Flex Beyond Convention

High-density flexible interconnects for space-constrained electronics
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What Is a Customized FPC?

A customized flexible printed circuit (FPC) is the core interconnect between your product's components and its end user. It is a precision-engineered component that combines ultra-fine conductive traces, flexible bending, and reliable solderability to connect boards, displays, sensors, and input modules in compact, dynamic spaces.For OEMs, this component is a strategic asset. It enables thinner, lighter, and freely shaped designs, reduces assembly complexity, and withstands the demands of the target environment.

Customized FPC Types & Applications

As a professional FPC manufacturer, we provide tailored flexible circuit solutions to meet specific performance, reliability, and design requirements.

Standard FPC

Suitable for compact devices requiring flexible routing, such as cameras, displays, hinges, and wearables.

Rigid-Flex PCB

Suitable for equipment combining rigid signal stability with flexible space-saving assembly in a single board.

SMD FPC Assembly

Suitable for applications needing components mounted directly on the flex, reducing board count and interconnect length.

17 Years of Focus. Bending to Perfection.

Custom flexible circuit boards for multiple industries—fine pitch, light weight and reliable in every flex.

VR Glasses FPC Cables Challenge

Challenge:VR headset interconnects must run the full length of a narrow frame — display, sensors and structural mounts all share one slim cable, so every millimetre of width and weight matters.

Solution:Ultra-thin FPC cable assemblies with fine-pitch conductors, precisely positioned bracket tabs and reinforced connector tails, custom-routed to your housing layout for a stable, lightweight connection.

Wearable Watch FPC

Challenge:Smartwatches and wearables must survive sweat, drops and daily bending inside a tiny curved space, while keeping battery and sensor lines thin and reliable.

Solution:Compact FPC with dense routing, gold-plated connectors and custom tail shapes, built for repeated flex cycles and a slim, dependable fit.

Camera Flash FPC

Challenge:Flash and camera modules must place the LED, lens and signal lines within a few millimetres, with stable current paths and no crosstalk.

Solution:High-density FPC with precise pad placement and gold plating for reliable contact — fine traces keep the optical layout clean and the current path safe.

SIM Card Holder FPC

Challenge:The SIM slot sits at the edge of the phone chassis, so the FPC must carry signals over a long, narrow tail while staying thin enough for the tray mechanism.

Solution:Long-tail FPC with a stiffened connector end, durable gold contacts and a slim profile that fits the tray space without stress.

Phone Case Backlight FPC

Challenge:Case backlight boards must cover the full case area with a dense dot matrix, stay thin and flexible, and light evenly without hot spots.

Solution:Large-area dot-matrix FPC with uniform trace spacing, controlled conductor thickness for even brightness, and a flexible base that bends with the case.

Drone FPC Cable Assemblies

Challenge:Drone cable sets span the frame, carrying power and control signals through tight bends and constant vibration — connections must stay stable in the air.

Solution:Multi-branch FPC cable sets with reinforced connector tails, fine-pitch conductors and custom lengths that keep every channel stable through flight loads.

FPC Component Layering Diagram

  • 01

    AD Pressure SensitiveAdhesive

    High-tack, optical-grade pressure-sensitive adhesive layer for precision lamination and structural bonding

  • 02

    Black PI Coverlay (Top)

    Matte Black Polyimide Insulation Protective Film for Light Shielding and Solder Mask Protection

  • 03

    FCCL Copper Layer 1

    Flexible micron-scale copper foil circuit substrate, fine signal transmission layer

  • 04

    FCCL Copper Layer 2

    Ultra-thin, flexible copper foil substrate, conductive interconnects, and electrical shielding layer

  • 05

    Black PI Coverlay (Bottom)

    Matte black insulating film on the underside, providing bend resistance and insulation protection for the bottom

  • 06

    SUS Stainless SteelStiffener

    Precision-drawn stainless steel reinforcement plates to improve the flatness of gold fingers and connectors

  • 07

    FR4 Glass Epoxy Stiffener

    High-Rigidity Epoxy-Reinforced Fiberglass Panels: Impact Resistance and Mechanical Support

Advantages of One-Stop Customised PFC

Compared with standard components, our customized control panels offer significant advantages, including:

Easy to Clean & Hygienic

Fully sealed, no dead corners. Blocks oil, dust, and disinfectants. Ideal for medical and food applications.

Slim, Lightweight & Compact

Ultra-thin structure fits easily into space-constrained portable devices.

Tactile Feedback with Metal Domes

Physical pressure response ensures accurate operation, even with heavy protective gloves.

Highly Customizable

Matte or gloss finishes, precise Pantone/RAL color matching, and integrated logos or display windows.

Cost-Effective Solution

A budget-friendly alternative to touch modules, reducing large-scale assembly costs.

Are you ready to customise a PFC specifically for your device?

KeypadOne’s engineering team will help evaluate your structural, material, printing, adhesive, and assembly options.