PCB flexible
PCB flexible

PCB flexible

Why choose FS Technology Flexible PCB Boards?

The most commonly used PCBs after rigid PCBs are flexible PCBs, which are used in many different electronic devices and projects. Currently, this board type is frequently accessible and can be used in any project. Through the services of FS Technology, you can be assured that you will get top quality and more affordable flexible PCB boards due to our vast manufacturing capabilities, as follows:

  • Specialists in manufacturing flexible PCBs between 1-6 layers and with a maximum acceptable size of 610×1650 mm. If your project has additional needs, we will try our best to suit them.
  • Our provided surface treatment services include HASL, lead-free HASL, immersion gold, immersion tin, immersion silver, plated gold, OSP, carbon ink, ENEPIG and gold fingers.
  • FS Technology has an independent production and assembly workshop, which can provide cheaper flexible printed circuit boards (FPC) for your project without MOQ requirements.
  • 13Our fast turnaround flex Fabrication de PCB service can provide you with an expedited package to complete Prototypage de PCBA en un ou deux jours seulement.
  • To order your flexible boards, we require and accept most Gerber file formats, such as POWERPCB, PROTEL, PADS2000, CAD, AUTOCAD, ORCAD, P-CAD, CAM-350, CAM2000 etc.

Flexible PCB sample display

Capacité de fabrication flexible de PCBA

Matériaux disponiblesPolyimide, polyimide à haute Tg
Épaisseur du matériau25 µm-50 µm
Épaisseur du cuivre18 µm-35 µm
Diamètre minimal du trou0.004”
Rapport d'aspect du foret35:1
Trace minimale/espace0.003”/0.003”
Technologie de forageBlind/Buried vias and Micro vias
Contrôle de l'impédanceOui (tolérance 10%)

Capacité de fabrication de circuits imprimés flexibles

FS Technology utilise des processus de fabrication soustractifs, additifs ou semi-additifs pour répondre aux commandes des clients.

Dans un processus soustractif, un fabricant clé en main enlève sélectivement la feuille de cuivre indésirable de la surface d'un stratifié plaqué de cuivre pour établir une image de circuit. Parce qu'il permet de réduire les coûts, et que le processus est mature et fiable, il est respecté par les fabricants de PCB et est devenu courant.

Le processus additif des circuits imprimés flexibles fait référence à la méthode de placage sans courant utilisée par le fabricant pour électrodéposer le schéma de circuit sur le substrat du circuit imprimé qui, à l'origine, ne comportait pas de schéma de circuit. FS Technology utilise ce procédé pour les cartes de circuits imprimés flexibles à haute densité de circuits, mais comme cette méthode est "additive", le coût est élevé et la technologie est immature, elle n'est donc pas couramment utilisée.

La méthode semi-additive est une autre forme de procédé additif. Ce site Processus de fabrication des PCB utilise la lumière ultraviolette pour durcir le film, et utilise la technologie de l'électrodéposition pour augmenter l'épaisseur de cuivre de la ligne à l'épaisseur requise par le client. Enfin, la couche de cuivre excédentaire sous le photorésist est éliminée par gravure flash pour obtenir le motif de circuit souhaité. C'est une nouvelle façon de suivre l'évolution des dispositifs électroniques. Grâce à cette méthode, l'épaisseur du cuivre n'est pas affectée par la largeur de la ligne, et on obtient une carte flexible avec une largeur de ligne/un espacement de ligne minimum de 14 μm/14 μm et une ouverture minimum de 55 μm.

Capacité de finition des circuits imprimés flexibles

The manufacturing of the FPC is only the first step in a turnkey service. Surface preparation is usually required for fragile circuit boards to ensure that the circuit boards are in an acceptable assembly condition. Immersion gold, immersion tin and immersion silver are not the only options in surface treatment services as we offer a much greater range of other surface treatment services (HASL, lead-free HASL, plated gold, etc). In addition to technical advantages, the provision of free conformal paint service in small-batch prototype manufacturing orders is one of the primary factors that FS Technology has received well.

The combination of electronic components and assembly techniques enables endless possibilities for your flexible projects and FS Technology has the capabilities to support your project needs. FS Technology not only provides traditional SMT assembly and through-hole assembly but also flip-chip technology that inverts the chip and connects directly to the substrate.

Additionally, FS Technology has a complete quality management system and involving Test de PCBA in the assembly process is a critical part of the overall factory process, which includes free manual visual inspections and AOI testing. Accompanying these basic tests on flexible PCBA boards, ICT, flying probe testing and X-ray testing are additional compulsory tests that are required and performed during the manufacturing process of your electronic projects.

Les avantages de l'achat de circuits imprimés flexibles pour les projets électroniques

The technology used for flexible boards, also known as FPC or flexible printed circuit boards, are widely utilized in various fields and industries, which include consumer electronics, wearables, telecommunications, aviation, etc. Normally, flexible PCBAs exist in the form of single-layer boards and higher-density boards such as 8-layer, 10-layer or even 16-layer flexible boards, which are typically produced according to the needs of a project. If you choose FS Technology as your turnkey FPC supplier, we are capable of supplying all types of flexible PCBs that follow these characteristics:

  • Smaller and lighter substrates are used for flexible circuit board creation, measuring approximately 0.004 inches. Considering a minimalistic space and area, it is more suitable for complex circuits in a smaller footprint compared to other ordinary boards.
  • Grâce à une fonction unique de traitement de la pression, lorsque le circuit imprimé flexible assemblé est soumis à une force extérieure, les composants du circuit ne se déplacent pas.
  • If flexible boards are combined with rigid boards, the resulting boards, called rigid-flex boards, offer a combination of the features from both board types. That is to say, rigid-flex boards not only make up for the lower tensile strength (weakness) of flexible boards but also make up for the inflexibility of rigid boards.
  • Compared to other boards, High-end flexible PCB boards can reduce the risk of construction errors and repairs as well as provide protection for the advancement of the project.
  • Our flexible PCB come with the feature of easy airflow that cools the circuitry of the board.
  • The modifications in the structure of flexible PCB multicouche ensure that the construction of complicated structures and designs has adaptable features to make strong connections at the board corners.

Avantages du PCB flexible

L'avantage de prix du PCBA flexible

Price of flexible PCB

The price drivers of PCBA include material, size, structure, purchase volume, etc. Regarding retail, this may mean that the finished product seller may increase the profit of the project through these aspects. Under the same conditions, the price of circuit board types are in the order of rigid < flexible < rigid-flex, but from the perspective of the use of PCB materials, FPC boards use fewer materials and components. In terms of manufacturing materials, more manufacturers choose to use polyimide materials that are less expensive and are key materials in flexible PCB production. In terms of PCBA components, due to the recent global pandemic, the major downturn and shortage of component supply have skyrocketed the price of chip components so by using flexible PCBs, you may be able to save more on this aspect. On top of that, in regard to the personnel needed for production, flexible circuit boards can be built with the fewest number of technicians.

Applications of flexible circuits

Facing the environment of high-voltage and high-temperature circuits, customers often will choose IMS PCB due to its high thermal management performance, but circuit boards with metal layers as inner layers obviously cannot meet many customers’ needs for complex circuits. As a result, flexible circuits are mainly brought up as their first choice. In some severe cases, circuit boards with poor heat dissipation may release harmful chemicals when misused but premium flexible PCB boards offer that needed resistance. Flexible PCBs are made of polyamide or polyester film as the base material, which greatly increases their thermal stability and performance. Be sure to keep in mind that when electronic products face the threat of high temperatures, although rare, the physical phenomenon of thermal expansion and contraction may occur, causing a drop in overall performance. Subsequently, these flexible boards have features to operate on any type of connector used in electronics, especially compatibility with ZIP connectors.

Scénarios d'application des FPCB
Le PCB flexible permet de gagner de l'espace pour les circuits

Size of flexible PCB

As foldable circuit boards, flexible PCBs can not only provide three-dimensional space design freedom for projects but also improve space utilisation and weight efficiency in equipment. These boards require less area and lighter weight, and the use of a smaller footprint allows them to provide better functionality in full-featured large-scale projects. In small, reliable and consistent circuits or projects, flexible boards can also be installed in places where rigid circuit boards cannot because flexible PCBs utilize much fewer connectors and interconnects.

Domaines d'application du PCBA flexible personnalisé

Flexible printed circuit boards (FPC) are considered to be an integral part of any electronic device as they can be applied to a vast variety of electronic products, such as computers, keyboards, cameras, mobile phone circuitry, etc. FS Technology has been active in the FPC manufacturing and assembly industry for ten years and within this timeframe, we have worked with many customers from a massive range of industries who use our flex PCB services for the computer and medical industries. The use of flexible PCBA is not limited to this though as the possible applications are very extensive, some of which we will introduce to you now.

Flexible PCBs are created for a diverse scope of manufacturing projects in several industries, including robotics, which commonly uses this type of PCB. HMI machine layout is also configured over these boards and machines that are commonly found in shopping malls (e.g. bar code readers) contain these boards with processing devices integrated with flexible PCBs.

Plus, these flexible printed circuit boards are commonly used in GPS systems within vehicles as the control systems that have been engineered in automobiles are usually manufactured over these boards. Currently, in new vehicles, most of the latest breaking systems that are installed (e.g. antilock brake system) make great use of these boards in manufacturing, in addition to airbag deployment systems.

Over in the medical industry, state-of-the-art hearing instruments and heartbeat sensors are created around flex medical PCBs.

Moreover, different types of electric components, such as active and passive devices, are designed through the use of flexible boards, like high towers, light circuits, etc. Other applications of these boards include the likes of satellite stations & communication grid circuitry, where application-specific resistors and capacitors are created to use these boards for different circuit types, including ripple and filter circuits.

Circuits imprimés flexibles et circuits imprimés rigides

In order to facilitate your selection of a suitable PCB type, we will make a simple comparison between flexible and rigid PCBs but for further details, please read “Rigid vs Flex PCB".

  • Haute fiabilité et faible encombrement
  • Meilleure gestion thermique
  • Facile à réparer
  • Le circuit imprimé flexible est utilisé pour les opérations à grande vitesse où le rigide n'est pas utilisé.

Disadvantages of flexible boards compared to rigid boards:

  • The flexible PCB manufacturing process is more complex and requires a longer manufacturing time than rigid PCBs.
  • Comparaison des prix dans les mêmes conditions : PCB rigide-flexible > Flexible PCB > Rigid PCB


In conclusion, FS Technology’s flexible PCB manufacturing capabilities have been demonstrated and simply put, choosing FS Technology will ensure that you get PCBA boards at a lower price that can easily be modified, reshaped and electrically altered to suit your project. As a leading turnkey PCBA company in China, FS Technology aims to meet the needs of flexible Assemblage de PCB manufacturing customers using the latest materials and technologies, unswervingly adhering to customer quality and certification standards. If your electronic project needs our service, please get your flexible PCB price list by email below.

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