, such as <strong>Au-Al and Cu-Al<\/strong>, used in wire bonding, have a substantial effect on reliability. Gold and aluminum will increase the strength of the wire bonds formed with the <u><a href=\"https:\/\/www.fs-pcba.com\/what-are-pcb-boards-made-of\/\" data-lark-is-custom=\"true\">substrate material<\/a><\/u>. However, temperature and other parameters can create an intermetallic compound beyond the permissible range, giving rise to a decrease in performance, especially when the temperature is high.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f80e514 elementor-widget elementor-widget-text-editor\" data-id=\"f80e514\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h3 class=\"heading-3 ace-line old-record-id-GauedC33OoySP3x8BkOcS4G6n3e\"><strong>3 Key Failure Mechanisms of IMC<\/strong><\/h3><h4 class=\"heading-4 ace-line old-record-id-MEsYdGRwmoNrGXxttKZc9tvSngc\">Embrittlement and Fracture<\/h4><div class=\"ace-line ace-line old-record-id-ZYZrd3tJYomWf3xesQfccdDGnDf\">The IMCs AuAl\u2082, Au\u2085Al\u2082, and Au\u2084Al exhibit natural hardness and brittleness characteristics. They do not possess ductility properties and cannot withstand stresses generated by the difference in the expansion coefficients of the materials, and so micro-cracks begin to form within the IMC interface area due to these brittle characteristics. [1]<\/div><h4 class=\"heading-4 ace-line old-record-id-S2ojdJR0foEGaDxog5FcVcrfnrh\">Kirkendall Voiding<\/h4><div class=\"ace-line ace-line old-record-id-LsO7dyq5BoYzNexK0kpc4hi8nPf\">This is a subtler and potentially more hazardous situation. Because of a substantial difference in the diffusion rates of the two metals (for example, gold has a greater diffusion rate in aluminum than aluminum has), a buildup of vacancies occurs on the surface of the faster-diffusing metal. The vacancies develop into voids within the bond interface, as described below.<\/div><div>\u00a0<\/div><div class=\"ace-line ace-line old-record-id-KI64deSt2omDGwxCzwbcdyRqnpf\">The increased resistance generated by a reduction in contact area can lead directly to an open circuit with little evidence of other functional degradation, because the path itself is so elevated in resistance due to those voids.[2]<\/div><h4 class=\"heading-4 ace-line old-record-id-HYpgdx3tsoXAqjx9NlYcQHTgnuX\">The &#8220;<strong>Purple Plague<\/strong>&#8221; Revisited<\/h4><div class=\"ace-line ace-line old-record-id-JVRqdf5GTo71isxAc4CceeJfnWp\">The \u201cpurple plague\u201d is a specific reference to the purple color of the compound AuAl\u2082. Although this is a strikingly distinctive color, the problem with the compound is actually its brittle characteristics and its relation to Kirkendall voids. It remains a classic case study in material incompatibility.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ea2cfef elementor-widget elementor-widget-text-editor\" data-id=\"ea2cfef\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h3 class=\"heading-3 ace-line old-record-id-NmC7dl8SmoeCtxxcjU9cbqkJnxI\"><strong>Factors Accelerating IMC Growth:<\/strong><\/h3><div class=\"ace-line ace-line old-record-id-NthtdqGQbo75egxJYDocJM5AnJg\">The growth of IMCs is a diffusion-controlled process and is mainly temperature and time-dependent according to the Arrhenius equation. The most important factors influencing the growth process are:<\/div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-Owc0deeProU3pjxcpqPc97Dwn4c\" data-list=\"bullet\"><div><strong>Temperature:<\/strong> This is the most important factor of all. Any temperature slightly above the design specification can create an exponential growth increase for IMCs.<\/div><\/li><li class=\"ace-line ace-line old-record-id-KqTldIWYnoVuurxsOR3cdu3onZT\" data-list=\"bullet\"><div><strong>Time:<\/strong> Long-term exposure to high temperature conditions, although these can be moderate.<\/div><\/li><li class=\"ace-line ace-line old-record-id-ZIBBdR6SCoaiPrx6ff9cdIvpnNd\" data-list=\"bullet\"><div><strong>Current Density:<\/strong> High currents can trigger electromigration that contributes significantly to the diffusion of atoms and the formation of voids.<\/div><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d9290fc elementor-widget elementor-widget-heading\" data-id=\"d9290fc\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Corrosion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-56bbdae elementor-widget elementor-widget-text-editor\" data-id=\"56bbdae\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-HcQYd1iIUo9WkRx2Hlgc3ssbnaf\">Corrosion is the gradual destruction of metal because of the chemical reaction of the surroundings with the metal. Corrosion due to wire bonding may cause a lack of strength within the bond interface, increased electrical resistance, and open circuits. Some of the factors influencing corrosion include:<\/div><div>\u00a0<\/div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-TRx5dy7t5oyZnFxGfdscX63sndb\" data-list=\"bullet\"><div><strong>Environmental Conditions:<\/strong> Temperature, humidity, and the presence of corrosive gases (H\u2082S, SO\u2082, Cl\u2082).<\/div><\/li><li class=\"ace-line ace-line old-record-id-NyOidJ1jqoSIHxxxYpocnVEFnRg\" data-list=\"bullet\"><div><strong>Contaminants:<\/strong> Ionic residues of manufacturing processes such as Chlorides and Bromides.<\/div><\/li><li class=\"ace-line ace-line old-record-id-JoIzd7OuyokQwRxT3PMcBUOlnhf\" data-list=\"bullet\"><div><strong>Electrical Bias:<\/strong> Applied voltage can induce electrochemical migration and corrosion reactions.<\/div><\/li><li class=\"ace-line ace-line old-record-id-I560dKRD5ocZOfxJzh5cfv2Qn8c\" data-list=\"bullet\"><div><strong>Material Properties:<\/strong> The inherent corrosion-resistant qualities of the wire and pad materials being used.<\/div><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-31d42d4 elementor-widget elementor-widget-text-editor\" data-id=\"31d42d4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-HcQYd1iIUo9WkRx2Hlgc3ssbnaf\"><div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h3 class=\"heading-3 ace-line old-record-id-USkrdsDu6oPhITxDT6ccEAwHnSf\"><strong>Types of Corrosion in Wire Bonds<\/strong><\/h3><div class=\"ace-line ace-line old-record-id-JzIldta2not8mZxZdcNcbzBgncc\">Understanding types of corrosion is imperative for semiconductor packaging engineers with regard to failure analysis and design for reliability (DFR).<\/div><div class=\"ace-line ace-line old-record-id-A1KQdk8AMoYHLbx5UVuckCG5nNb\">This is a table showing the six most significant corrosion mechanisms in wire bonding with their respective causes and effects:<\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-dac5f94 elementor-widget elementor-widget-image\" data-id=\"dac5f94\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"4797\" height=\"1155\" src=\"https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/six-key-corrosion-mechanisms-relevant-to-wire-bonding.png\" class=\"attachment-full size-full wp-image-39255\" alt=\"six key corrosion mechanisms relevant to wire bonding\" srcset=\"https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/six-key-corrosion-mechanisms-relevant-to-wire-bonding.png 4797w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/six-key-corrosion-mechanisms-relevant-to-wire-bonding-300x72.png 300w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/six-key-corrosion-mechanisms-relevant-to-wire-bonding-1024x247.png 1024w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/six-key-corrosion-mechanisms-relevant-to-wire-bonding-768x185.png 768w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/six-key-corrosion-mechanisms-relevant-to-wire-bonding-1536x370.png 1536w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/six-key-corrosion-mechanisms-relevant-to-wire-bonding-2048x493.png 2048w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/six-key-corrosion-mechanisms-relevant-to-wire-bonding-18x4.png 18w\" sizes=\"(max-width: 4797px) 100vw, 4797px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2dce33e elementor-widget elementor-widget-text-editor\" data-id=\"2dce33e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h4 class=\"heading-4 ace-line old-record-id-JDEzdTyp6ouosUxynQzcuHnnnlh\">Galvanic (Electrochemical) Corrosion:<\/h4><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-UGIwd2ksMoWOvHxhrQncPpwMncf\" data-list=\"bullet\"><div><strong>Cause:<\/strong> This happens when two different metals, such as Aluminum and Gold, come into contact with each other in the presence of an electrolyte solution, such as moisture with ionic contamination. The metal with lower nobility will corrode.<\/div><\/li><li class=\"ace-line ace-line old-record-id-NcULdTSZ0oZiM3x4Wneca6c1nwe\" data-list=\"bullet\"><div><strong>Wire Bond Failure Mode:<\/strong> For a gold wire bonded onto an aluminum pad, the aluminum pad sacrificially corrodes, creating a non-conductive oxide layer. This leads to a rise in the resistance value with a consequent failure in the bond. This is a significant problem with aluminum pads and gold wires.<\/div><\/li><\/ul><h4 class=\"heading-4 ace-line old-record-id-C5tGdQesgoZ4EPxDTL6ceQ8tnaf\">Pitting Corrosion:<\/h4><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-SWhhdBJRXovemVxQlnWctTGIn5f\" data-list=\"bullet\"><div><strong>Cause:<\/strong> A localized attack which is triggered by a partial loss of the oxide film on a metal surface, which is commonly caused by chloride ions.<\/div><\/li><li class=\"ace-line ace-line old-record-id-LjHgdcbxQozpdYxZY4AcwoVInhd\" data-list=\"bullet\"><div><strong>Wire Bond Failure Mode:<\/strong> Copper wire bonds will fail due to the potential for a single type of chloride contaminant to create a pit on the wire, creating a stress riser from which a crack can be generated, leading eventually to a wire fracture with temperature cycles.<\/div><\/li><\/ul><h4 class=\"heading-4 ace-line old-record-id-UBO7dJ2DioMQBnxJTaIcU2wTnEj\">Crevice Corrosion:<\/h4><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-CgoldzL8HoHKmxxvdAPcciAonYd\" data-list=\"bullet\"><div><strong>Cause:<\/strong> A type of localized attack in a shielded and stagnant region, such as underneath a particle of contamination or in the poorly adhered region between the wire and <u><a href=\"https:\/\/www.fs-pcba.com\/pcb-overmolding\/\" data-lark-is-custom=\"true\">mold compound<\/a><\/u>.<\/div><\/li><li class=\"ace-line ace-line old-record-id-SfSJdbyqGoSjnpxN3LicefyXnVa\" data-list=\"bullet\"><div><strong>Wire Bond Failure Mode:<\/strong> The entrapment of moisture within these micro-crevices leads to an acidic and corrosive environment. This is because the produced acidity leads to corrosion within the wire bond interface; thus, failure may occur due to a weak wire heel area, which is invisible during inspection.<\/div><\/li><\/ul><h4 class=\"heading-4 ace-line old-record-id-AAz5dtIsBo0WbdxY8KfcXYcIn0J\">Intergranular Corrosion (IGC):<\/h4><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-LWNvdnhFCohx9Uxj0oBcJFgWnxb\" data-list=\"bullet\"><div><strong>Cause:<\/strong> Preferential corrosion along grain boundaries in a metal, often due to reactivity introduced by the segregation of impurities.<\/div><\/li><li class=\"ace-line ace-line old-record-id-PxIWdcVpCohbbcxr8hDcyMXYnUd\" data-list=\"bullet\"><div><strong>Wire Bond Failure Mode:<\/strong> This is a possibility for aluminum bond pads if the metallization technique is not fully optimized. The bond pad itself may degrade due to the IGC, leading to bond lift-off and <u><a href=\"https:\/\/www.fs-pcba.com\/pad-cratering\/\" data-lark-is-custom=\"true\">pad cratering<\/a><\/u>.<\/div><\/li><\/ul><h4 class=\"heading-4 ace-line old-record-id-BBMSdhgyGomIYfxdZcdcG7RTnJd\">Stress Corrosion Cracking (SCC):<\/h4><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-YtScd4kLnoMbqgxG3Udct9u2nJc\" data-list=\"bullet\"><div><strong>Cause:<\/strong> The effect of tensile forces coupled with a corrosive environment causes brittle cracks in a material to progress.<\/div><\/li><li class=\"ace-line ace-line old-record-id-MlsjdmAIBoXuRIxObXzcn5OcnEg\" data-list=\"bullet\"><div><strong>Wire Bond Failure Mode:<\/strong> SCC can be a concern, although a remote one, in prestressed wire bonds, especially in packages with high residual stresses due to the encapsulation material and process. With a corrodent environment present, a wire can fail suddenly with a brittle failure mode, preceded only by a slight elongation.<\/div><\/li><\/ul><h4 class=\"heading-4 ace-line old-record-id-UC0hdT9qKoVHb9xizoIcl8HfnDh\">Uniform Corrosion:<\/h4><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-AijqdNMbDo0Eb6xZA5LcNgTknpd\" data-list=\"bullet\"><div><strong>Cause:<\/strong> A general chemical attack, such as oxidation, evenly distributed over the entire surface area of a metal.<\/div><\/li><li class=\"ace-line ace-line old-record-id-AwtedxGsPogM0GxSTpNcyQqEnwc\" data-list=\"bullet\"><div><strong>Wire Bond Failure Mode:<\/strong> This can be seen in aluminum wires in the form of a gradual growth of aluminum oxide, which leads to an increase in the electrical resistance of the wires. And in copper wires in the form of a layer of copper oxide, which can also degrade conductivity and bondability.<\/div><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-30c0264 elementor-widget elementor-widget-text-editor\" data-id=\"30c0264\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"true\"><h3 class=\"heading-3 ace-line old-record-id-ZYKEdQTaSoBWk4xomRUcmYPvnBf\"><strong>Material Types &amp;<\/strong> <strong>Their Corrosion Characteristics <\/strong><strong>in Wire Bonds<\/strong><\/h3><div class=\"ace-line ace-line old-record-id-Anm5d3XZ5oEe0Pxfg0KcCQ3znJg\">The corrosion of wire bonds is caused by environmental factors such as moisture, temperature, and the presence of contaminants such as sulfur and chlorine.<\/div><div class=\"ace-line ace-line old-record-id-JvFCdtdfKozYQ0xJjHncrzzmn1g\">Among metals, the performance will be different when in a corrosive environment; therefore, the selection of a metal over another is an important factor to be taken into consideration.<\/div><div>\u00a0<\/div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-QawQdmHRAosK4PxUN3Ic6gZHnJe\" data-list=\"bullet\"><div><strong>Gold (Au)<\/strong>: This can be coupled with other aluminum metals that may be unstable. This is because these metals will eventually corrode the bond interface whenever they come into contact with moisture.<\/div><\/li><li class=\"ace-line ace-line old-record-id-N3RHdb4gIomYeGxYa6VcnaCqnMd\" data-list=\"bullet\"><div><strong>Aluminum (Al):<\/strong> This is prone to galvanic corrosion in the presence of moisture and other metals. The oxide scales can reduce the aluminum metal bond strength. The oxide surface scales will impact the electrical performance during bonding.<\/div><\/li><li class=\"ace-line ace-line old-record-id-NquKdkC72oO8wnxMTlacn3u5nFf\" data-list=\"bullet\"><div><strong>Copper (Cu)<\/strong>: Copper has oxide properties and can be prone to sulfides in extreme conditions with moisture and sulfur in the atmosphere. Even if copper oxide is formed, sulfides may be other causes of bond failure, especially with moisture. The copper oxide is a problem with regard to reliability in the bond interface itself.<\/div><\/li><li class=\"ace-line ace-line old-record-id-Cqand4E3noY3h2xp73Ncoargnne\" data-list=\"bullet\"><div><strong>Silver (Ag):<\/strong> It is prone to tarnishing because of sulfur compound formation, resulting in the silver sulfide layer, thus leading to an increase in the resistance value of the bond. Since tarnishing can be rapid if the sulfur compound is high, restrictions need to be established within the testing environments.<\/div><\/li><\/ul><div class=\" old-record-id-VRYLdJ2SOo6lDgxeAEVcgvsMnNg\" data-type=\"sheet\"><p>\u00a0<\/p><table><colgroup> <col width=\"182\" \/> <col width=\"182\" \/> <col width=\"182\" \/> <col width=\"182\" \/><\/colgroup><tbody><tr style=\"background-color: #006fad; color: white;\"><td><strong>Material<\/strong><\/td><td><strong>Key Advantages<\/strong><\/td><td><strong>Main Challenges<\/strong><\/td><td><strong>Reliability Factors<\/strong><\/td><\/tr><tr><td><strong>Aluminum<\/strong><\/td><td>Cost-effective, easy bonding<\/td><td>Intermetallics with Au, moderate corrosion<\/td><td>Mild corrosion, fatigue<\/td><\/tr><tr><td><strong>Gold<\/strong><\/td><td>Ductile and corrosion-resistant<\/td><td>Expensive, intermetallics with Al<\/td><td>Excellent fatigue, low corrosion<\/td><\/tr><tr><td><strong>Copper<\/strong><\/td><td>High conductivity, low cost<\/td><td>Prone to corrosion, bonding difficulty<\/td><td>High corrosion risk, hardening<\/td><\/tr><tr><td><strong>Silver<\/strong><\/td><td>Good conductivity, promising reliability<\/td><td>Limited data, tarnishing<\/td><td>Moderate corrosion, less proven fatigue<\/td><\/tr><\/tbody><\/table><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c57ed9a elementor-widget elementor-widget-heading\" data-id=\"c57ed9a\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Mechanical and Thermal Fatigue<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b9a6eda elementor-widget elementor-widget-text-editor\" data-id=\"b9a6eda\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-WhhGdOvZ9or13VxzutTcfzn5n1b\">Fatigue failures occur due to cyclic stresses, which are well below the ultimate tensile strength of the material but still succeed in initiating and propagating cracks within the material.<\/div><div>\u00a0<\/div><h3 class=\"heading-3 ace-line old-record-id-LY9hdA2FCoNtMqxKsDmcaOPznKg\">Heel Crack<\/h3><div class=\"ace-line ace-line old-record-id-JuBQd2HEdoWSHIxpO7scClRTnPg\">This is a classic example of a fatigue failure. The heel region of a wire bond, which is where the wire meets the ball or wedge, is a natural stress concentrator.<\/div><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-IQ0FdQTNDotHDAxFxd3cR3HunW1\" data-list=\"bullet\"><div>Root Cause: Relative movement is induced by the difference in coefficients of thermal expansion among the silicon chip, the bond wire, and the substrate due to the process of thermal cycles. This periodic movement causes cyclic bending stresses to act on the wire heel, ultimately leading to the formation of micro-cracks and a typical failure mode at the wire heel region.<\/div><\/li><\/ul><h3 class=\"heading-3 ace-line old-record-id-UUfbdFhDBoSVuJxG8hycZdNynvd\">Neck Break (Ball Bonds):<\/h3><div class=\"ace-line ace-line old-record-id-VFLhdUJvZobiFhxTkq2c85P5nIx\">As with heel cracks, a secondary location with a cyclic fatigue tendency is the area where the wire leaves the ball bond, often referred to as the &#8216;neck&#8217;.<\/div><div>\u00a0<\/div><h3 class=\"heading-3 ace-line old-record-id-Qrw9dHg5yoWAz9xCaDtc2mbxnmd\">Cratering:<\/h3><div class=\"ace-line ace-line old-record-id-S1gjdxNIjop8vmxKkm4cnpxrnLc\">This is a fail mode with significant importance because the bond pad and silicon will be adversely affected. This is due to the excessive ultrasonic energy or bond force, which can cause the bond process to remove some of the silicon material from the substrate. The failure mode can be an immediate failure and can also be a latent failure.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-b8842ab elementor-widget elementor-widget-heading\" data-id=\"b8842ab\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Failure Analysis in Wire Bonding<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-36c91e8 elementor-widget elementor-widget-text-editor\" data-id=\"36c91e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-SGdedJwlmox9mYxlbKbcLNyUnph\">For a systematic failure analysis, a structured approach is required. The below flowchart defines the procedure:<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-78adbcd elementor-widget elementor-widget-image\" data-id=\"78adbcd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"3349\" height=\"2805\" src=\"https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/wire-bonding-failure-analysis-flowchart.png\" class=\"attachment-full size-full wp-image-39256\" alt=\"wire bonding failure analysis flowchart\" srcset=\"https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/wire-bonding-failure-analysis-flowchart.png 3349w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/wire-bonding-failure-analysis-flowchart-300x251.png 300w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/wire-bonding-failure-analysis-flowchart-1024x858.png 1024w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/wire-bonding-failure-analysis-flowchart-768x643.png 768w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/wire-bonding-failure-analysis-flowchart-1536x1286.png 1536w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/wire-bonding-failure-analysis-flowchart-2048x1715.png 2048w, https:\/\/www.fs-pcba.com\/wp-content\/uploads\/2025\/11\/wire-bonding-failure-analysis-flowchart-14x12.png 14w\" sizes=\"(max-width: 3349px) 100vw, 3349px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5334ee7 elementor-widget elementor-widget-text-editor\" data-id=\"5334ee7\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h3 class=\"heading-3 ace-line old-record-id-NMTAdpg7yoKp3axt4BacTNc6nzg\"><strong>Non-Destructive Analysis (NDA):<\/strong><\/h3><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-NIjsdYqOdot4BZx9q5Jc7zQ6nyd\" data-list=\"bullet\"><div><strong>Electrical Test:<\/strong> It helps in determining the type of failure (open, high-resistance, shortcut) and in isolating the defective net\/bond.<\/div><\/li><li class=\"ace-line ace-line old-record-id-QM3PdSLLDodNObxneMEcQtnenQb\" data-list=\"bullet\"><div><u><strong><a href=\"https:\/\/www.fs-pcba.com\/x-ray-inspection\/\" data-lark-is-custom=\"true\">X-Ray<\/a><\/strong><\/u><strong> Imaging:<\/strong> Internal defects like wire sweep, wire breaks, shorts, and ball\/wedge irregularities can be detected without opening the package.<\/div><\/li><li class=\"ace-line ace-line old-record-id-A2ljd9xbwol65txCvgPcO04CnYb\" data-list=\"bullet\"><div><strong>C-Mode Scanning Acoustic Microscopy (C-SAM):<\/strong> This uses ultrasonic inspection to look for interfacial delamination, evidence of internal cracks, and voids within the package, especially at interfaces involving mold compound and the chip or leadframe.<\/div><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-5473130 elementor-widget elementor-widget-text-editor\" data-id=\"5473130\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><h3 class=\"heading-3 ace-line old-record-id-FuPLdWRkooDw31xFCIlcfgEZnLP\"><strong>Destructive Physical Analysis (DPA):<\/strong><\/h3><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-QJjSddXtxoSglQxIiiGcNO6YnKg\" data-list=\"bullet\"><div><strong>Decapsulation:<\/strong> A process of removal of mold compound using chemicals\/plasma in order to view the die and wire bonds.<\/div><\/li><li class=\"ace-line ace-line old-record-id-HAg7devpso9X7HxuGOtc7gqwnxg\" data-list=\"bullet\"><div><strong>Optical Microscopy:<\/strong> First <u><a href=\"https:\/\/www.fs-pcba.com\/manual-inspection\/\" data-lark-is-custom=\"true\">visual inspection<\/a><\/u> aimed at locating the failure area and determining its characteristics, such as discoloration, lifted bond, and wire breaks.<\/div><\/li><li class=\"ace-line ace-line old-record-id-IpFidBH9uoksrKxdgrscOg5LnWJ\" data-list=\"bullet\"><div><strong>Scanning Electron Microscopy (SEM):<\/strong> It gives detailed and high-magnification images of the failure location, which is an important criterion for the study of failure by ductile versus brittle materials as well as microscopic void paths. [3]<\/div><\/li><li class=\"ace-line ace-line old-record-id-JP2IdV9pOoSfk9xqYYBcBxobn8c\" data-list=\"bullet\"><div><strong>Energy Dispersive X-ray Spectroscopy (EDS):<\/strong> Simultaneously used with SEM for elemental composition analysis in a chosen area. It is a key tool for verifying the existence of intermetallic components (Au-Al ratio), corrosion products (oxygen with aluminum, sulfur with silver), and ionic contaminants (chlorine and potassium).<\/div><\/li><\/ul><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8fb10fd elementor-widget elementor-widget-heading\" data-id=\"8fb10fd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Mitigation Techniques for Corrosion in Wire Bonding<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6ee0918 elementor-widget elementor-widget-text-editor\" data-id=\"6ee0918\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-GCPVdyvJroLOGsxt2iScP6uxnWA\">There are a few methods available for improving wire bond reliability:<\/div><h3 class=\"heading-3 ace-line old-record-id-K6KyduT9gos0h9xVBeFc6tNinyd\">Material Selection and Matching:<\/h3><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-VD6YdLITMoqxohxifZacu2KMnuh\" data-list=\"bullet\"><div>Use other than Au-Al wire bonding in high-reliability, <u><a href=\"https:\/\/www.fs-pcba.com\/high-tg-pcb\/\" data-lark-is-custom=\"true\">high-temperature applications<\/a><\/u>. This may include aluminum-to-aluminum bonding and use of palladium-coated copper wire instead of bare copper wire because of its better protection against aluminum oxidation and corrosion.<\/div><\/li><li class=\"ace-line ace-line old-record-id-KXrVdzeKooUwNFxP52Bcxyiunvg\" data-list=\"bullet\"><div>Use mold compounds with low ionic contamination and low moisture absorption rates.<\/div><\/li><\/ul><h3 class=\"heading-3 ace-line old-record-id-RbH9dvKqDovSR6xWopIcQJ1wnEb\">Process Optimization:<\/h3><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-FNv4d0vKHoDzChxvud0ciwIlnGd\" data-list=\"bullet\"><div>Create a strong process window regarding the bonding forces, energy, duration, and temperature so that a strong bond can be formed without any harm to the wafer and with minimal initial intermetallic compound growth.<\/div><\/li><li class=\"ace-line ace-line old-record-id-TruYd1w0YoN8Cxx4NaWcr397nBb\" data-list=\"bullet\"><div>Secure tight control of the manufacturing environment against ionic contamination and moisture exposure.<\/div><\/li><\/ul><h3 class=\"heading-3 ace-line old-record-id-ICLrdF4vaoSg8WxZYEhcK1uHnac\">Protective Barriers:<\/h3><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-BJZLdgTKLofvCIxCM8ic6DPVnpb\" data-list=\"bullet\"><div>Use <u><a href=\"https:\/\/www.fs-pcba.com\/a-comprehensive-guide-to-osp-pcb-surface-finish\/\" data-lark-is-custom=\"true\">protective coatings<\/a><\/u> on the bond pads, for example, <u><a href=\"https:\/\/www.fs-pcba.com\/enig-finish\/\" data-lark-is-custom=\"true\">Electroless Nickel<\/a><\/u>\/<u><a href=\"https:\/\/www.fs-pcba.com\/enepig\/\" data-lark-is-custom=\"true\">Electroless Palladium<\/a><\/u>\/Immersion Gold, which offers a level, corrosion-resistant and bondable surface.<\/div><\/li><li class=\"ace-line ace-line old-record-id-CHyudgrddoCr7mxdzDYcOSchn0b\" data-list=\"bullet\"><div>Assure a strong encapsulation process with a hermetic or near-hermetic seal against moisture and contaminants.<\/div><\/li><\/ul><h3 class=\"heading-3 ace-line old-record-id-MG8KdRAf2ox8auxYHnQcCaVMnYc\">Design for Reliability (DfR):<\/h3><ul class=\"list-bullet1\"><li class=\"ace-line ace-line old-record-id-OAoldRFXBoAsl7xy7EYcHyA4ngh\" data-list=\"bullet\"><div>Optimize wire loop shapes to reduce heel bond stress.<\/div><\/li><li class=\"ace-line ace-line old-record-id-Whmgd3txOoyGQFxQwh8c4YjRnDh\" data-list=\"bullet\"><div>It must satisfy the design rules of the bond pad so that a strong base for bonding is ensured.<\/div><\/li><\/ul><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a0512e8 elementor-widget elementor-widget-heading\" data-id=\"a0512e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc86158 elementor-widget elementor-widget-text-editor\" data-id=\"fc86158\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-VDGodvnzDoAs08xx7HZcO5DPnvd\">The failure modes in wire bonding, namely intermetallic growth, corrosion, and fatigue failures, often occur simultaneously with each other. A failure with a small growth of the intermetallic compound may progress with corrosion and ultimately result in a fatigue failure.<\/div><div class=\"ace-line ace-line old-record-id-KuLfdpvPCozrQCxATwQc6v5Cndq\">\u00a0<\/div><div class=\"ace-line ace-line old-record-id-Ry4vdY1W9oQfTFxmos6cHkFnnXc\">Today, in the aggressive semiconductor industry, the need for a transition from a reactive failure analysis mode to a proactive \u2018reliability by design\u2019 approach is paramount.<\/div><div class=\"ace-line ace-line old-record-id-GtRwdTH9NoMbHwxA9Mbc0Kj2nCe\">\u00a0<\/div><div class=\"ace-line ace-line old-record-id-SG0ddLJUyoMu9CxQ16FcBNKLnuy\">Understanding failure mechanisms helps in design-level decision-making related to materials and wire bonding design well in advance of deployment. For primitive understanding related to wire bonding types, materials, and related processes, see the foundational article:<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-26e7d20 e-transform elementor-widget elementor-widget-text-editor\" data-id=\"26e7d20\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;_transform_scale_effect_hover&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:0.90000000000000002220446049250313080847263336181640625,&quot;sizes&quot;:[]},&quot;_transform_scale_effect_hover_tablet&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]},&quot;_transform_scale_effect_hover_mobile&quot;:{&quot;unit&quot;:&quot;px&quot;,&quot;size&quot;:&quot;&quot;,&quot;sizes&quot;:[]}}\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p style=\"text-align: center;\"><a href=\"https:\/\/www.fs-pcba.com\/wire-bonding\/\"><span style=\"text-decoration: underline; color: #006fad;\"><strong>Wire Bonding: The Ultimate Guide to Process, Materials, and Design Choices<\/strong><\/span><\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2f8a9b0 elementor-widget elementor-widget-shortcode\" data-id=\"2f8a9b0\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"shortcode.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-shortcode\">    <style>\n        .vertical-divider {\n            height: 7px; \/* \u8bbe\u7f6e\u5206\u5272\u7ebf\u9ad8\u5ea6 *\/\n            background:#006FAD;\n        }\n    <\/style>\n<div class=\"vertical-divider\"><\/div>    <\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7552382 elementor-widget elementor-widget-heading\" data-id=\"7552382\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">FAQs about Wire Bonding Failures<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0c62d49 elementor-widget elementor-widget-accordion\" data-id=\"0c62d49\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"accordion.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion\">\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1291\" class=\"elementor-tab-title\" data-tab=\"1\" role=\"button\" aria-controls=\"elementor-tab-content-1291\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">What makes copper wire bonds so easily corroded?\u00a0<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1291\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"1\" role=\"region\" aria-labelledby=\"elementor-tab-title-1291\"><p><span style=\"font-weight: 400;\">The reactivity of copper to oxygen and sulfur compounds is easily corroded. Copper bonds are particularly prone to corrosion, especially when they come in contact with environmental factors like humidity and dirt. Galvanic corrosion can occur if there is any addition of dissimilar metals.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1292\" class=\"elementor-tab-title\" data-tab=\"2\" role=\"button\" aria-controls=\"elementor-tab-content-1292\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">What is the best wire bond material for high-frequency or high-power applications?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1292\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"2\" role=\"region\" aria-labelledby=\"elementor-tab-title-1292\"><p><span style=\"font-weight: 400;\">Gold and copper are both commonly used wire bond materials for high-power and high-frequency applications based on their good conductivity. Silver also has limited usage as a high-frequency or high-power bond material due to its tendency to tarnish. However, materials would ultimately need to be sourced based on cost, conductivity, and stability in environmental conditions.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1293\" class=\"elementor-tab-title\" data-tab=\"3\" role=\"button\" aria-controls=\"elementor-tab-content-1293\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">How is wire bonding failure connected to the issues of the contemporary world regarding the reliability of electric vehicles?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1293\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"3\" role=\"region\" aria-labelledby=\"elementor-tab-title-1293\"><p><span style=\"font-weight: 400;\">Wire bonding failures present a risk, particularly in the case of corrosion and fatigue in battery management systems, which can promote short circuits or overheating in electric vehicles, contributing to range anxiety and safety issues that have been aggravated by the transition to renewable transportation on a global basis.\u00a0<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-accordion-item\">\n\t\t\t\t\t<div id=\"elementor-tab-title-1294\" class=\"elementor-tab-title\" data-tab=\"4\" role=\"button\" aria-controls=\"elementor-tab-content-1294\" aria-expanded=\"false\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon elementor-accordion-icon-left\" aria-hidden=\"true\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-closed\"><i class=\"fas fa-plus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t<span class=\"elementor-accordion-icon-opened\"><i class=\"fas fa-minus\"><\/i><\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t<a class=\"elementor-accordion-title\" tabindex=\"0\">What gets shifted with wire bond performance when subject to thermal cycling?<\/a>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t<div id=\"elementor-tab-content-1294\" class=\"elementor-tab-content elementor-clearfix\" data-tab=\"4\" role=\"region\" aria-labelledby=\"elementor-tab-title-1294\"><p><span style=\"font-weight: 400;\">The heating and cooling of the materials causes the materials to expand and contract, creating mechanical stresses at the bond interface. There may be fatigue cracking, heel breaks, or bond lift-off due to thermal cycling, compromising the mechanical integrity of the bond.<\/span><\/p><\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8719c90 elementor-widget elementor-widget-text-editor\" data-id=\"8719c90\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div data-page-id=\"CEijdcdvlokAzexVEvxc0ImNn7b\" data-lark-html-role=\"root\" data-docx-has-block-data=\"false\"><div class=\"ace-line ace-line old-record-id-VKIjdkFomoSAaDxX4c1cZkZPnBf\"><strong>References:<\/strong><\/div><div class=\"ace-line ace-line old-record-id-VKIjdkFomoSAaDxX4c1cZkZPnBf\">[1] Harman, G. (2010). <em>Wire Bonding in Microelectronics<\/em> (3rd ed.). McGraw-Hill Professional.<\/div><div class=\"ace-line ace-line old-record-id-VKIjdkFomoSAaDxX4c1cZkZPnBf\">[2] Su, B., Qu, J., &amp; Pecht, M. (2019). <em>Copper Wire Bonding<\/em>. Springer.<\/div><div class=\"ace-line ace-line old-record-id-VKIjdkFomoSAaDxX4c1cZkZPnBf\">[3] Lai, Z., &amp; Mei, Y. (2018). <em>Advanced Wirebond Interconnection Technology<\/em>. Springer.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<aside class=\"elementor-column elementor-col-33 elementor-top-column elementor-element elementor-element-6bd570c\" data-id=\"6bd570c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-71f4a51 elementor-widget elementor-widget-spacer\" data-id=\"71f4a51\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-f697a38 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"f697a38\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-9b64eed\" data-id=\"9b64eed\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-c8383d4 elementor-widget elementor-widget-heading\" data-id=\"c8383d4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-large\">Service<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section 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data-id=\"e88cf3b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"icon-list.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<ul class=\"elementor-icon-list-items\">\n\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.fs-pcba.com\/ic-programming-service\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-chevron-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">IC Programming<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.fs-pcba.com\/procurement-service\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-chevron-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Component Procurement<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.fs-pcba.com\/pcb-manufacturing-services\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-chevron-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">PCB Manufacturing<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.fs-pcba.com\/pcb-assembly\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-chevron-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">PCB Assembly<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.fs-pcba.com\/pcba-prototyping\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-chevron-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">PCBA Prototype<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.fs-pcba.com\/cable-and-wire-harness-assembly\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-chevron-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Harness Assembly<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.fs-pcba.com\/box-build-assembly\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-chevron-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">Box Build Assembly<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t\t\t<li class=\"elementor-icon-list-item\">\n\t\t\t\t\t\t\t\t\t\t\t<a href=\"https:\/\/www.fs-pcba.com\/pcb-test\/\">\n\n\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-icon\">\n\t\t\t\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-chevron-right\"><\/i>\t\t\t\t\t\t<\/span>\n\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-icon-list-text\">PCB Test<\/span>\n\t\t\t\t\t\t\t\t\t\t\t<\/a>\n\t\t\t\t\t\t\t\t\t<\/li>\n\t\t\t\t\t\t<\/ul>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-a1652d7 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a1652d7\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-4b9b413\" data-id=\"4b9b413\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8f0deec elementor-widget elementor-widget-heading\" data-id=\"8f0deec\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<span class=\"elementor-heading-title elementor-size-large\">Quote<\/span>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-61f23ac elementor-button-align-stretch elementor-widget elementor-widget-form\" data-id=\"61f23ac\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"New Form\" aria-label=\"New Form\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"39079\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"61f23ac\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"\" \/>\n\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-above\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tName\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Name\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Email\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-tel elementor-field-group elementor-column elementor-field-group-field_19f75cd elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_19f75cd\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tPhone\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input size=\"1\" type=\"tel\" name=\"form_fields[field_19f75cd]\" id=\"form-field-field_19f75cd\" class=\"elementor-field elementor-size-sm  elementor-field-textual\" placeholder=\"Phone\" pattern=\"[0-9()#&amp;+*-=.]+\" title=\"Only numbers and phone characters (#, -, *, etc) are accepted.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-sm\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Message\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-upload elementor-field-group elementor-column elementor-field-group-field_9dadb5c elementor-col-100\">\n\t\t\t\t\t\t\t<input type=\"file\" name=\"form_fields[field_9dadb5c]\" id=\"form-field-field_9dadb5c\" class=\"elementor-field elementor-size-sm  elementor-upload-field\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-sm\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Send<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/aside>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-6af7b482 elementor-section-full_width elementor-section-height-default elementor-section-height-default\" data-id=\"6af7b482\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-1190261c\" data-id=\"1190261c\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-a13aa39 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"a13aa39\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-79f97066\" data-id=\"79f97066\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-4a0f45d3\" data-id=\"4a0f45d3\" data-element_type=\"column\" data-e-type=\"column\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-7e894096 elementor-widget elementor-widget-heading\" data-id=\"7e894096\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<p class=\"elementor-heading-title elementor-size-default\">Get a quote<\/p>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-78c3814f elementor-button-align-center elementor-widget elementor-widget-form\" data-id=\"78c3814f\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;step_next_label&quot;:&quot;Next&quot;,&quot;step_previous_label&quot;:&quot;Previous&quot;,&quot;button_width&quot;:&quot;100&quot;,&quot;step_type&quot;:&quot;number_text&quot;,&quot;step_icon_shape&quot;:&quot;circle&quot;}\" data-widget_type=\"form.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<form class=\"elementor-form\" method=\"post\" name=\"New Form\" aria-label=\"New Form\">\n\t\t\t<input type=\"hidden\" name=\"post_id\" value=\"39079\"\/>\n\t\t\t<input type=\"hidden\" name=\"form_id\" value=\"78c3814f\"\/>\n\t\t\t<input type=\"hidden\" name=\"referer_title\" value=\"\" \/>\n\n\t\t\t\n\t\t\t<div class=\"elementor-form-fields-wrapper elementor-labels-\">\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-text elementor-field-group elementor-column elementor-field-group-name elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-name\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tName\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"text\" name=\"form_fields[name]\" id=\"form-field-name\" class=\"elementor-field elementor-size-md  elementor-field-textual\" placeholder=\"Name\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-email elementor-field-group elementor-column elementor-field-group-email elementor-col-100 elementor-field-required\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-email\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tEmail\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t<input size=\"1\" type=\"email\" name=\"form_fields[email]\" id=\"form-field-email\" class=\"elementor-field elementor-size-md  elementor-field-textual\" placeholder=\"Email\" required=\"required\">\n\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-tel elementor-field-group elementor-column elementor-field-group-field_d541da3 elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-field_d541da3\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tPhone\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t\t\t<input size=\"1\" type=\"tel\" name=\"form_fields[field_d541da3]\" id=\"form-field-field_d541da3\" class=\"elementor-field elementor-size-md  elementor-field-textual\" placeholder=\"Phone\" pattern=\"[0-9()#&amp;+*-=.]+\" title=\"Only numbers and phone characters (#, -, *, etc) are accepted.\">\n\n\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-type-textarea elementor-field-group elementor-column elementor-field-group-message elementor-col-100\">\n\t\t\t\t\t\t\t\t\t\t\t\t<label for=\"form-field-message\" class=\"elementor-field-label elementor-screen-only\">\n\t\t\t\t\t\t\t\tMessage\t\t\t\t\t\t\t<\/label>\n\t\t\t\t\t\t<textarea class=\"elementor-field-textual elementor-field  elementor-size-md\" name=\"form_fields[message]\" id=\"form-field-message\" rows=\"4\" placeholder=\"Message\"><\/textarea>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<div class=\"elementor-field-group elementor-column elementor-field-type-submit elementor-col-100 e-form__buttons\">\n\t\t\t\t\t<button class=\"elementor-button elementor-size-md\" type=\"submit\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Send Message<\/span>\n\t\t\t\t\t\t\t\t\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/button>\n\t\t\t\t<\/div>\n\t\t\t<\/div>\n\t\t<\/form>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-33 elementor-inner-column elementor-element elementor-element-ffbf3c3\" data-id=\"ffbf3c3\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap\">\n\t\t\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-2e5be2b elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"2e5be2b\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-d1ab00c\" data-id=\"d1ab00c\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-bab0168 elementor-widget elementor-widget-heading\" data-id=\"bab0168\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-xl\">Related Blogs<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-2febe08 elementor-posts--thumbnail-none elementor-grid-3 elementor-grid-tablet-2 elementor-grid-mobile-1 elementor-card-shadow-yes elementor-posts__hover-gradient elementor-widget elementor-widget-posts\" data-id=\"2febe08\" data-element_type=\"widget\" data-e-type=\"widget\" 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