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Flexible PCB Manufacturing Services

Flexible circuits replace bulky cables and let electronics bend, fold, and fit where rigid boards cannot. MOZPCB builds single-sided, double-sided, and multilayer flex PCBs with engineering review on every quote.

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Service overview

Flexible PCBs (FPCs) are built on polyimide films instead of rigid laminate, which makes material selection—film thickness, adhesive versus adhesiveless copper, coverlay system—the first driver of both reliability and cost. We confirm those choices against your bend geometry before quoting.

Like our rigid-flex work, every flex quote includes a review of whether your bends are static (fold once at installation) or dynamic (repeated motion), since dynamic applications need thinner copper, adhesiveless constructions, and neutral-axis routing.

Typical programs range from a simple single-layer jumper replacing a wire harness to multilayer flex with controlled impedance for camera modules and display interconnects.

What we offer

  • Single-sided, double-sided, and multilayer flexible circuits
  • Adhesiveless polyimide constructions for tight bends and dynamic flexing
  • Coverlay processing with defined openings, dams, and windowing
  • Stiffeners in polyimide, FR-4, and stainless steel per your drawings
  • ZIF connector tails with controlled thickness and gold plating
  • EMI shielding films and silver paste shielding when specified
  • Flex PCB assembly including fixturing and carrier panels for SMT
  • DFM feedback on trace routing near bends, pad anchors, and tear stops

Technical capabilities

  • Polyimide film thicknesses commonly 12.5, 25, and 50 micron, per stackup review
  • Copper weights from 1/3 oz rolled-annealed copper for dynamic bends up to 2 oz
  • Minimum bend radius guidance: roughly 6–10x thickness for static, 100x for dynamic bends
  • Impedance-controlled flex layers when materials and stackup support the target
  • Selective plating, gold fingers, and button plating subject to design review
  • Panelization with tab routing suited to downstream flex assembly

Common applications

  • Wearables, hearables, and fitness devices with curved enclosures
  • Camera modules, displays, and antenna interconnects in compact devices
  • Medical sensors, catheter and probe electronics, and patient-worn monitors
  • Battery management and folded interconnects in dense assemblies
  • Automotive interior electronics where vibration rules out connectors

How the process works

  1. 01

    Requirements intake

    Share Gerber, BOM, drawings, quantities, and any reliability or compliance notes.

  2. 02

    Technical alignment

    We confirm materials, finishes, assembly flow, and test expectations with you.

  3. 03

    Production & inspection

    Manufacturing and assembly follow the agreed traveler with documented checks.

  4. 04

    Delivery

    Packing, labeling, and shipment according to your logistics instructions.

In our factory

  • PCB copper plating line
    Plating line
  • Panelized PCBs after fabrication
    Panelized boards
  • Laminate and core material storage
    Laminate store

Related services

Rigid-Flex PCB Manufacturing Services PCB Assembly Services View PCB capabilities Request a quote

FAQ

When should I use a flex PCB instead of a rigid board with cables?
Flex wins when space, weight, or reliability is constrained: it removes connectors and hand-assembled harnesses, survives vibration better, and fits curved or folding enclosures. If the interconnect never moves and space is generous, a rigid board with a cable may stay cheaper.
What is the difference between adhesive and adhesiveless flex materials?
Adhesive-based laminates bond copper to polyimide with an acrylic or epoxy layer; adhesiveless laminates deposit or cast copper directly on the film. Adhesiveless constructions are thinner, handle tighter bend radii, and perform better in dynamic flexing and high-temperature assembly, at somewhat higher material cost.
Do flex PCBs support fine-pitch component assembly?
Yes, with the right stiffener and fixturing plan. Components need a stiffened, flat region for reliable SMT placement and reflow. Tell us which areas carry components so we can align stiffener placement and panel design.
How do you specify bend requirements in an RFQ?
State the bend location, bend radius, whether the bend is static or dynamic, and the expected number of flex cycles. A mechanical drawing or even a photo of the folded assembly helps us confirm the construction before quoting.
Can flex circuits include shielding for EMI-sensitive signals?
Yes. Options include shielding films, crosshatched copper ground layers, and silver paste shielding. Each adds thickness and affects bend radius, so flag EMI requirements early.

Get started

Ready for the next step?

Send your project files and requirements. We will review stackup, assembly, and test needs, then respond with a clear quotation path.

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