FPC Design




Flex PCB assembly refers to the process of assembling and soldering components onto a flex PCB board. It involves mounting and soldering components. such as resistors, capacitors, integrated circuits (ICs), connectors. and other electronic parts onto the flexible substrate.

GESFLEX circuit has specialized techniques and advance equipment. To ensure precise handling and soldering of components onto the flexible circuit board. At the same time,we offer one-stop flex PCB assembly services to meet your specific needs. Specifically, Our expertise in flexible circuit technology. And combined with state-of-the-art equipment and a skilled team. ensures the highest quality and precision in flex PCB assembly project.


Streamlined Communication

With a one-stop service, you have a single point of contact for all aspects of your Flex PCB and PCBA requirements. This streamlines communication. ensuring better coordination, faster response times, and reduced chances of miscommunication or delays.

Simplified Project Management

Coordinating multiple vendors for Flex PCB fabrication and PCBA can be complex and time-consuming. A one-stop service simplifies project management by handling all aspects. from design review and prototyping to component sourcing, assembly, and testing. This saves you valuable time and effort in coordinating and overseeing multiple suppliers.

Cost Savings

flex pcb Weight Reduction

A one-stop service can potentially offer cost savings compared to engaging multiple vendors. By consolidating the various stages of production under one provider. you can benefit from economies of scale, reduced shipping costs. and more efficient utilization of resources.

Faster Time to Market

With streamlined processes and reduced coordination efforts, a one-stop service. That can significantly accelerate your time to market. The seamless integration between Flex PCB fabrication. and PCBA allows for quicker turnaround times. enabling you to meet tight deadlines and get your product to market faster.

Enhanced Quality Control

By entrusting both Flex PCB fabrication and PCBA to a single provider. you can ensure consistent quality control throughout the entire production process. The service provider will have full visibility and control over the manufacturing stages. allowing for better traceability, inspection, and testing protocols.

Single Warranty and Support

In the event of any issues or concerns, having a one-stop service means you can rely on a single warranty and support system. This simplifies the process of troubleshooting, repairs. or replacements, providing you with a seamless and efficient resolution.

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Chip-on-Flex (COF) Assembly

Surface Mount Technology (SMT):

SMT is the most widely used assembly technique for flex PCBs. It involves placing surface-mount components directly onto the flexible substrate. and soldering them using solder paste and reflow soldering techniques.


Through-Hole Technology (THT):

THT assembly involves inserting component leads through holes in the flexible PCB. and soldering them on the other side of the board. This technique is less common in flex PCBs. but used for certain components that cannot be surface mounted.


Mixed Technology Assembly:

In some cases, flex PCBs need a combination of SMT and through-hole components. That called mixed technology assembly. where surface mount components mounted using SMT techniques. while through-hole components inserted and soldered using THT techniques.

FLEX PCB Flip-Chip Assembly

Flip-Chip Assembly:

Flip-chip assembly used for certain types of ICs where the chip flipped upside down. and attached directly to the flexible substrate using conductive bumps or solder balls. This technique provides better electrical performance and space efficiency.

FLEX PCB Mixed Technology Assembly

Chip-on-Flex (COF) Assembly:

COF assembly involves directly mounting bare semiconductor chips onto the flexible PCB. It requires precise alignment and bonding techniques to ensure proper electrical connections.




Advanced Manufacturing:

Our facility equipped with advanced machinery and technologies. to handle even the most complex flex PCB assembly requirements. We can handle small to large volume production runs with efficiency and accuracy.

flex pcb fabrication

Quality Control:

We prioritize quality at every stage of the assembly process. Rigorous inspection and testing procedures are in place to ensure that each flex PCB assembly. meets the highest standards of reliability, functionality, and durability.

PCB components

Component Sourcing:

As part of our one stop FPC service, we can assist with component sourcing. ensuring the availability of quality components for your flex PCB assembly. We work with trusted suppliers to procure components.

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Quick Turnaround:

We understand the importance of timely delivery. Our streamlined processes and efficient production capabilities. allow us to provide fast turnaround times without compromising on quality. We strive to meet your project deadlines.

Experienced Team

Experienced Team:

Our team of experienced engineers and technicians are well-versed . in flex PCB assembly techniques and industry best practices. They bring their expertise and attention to detail to every project. ensuring top-notch results.

Data Security Aerospace and Defense fpc

Data Security:

We value the confidentiality of your designs and intellectual property. Stringent measures are in place to safeguard your information. and ensure data security throughout the flex PCB assembly process.


flexible pcb board manufacturing process-design

Step1: Design Review

The first step is to review the design files and specifications of the flex PCB assembly. This includes checking the component placement, pad layouts. soldering requirements, and any special instructions.

Step2: Stencil Production

A stencil created based on the solder paste pattern required for the surface mount components. The stencil used to accurately deposit solder paste onto the flex PCB.

flexible pcb customization

Step3: Component Placement

Surface mount components picked and placed onto the flex PCB. using automated pick-and-place machines. The machines precisely position the components on the designated pads.

Step4: Solder Paste Application

Solder paste applied to the solder pads using the stencil. The solder paste contains a mixture of solder alloy and flux. which helps in the soldering process.

flex pcb assembly

Step5: Reflow Soldering

The flex PCB with the mounted components and solder paste passed through a reflow oven. The oven heats the assembly to a specific temperature, melting the solder paste. and forming solder joints between the components and the flex PCB.

Step6 : Inspection

After reflow soldering, the flex PCB assembly undergoes inspection. Automated optical inspection (AOI) or manual inspection methods employed. to check for solder joint quality, component placement accuracy, and any potential defects.

flexible PCB quality Control

Step7 : Rework and Repair

If any issues or defects during inspection, rework. and repair processes carried out to address the problems. This may involve manually reworking or replacing components. fixing solder joints, or making necessary adjustments.

Step 8 : Testing

Once the flex PCB assembly passes inspection and any rework completed. functional testing performed to ensure the assembled PCB. meets the required electrical and functional specifications.

flexible pcb board manufacturing process-testing
flexible pcb board manufacturing process-surface finishing

Step 9 : Final Assembly and Packaging:

The manufactured 2 layer flexible PCB undergoes testing and inspection. to ensure it meets the required specifications and quality standards. This includes electrical testing, impedance measurement, visual inspection. and possibly other specific tests depending on the application.

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