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Flexible PCBs

Flexible PCB

What is Flexible PCB

Flexible circuit boards, also known as flex circuit, flex pcbs, or FPC, are designed for saving room and improving the flexibility to meet a smaller and higher density mounting design. It also helps to reduce the assembly process and enhance reliability. In brief, FPC is the only solution to ensure the miniaturization and moving of electronic products.

Capabilities in Manufacturing Flexible PCBs

Victory PCB is a professional pcb manufacturer that can produce high-quality flexible PCB products. Check our PCB manufacturing capabilities in the following table:
ProjectsContentTechnological Capability
Cutting MaterialLayer1-8L
Min. Finished PCB size480mm*380mm
Max. Finished PCB size5mm*8mm
Thickness0.05mm - 0.3mm
Base MaterialCopper Thickness1/3oz, 1/2oz, 1oz, 2oz
PI Film0.5mil, 0.7mil, 0.8mil, 1mil, 2mil
DrillingMin. Via Hole (Laser  Drilling)0.08mm
Min. Blind Hole (Laser Drilling)0.05mm
Machine Drilling0.15mm - 6.30mm
SoldermaskMin. Bridge Width0.1mm
Min. Spacing Between Pad to Opening0.05mm
Min. Opening0.3mm
SilkscreenMin. Height0.8mm
Min. Width0.8mm
Surface FinishPlating Gold0.025 - 0.2um
Immersion Gold0.025 - 0.125um
Plating Tin3 - 10um
Immersion Tin0.6 - 1.2um
OSP0.4 - 0.8um

Benefits of Flexible PCBs

Flexible printed circuit boards offer many potential benefits so that flexible PCBs are now being used widely to replace traditional FR4 PCB in various different applications.

  • Reduce weight and space: Thickness can be as thin as .004 inches (.10mm) in total.

  • Reduce assembly costs: Flex circuits can be tested prior to assembly of components.

  • High tensile strength: can be significantly warped/deformed without breakage.

  • High Heat Dissipation: Owing to the compact designs and denser device populations, shorter thermal paths are created. This helps dissipate the heat faster than a rigid circuit.

  • Streamlined Designs Made Possible: Flexible circuit board technologies have helped improve circuit geometries. The components can be easily surface mounted onto the boards, thus simplifying the overall design.

Applications for Flex Printed Circuit Boards

The continuous miniaturization of devices has driven printed circuit boards to become smaller and denser and require more capabilities. Applications we supply mini flexible PCBs include:

  • Consumer Electronics

  • Medical devices - wearables

  • Industrial sensors

  • Motion systems

  • Semiconductor test and manufacturing devices

  • Semiconductor packaging

  • Fuel pumps

Flexible PCB FAQs

  • 1. What is a flexible PCB?

    Flexible PCB, also known as flex prints or flex circuits, is a special type of circuit board that you can bend into the desired shape. They are widely used for high-density and high-temperature applications.

  • 2. What is the advantage of flexible PCB?

    In many applications, flexible PCBs can eliminate the need (and cost) of connectors and cables, improving connection reliability and reducing assembly time, assembly costs and overall device dimensions.

  • 3. What is rigid PCB vs flexible PCB?

    As the names suggest, a rigid PCB is a circuit board built on a rigid base layer that cannot bend, while a flexible PCB, also called a flex circuit, is built on a flexible base capable of bending, twisting and folding.

  • 4. Why are Flex PCBs so expensive?

    The manufacturing process of Flexible PCB is too lengthy, complex and needs a special environment, which makes it too expensive to design.

  • 5. What are the disadvantages of rigid flex PCB?

    The production process of Flex-rigid PCB boards are numerous, the production is difficult, the yield is low, the pcb materials and manpower wasted more. Therefore, the price is relatively expensive and the production cycle is relatively long.

  • 6. What are the characteristics of flexible PCB?

    Flexible Printed Circuit (FPC) a highly flexible and excellent flexible printed circuit board made of polyimide or polyester film. It has the characteristics of high wiring density, light weight, thin thickness and good bending property.

  • 7. What material is used for flex PCB?

    Leading conducting material of flexible PCB is copper or copper foil and sometimes alloy is also used including aluminum, nickel, gold and silver etc. Apart from conduction, conductor layer should be flexibility resistant.

  • 8. What is the minimum thickness of flexible PCB?

    PCB boards come in various thicknesses. A standard two-layer board has a minimum thickness of 14 mils and a maximum of 32 mils.

Get custom flex printed circuit boards that authenticates your business products and makes it an element for quick turnaround at a first go! At VictoryPCB, we work with each customer to ensure they get the boards they need, the way they need them. Contact us today for a quote for your specifications.


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