Общеизвестно, что производство высококачественных печатных плат (ПП) - это трудоемкий процесс, требующий тщательного контроля, тестирования, монтажа и пайки. В результате мы предоставляем полная сборка DIP в качестве одной из наших услуг. Это призвано сократить расходы, повысить точность и производительность, а также сделать весь процесс сборки и проверки печатных плат от начала до конца более простым и быстрым.
DIP is the abbreviation for dual in-line package, also known as DIL package, and THT is the abbreviation for through-hole technology. In the PCBA industry, Сборка DIP представляет собой почти то же значение, что и THT монтаж и представляет собой разновидность упаковки электронного устройства, состоящей из прямоугольного корпуса и двух параллельных рядов электрических соединительных контактов. Этот тип Сборка печатной платы refers to the process of mass-producing solder connections in which a printed circuit board (PCB) with components already installed is immersed in a tin furnace. All of the pins are parallel, point down, and stick out past the bottom plane of the package, at least far enough to be through-hole mounted to a printed circuit board (PCB), which means they can go through holes on the PCB and be soldered on the other side. The term “DIP” refers to a device packed as a plug-in, and the number of pins on this kind of device often does not exceed 100. Soldering DIP-packed components after surface mount technology (SMT) is a process that is often referred to as “DIP welding” or “DIP post welding.”
Most small and medium-sized integrated circuits also use this type of packaging. Most of the time, there are only 100 pins. A DIP-packaged CPU chip has two rows of pins that need to be inserted into a DIP-structured chip socket. It can, of course, also be plugged straight into a circuit board with the same number and arrangement of soldering holes. When plugging and unplugging a chip from a DIP packaging technology, one should take care not to damage the pins.
Why choose FS Technology's Electronics DIP Assembly?
Компания FS technology уже много лет обслуживает электронную промышленность и обладает богатыми знаниями в области обработки DIP. Как лучший turnkey through hole PCB assembly service company in China, we have served many projects in the welding machine and energy industry as well as the power control industry. The common theme of these projects is that the proportion of DIP processing on PCBA is relatively large. If you have specific demands for your printed circuit boards (PCBs), our process engineers are available to discuss DIP assembly technology in-depth. We guarantee on-time deliveries and, most importantly, the best possible customer service. DIP plug-in is an important part of the Процесс сборки печатной платы and the quality of the DIP plug-in determines the quality of the PCBA processing. Next, let us show you our capabilities:
Монтажная шкала DIP
- Full facilities from through-hole PCB fabrication to THT assembly;
- Comprehensive circuit board component procurement including SMD-компоненты, DIP-компоненты, integrated circuits, etc.
- Multiple testing guarantee services: manual testing, AOI testing, X-RAY testing, aging testing, flying probe testing, etc.
- 7 fully automatic through-hole assembly lines (including plug-ins, repairs, hand soldering wires and lead-free solder pots, etc.) that can mass produce 25,000 pieces of DIP ordinary products per month (minimum);
- Помимо контроля качества, FS Technology также уделяет внимание обучению персонала, и в настоящее время насчитывает более 300 профессиональных производственных сотрудников;
- Сосуществование manual through hole assembly и автоматическая сборка DIP;
- Керамический двухрядный корпус (CERDIP или CDIP)
- Пластиковый двухстрочный корпус (PDIP)
- Термоусадочный пластиковый двухрядный пакет (SPDIP)
- Kinny Dual In-line Package (SDIP или SPDIP)
THT Assembly Quality Assurance
- Строго контролируйте коэффициент прохождения DIP;
- Рабочие проходят строгое обучение, чтобы контролировать производительность и качество;
- Строгие стандарты отбора проб IPQC и QA LOT для обеспечения надежности Обработка THT;
- Before the plug-in, checks are done on the surface cleanliness of electronic components to detect oil stains, paint and other problems;
- During the plug-in, it is ensured that the electronic components are closed on the PCB to avoid unevenness and to uncover soldering pads well;
- If there is a direct indication on the surface of electronic components, we make sure that it is plugged in the correct direction;
- Attention is paid to the power strength of the plug-in components and to the PCB to avoid any damage due to excessive strength;
- Electronic components are not beyond the edge of any PCB board/frame, and we pay attention to the height and spacing between electronic components.
Процесс обслуживания сборки печатной платы DIP
Проверка статьи
Сначала мы проверяем и записываем количество, номер изделия, размер, номер шелкографии компонента DIP, стоимость и т.д. всех деталей, которые вы нам присылаете.
Схема компонентов DIP
Контуры некоторых компонентов необходимо сделать заранее из-за особенностей их изготовления или из-за требований к DIP-пайке печатной платы и плана всей печатной платы.
Вставка компонентов через сквозное отверстие
In this step, we place the material for the plug into the pins and then insert the pins into the PCB board. During plugging-in, it is essential to pay attention to the strength of the plug-in to prevent any damage to the circuit board or the nearby components. At the same time, we make sure that the Ориентация компонентов печатной платы, положение компонентов и их высота соответствуют друг другу.
Пайка волной
Nowadays, PCB assembly factories usually process the circuit boards after DIP through hole assembly by пайка волной. In wave soldering, flux is applied to a printed circuit board (PCB) during an in-line procedure. The printed circuit board is then preheated before being submerged in molten solder.
The procedure of DIP wave soldering is done automatically. Having said all of that, the process starts with a PCB board which continues to travel ahead beside the conveyor belt.
After this, a machine sprays the board in a separate tank. At this point, a very thin coating of flux will be applied to the underlying surface of the PCB and its pins. After that, the board plate will go down to a zone where it is preheated.
In this region where the board is covered in flux, the solvent begins to evaporate. Then, the active agent and the resin present in the Поток печатной платы will undergo a process of decomposition and activation. During this step, you must give the board and the components complete preheating.
При дальнейшем движении платы нижняя часть платы сталкивается с первой волной расплавленного припоя. С помощью этой волны сварочный флюс отпечатывается на печатной плате. Затем вторая волна горячего припоя ударяет в нижнюю часть печатной платы (ПП).
Эта умеренная волна способствует разделению соединительного мостика, который находится между сварочным концом и штифтом. Кроме того, она устраняет дефекты сварки.
There is a wide variety of solder machines on the market. Let’s briefly take a look at the machines!
Машина для пайки волной
A soldering machine typically has the following four components:
- Распылитель флюса
- Площадка для предварительного нагрева
- Насос создает волну
- Паяльник
A wave soldering machine has a solder tank that is first heated up and a specific temperature is kept on it for the soldering process.
Most of the time, a solder wave is inside the tank and the PCBs will go over the bottom of the board. This means that the board links up with the solder wave at that point.
Additionally, one needs to be careful when changing the wave’s height. By doing this, you would have to stop the wave from going over the front of the board. This is when the solder gets to where it needs to be.
The metal fingers on the conveyor make sure that the PCB stays in place in a specific spot. Different temperatures won’t hurt the metal fingers as it is made of titanium. Plus, the solder doesn’t change it in any way.
Ручная пайка компонентов
Ручная пайка - это традиционный метод припаивания свинцовых компонентов к печатной плате. Он обычно используется для мелкосерийная сборка печатных платЛабораторные работы по сборке, доработка/ремонт и добавление дополнительных компонентов в паяные сборки.
Расстояние между деталями
Компоненты, спаиваемые вручную, следует располагать дальше от других компонентов во избежание образования мостиков припоя. Обычно расстояние между площадками должно составлять от 50 до 100 мил.
В большинстве случаев припой наносится в виде проволоки, покрытой флюсом. При изготовлении паяных соединений вручную оператор может видеть процесс создания соединения и корректировать процесс пайки в зависимости от различных обстоятельств, например, паяемости. Учитывая это, ручная пайка по-прежнему используется для создания электрических соединений, требующих наибольшей надежности. Однако, когда требуется массовая пайка, ручная пайка высокого качества экономически нецелесообразна.
Использование паяльного железа
Научиться паять вручную - это приобретенный талант. Для нагрева наконечника паяльника используется электрический ток. Паяльное сверло - это металлическая деталь с луженым наконечником, используемая для пайки. Поскольку теплопроводность от наконечника к соединениям обычно слабая, температура наконечника должна быть выше температуры пайки.
Для получения качественных соединений необходимо использовать паяльник с правильно луженым наконечником. Для очистки следует использовать только влажную ткань или губку, но ни в коем случае не напильник или стальную щетку. Имеющиеся в продаже насадки для паяльников бывают самых разных форм и размеров, некоторые из них специально разработаны как насадки для паяльников с полым отсосом. Многие выступают за стандартизацию насадок, хотя этого еще не произошло.
Мытье доски
The surface of the PCBA will still have flux, ionic impurities, organic residues, and other substances after the soldering process is complete. The majority of circuit leakage may be attributed to the impurities that have attached themselves to the surface of the PCBA board. These compounds have the potential to cause harm to electronic components and disrupt circuits. Ionic contaminants on the board’s surface can cause it to malfunction if it is kept in a humid environment. This will lead to common PCBA failures or even circuit board shorts. Because of this, not only is it necessary for us to очистить печатную плату перед пайкой, но и очистка, которая происходит после пайки, имеет огромное значение.
Even though water washing is one of the more affordable options, it is often used only after an in-depth investigation of technical procedures has been conducted. Water-washing fluxes must be powerful enough to leave behind corrosive residues on the PCB and its components if they are to be used. It’s essential to keep in mind that water won’t remove rosin-based or synthetic, water-insoluble fluxes. Although water cleaning is a cost-effective option, it requires a thorough understanding of the underlying technology before it can be used effectively.
Cleaning the PCBA board can be used as one of the criteria to measure the strength of a through hole PCB assembly factory. As far as I know, many small workshops do not wash the board after the монтаж сквозного отверстия is completed, which may eventually lead to a rather ordinary inspection of the product by a customer although problems may arise when it is put into electronic applications.
Осмотр и проверка работоспособности
During the through hole assembly process, your printed circuit board (PCB) must undergo several checks and the Инспекция сборки печатной платы process includes: visual inspections, Инспекция AOI, in-circuit testing (ICT) or flying probe tests, and even automated or semi-automatic bench tests. Printed circuit board (PCB) functional testing determines if we will send a produced board to a customer after it has been made and left the factory. PCB functional testing is the most exhaustive testing regimen available. The objective is to uncover manufacturing faults that impair dependability, such as missing or wrong components, and solder connections that aren’t correctly connected.
This all means that the DIP PCBA board is subjected to incoming inspections that comply with the applicable standard and regulations. Things that need to be checked when inspecting components include whether the components’ performance, specifications, and packaging meet order requirements, product reliability requirements, assembly technology and equipment requirements, and storage requirements. In addition to the basic checks mentioned above, we also test the lead collinearity and lead coating layer thickness to verify that they can withstand heating and comply with the technology’s requirements.
Завершенный продукт
After ensuring that there are no issues, the printed circuit board assembly (PCBA) will be put together with the housing, put through further testing, and ultimately sent. The creation of PCBAs is a loop of a ring, and since any fault in one link would substantially influence the quality of the product as a whole, strict control of each step is essential.
As a PCB assembly company, FS Technology has spent a lot of time honing its expertise in DIP assembly. We are a one-stop shop for DIP assembly, electronic component procurement, finished product assembly, and testing.
В дополнение к внедрению общего управления качеством и охраной окружающей среды, мы также используем передовое оборудование для Производство печатных плат и тестирование.
Manual or automatic through hole PCB assembly?
Автоматизированная сборка со сквозными отверстиями
In THT automated assembly, machines that are controlled by a computer are used to position components on a circuit board. We may accomplish this by using various methods, such as machines to arrange components on the board or by using machines to solder the components into place. Using equipment, FS technology ensures the best quality product assembly at the lowest feasible cost. Scheduled preventative maintenance is used to keep all of FS technology’s machinery in good working order. Here are the advantages of choosing our automated DIP assembly services:
- Fully automatic equipment can easily achieve fast turnaround PCB assembly, and it is more suitable for крупносерийная сборка печатных плат. The assembly method is ideal for swiftly constructing a large number of PCBA or creating anything that is highly complicated and has a lot of DIP components;
- Automated assembly may help you save both time and money while producing products of a high standard. Compared to manual assembly, automated thru-hole assembly offers a variety of benefits that may make it the superior option;
- The primary advantage is that machines position components considerably more rapidly than a person can. In addition to this, the method is versatile enough to deal with boards of varying dimensions and degrees of complexity.
Ручная сборка сквозных отверстий
When it comes to complex DIP assembly tasks, FS technology is up to the task. We’ve structured our manual lines to cut down on product movement and worker motion as much as possible. The accurate and complete assembly is guaranteed by careful documentation and in-process inspections. We are a versatile and reasonably priced contract manufacturer because of our DIP assembly expertise. Manual printed circuit board DIP assembly is performed using a microscope, so it is slower and suitable for small batch PCB assembly orders. Here’s why through-hole assembly has survived:
- Low-volume orders, especially those involving very tiny or fragile components, sometimes need this assembly;
- There is a high degree of accuracy, and the user may readily adjust the positioning of each part. However, it is time-consuming, costly, and challenging to master;
- Assembling by hand provides greater room for personalization and adaptation. When using automated DIP assembly, you can only work with the components the machine offers;
- Assembling components by hand also encourages greater originality and improvisation. You may be creative in your approach to PCB assembly without being limited by mechanical means. This might result in increased product quality and a more significant advantage in the market;
- Перебои в электроснабжении и другие факторы окружающей среды могут негативно повлиять на автоматизированную сборку, что приведет к браку продукции. Ручная сборка не подвержена подобным задержкам. Вы можете оказать большее влияние на конечный результат.
Which is better: manual or fully automated THT assembly?
При выборе между ручной и автоматизированной сборкой печатных плат необходимо учитывать множество различных соображений. Размер и сложность печатной платы (ПП), количество необходимых узлов и требуемая степень точности часто являются существенными факторами.
Ручная сборка предпочтительна для менее сложных и небольших печатных плат, как указывалось ранее. С другой стороны, она занимает больше времени, чем автоматизированная сборка. Автоматизированная сборка предпочтительна для больших и сложных печатных плат. Цена выше, но время сборки сокращается по сравнению с человеческим трудом.
What is the difference between SMT and DIP Assembly?
SMT employs a technique called “sticking” whereas DIP utilizes a technology called “plugged-in.” Electronic components that use the DIP standard feature two rows of pins. In most cases, surface mount technology is put on the top surface of components that do not have pins or short leads and SMT assembly follows these basic criteria:
- The solder paste must be printed on the circuit board;
- The board must be mounted using the mounter;
- The device must be repaired by пайка оплавлением.
С другой стороны, в упаковочном устройстве, известном под названием "сварка погружением", соединения могут быть восстановлены с помощью пайки волной или ручной сварки.
Только компоненты без выводов или с короткими выводами, такие как QFN, DFN и Сборка BGA компоненты могут быть собраны с использованием технологии поверхностного монтажа, известной как Монтаж SMT. Он должен сначала напечатать паяльную пасту на печатной плате (PCB), затем использовать машину для поверхностного монтажа (SMT) для пайки компонентов, а затем использовать пайку оплавлением для закрепления компонентов на PCB.
В то время как DIP используется для пайки компонентов, поставляемых в упаковке со сквозным отверстием, компоненты могут быть закреплены на печатной плате с помощью пайки волной или ручной пайки.
SMT and DIP are both components of the labor that goes into PCB Assembly; however, not all PCBA businesses have strong SMT and DIP competence, and the quality of the soldering on the PCBs varies from company to company. Suppose you are considering working with a new PCBA manufacturer. In that case, you should see the manufacturer to check how things are together, the equipment used to make things, and other vital parts. FS technology предоставляет услуги SMT и DIP высочайшего качества.
Преимущества DIP перед SMT
Преимущества DIP-сборки очевидны. Ниже приведен список некоторых из них:
- Температура
Electrolytic capacitors, metal oxide film resistors, and transistors are PCBA components that may be damaged by exposure to temperatures that are too high. Due to their temperature resistance ranging from 105-235 °C, these components cannot be soldered using reflow soldering;
- Проблемы с упаковкой
SMT packaging still needs sockets, terminals, and high-power components. This is due to the fact that these components are challenging to manufacture and assemble. Due to this factor, we are restricted to using just the DIP packaging type for such components;
- Проблема стоимости
In spite of the fact that many commonly used components, including integrated circuits, inductors, transformers, diodes, and transistors, currently come in SMT packaging, DIP containers are much less expensive than SMT packages;
- Потребляемая мощность и размер
Некоторые другие соображения, включая энергопотребление и размер, вызывают необходимость использования в некоторых конструкциях компонентов DIP, а не SMT.
Заключение
The PCBA electronic processing industry continues to rely heavily on DIP for various reasons, making it a vital component. In contrast to the SMT plug-in, which is automated, the DIP plug-in calls for a large-scale manual process that takes a significant amount of human effort. Due to the extensive labor percentage, the failure rate of DIP assembly is considerable. As a result, keeping an eye on the quality of the PCBA when performing DIP processing is essential. DIP is the follow-up work of SMT, an important part of the PCB assembly process. However, large-sized components cannot be inserted by the auto machine, but manually plugged in, and then passed through the reflow oven to finally be soldered.
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