FPCFAB coordinates flexible PCB manufacturing for custom FPC projects for compact electronics, battery systems, sensors, medical devices, automotive modules, industrial equipment, displays, and wearable products.
We review Gerber files, drawings, stack-up requirements, materials, bend areas, stiffeners, surface finishes, and production needs before quotation. Support is available for prototypes, engineering samples, and small-to-medium batch projects, subject to design and material review.
Flexible PCB Structures We Support
Each FPC project is reviewed as a complete mechanical and electrical construction. Layer count alone does not define flexibility, thickness, connector fit, or production risk.
Single-Sided FPC
Thin flexible circuits for simple interconnection, sensors, displays, control modules, and space-limited wiring applications.
Double-Sided and Multilayer FPC
Flexible circuits requiring plated interconnection, higher routing density, shielding, controlled stack-up, or more complex electrical functions.
FPC With Stiffeners
Local PI, FR4, stainless-steel, or aluminum reinforcement for connectors, component areas, mounting points, and controlled insertion thickness.
FPC With Coverlay or Adhesive Backing
Coverlay protection, defined pad openings, and optional adhesive backing for mounting or positioning inside the final product.
Materials and Process Options
The final selection depends on bending conditions, assembly temperature, finished thickness, connector requirements, reliability expectations, and material availability.
| Base Material | Polyimide-based flexible circuit materials, with adhesive-based or adhesiveless constructions reviewed according to the application. |
|---|---|
| Copper Foil | Rolled annealed or electrodeposited copper options reviewed against bend conditions, copper thickness, plating, and cost. |
| Protective Layer | Coverlay and suitable protective-coating options based on pad geometry, opening density, assembly, and flexibility requirements. |
| Stiffeners | PI, FR4, stainless steel, or aluminum reinforcement for connector, component, mounting, and mechanical support areas. |
| Surface Finish | ENIG, OSP, immersion tin, connector contact finishes, and other options subject to technical review. |
| Additional Features | Adhesive backing, gold-finger areas, shielding, customized stack-up, controlled thickness, and application-specific review. |
| Inspection | Electrical testing before shipment, with additional inspection or documentation requirements confirmed during quotation. |
DFM Review Before Quotation
Our review is intended to identify obvious manufacturing and assembly risks before prototype or batch production.
- Gerber, drill, outline, and fabrication-drawing consistency
- Layer structure, material, copper, and finished-thickness requirements
- Line width, spacing, annular rings, and local copper distribution
- Bend areas, trace direction, via location, and stiffener transitions
- Coverlay openings, connector areas, and exposed-contact requirements
- Surface finish, panelization, testing, and packaging requirements
Typical Project Workflow
Send Project Data
Share Gerber files, drawings, stack-up, quantities, application details, and target lead time.
Engineering Review
We review construction, material, bend regions, stiffeners, finish, tolerances, and missing information.
Quotation Confirmation
The proposed scope, technical assumptions, quantity, testing, and delivery requirements are confirmed before production.
Prototype or Batch Support
Production proceeds according to the confirmed files and requirements, with assembly coordination available when needed.
Applications We Support
Battery and BMS
Flexible interconnection for battery packs, sensing, balancing, and compact module layouts.
Medical and Wearable Devices
Space-saving flexible circuits for compact products requiring controlled routing and mechanical integration.
Automotive and Industrial Electronics
FPC projects for modules, sensors, controls, displays, and constrained internal connections.
Displays, LEDs, Sensors, and Connectors
Flexible routing for display modules, touch products, lighting, sensor assemblies, and cable-replacement applications.
Files Needed for an Accurate FPC Quote
- Gerber files and drill data
- Fabrication drawing and final outline
- Layer stack-up and material requirements
- Base and finished copper requirements
- Finished thickness and connector-area thickness
- Surface finish and exposed-contact requirements
- Bend radius or flex-cycle information where applicable
- Quantity, inspection, packaging, and target delivery date
What Affects an FPC Quotation and Schedule?
An FPC quotation is not based on board size and quantity alone. The design package, construction, material choices, tolerances, testing, and delivery requirements all affect engineering review and production planning. Exact cost and schedule are confirmed only after the available files have been reviewed.
Construction and Materials
Layer count, copper type, coverlay, adhesive system, stiffener material, finished thickness, and surface finish influence material selection and process planning.
Geometry and Tolerances
Fine traces, dense coverlay openings, narrow outlines, controlled connector thickness, small bend areas, and tight dimensional tolerances may require additional review.
Quantity and Panel Planning
Prototype, engineering-sample, and batch quantities can require different panel layouts, tooling decisions, inspection scopes, and packaging methods.
Testing and Delivery Requirements
Electrical testing, dimensional reports, special packing, staged delivery, and urgent targets should be stated before quotation so the scope can be evaluated correctly.
When Gerber Files Are Missing
Photos and measurements can support an initial discussion, but they normally do not contain enough information to reproduce an FPC reliably. Trace connections, copper geometry, material construction, plated features, and hidden details may not be visible in photographs.
- Send clear, straight-on photographs of both sides with a scale reference.
- Provide the overall outline, connector dimensions, pin count, pitch, and exposed-contact details.
- Include pin-to-pin continuity or a verified connection map whenever possible.
- Describe the installed position, bend direction, available space, and mechanical constraints.
- Share any part number, drawing, damaged sample, or related technical document available.
- Confirm that the product is customer-owned or that reproduction is properly authorized.
An initial feasibility review can then determine whether file reconstruction, sample analysis, a new design, or a conventional manufacturing quotation is the appropriate next step. Production feasibility and pricing should not be assumed from photographs alone.
Common Information Gaps That Delay Review
| Outline Not Defined | A screenshot or product photo does not replace a dimensioned outline. Critical lengths, widths, radii, slots, and connector positions should be identified. |
|---|---|
| Thickness Not Separated | Overall FPC thickness and connector-area thickness may be different when stiffeners are used. Both should be stated where they affect fit. |
| Bend Conditions Missing | Indicate whether the FPC is bent once during installation or repeatedly flexed in operation, together with the expected direction and available bend space. |
| Contact Details Unclear | Pin count, pitch, contact side, insertion direction, and mating-connector information are important for connector compatibility. |
| Quantity or Delivery Target Missing | Provide prototype and expected batch quantities separately, plus the date or project stage that drives the request. |
FPC Manufacturing Questions
Can you quote from a PDF or photograph?
It may be possible to discuss feasibility, but a production quotation normally requires manufacturing data or an agreed reconstruction scope. Missing information must be identified before cost and schedule can be confirmed.
Can prototype and batch quantities be reviewed together?
Yes. List each required quantity separately so prototype needs and later production expectations can be considered during the same review.
Should application details be shared?
Yes. Installation method, bending, temperature exposure, mating parts, assembly process, and reliability expectations help prevent material or construction assumptions.
What happens when the design is not final?
Send the latest files and identify open questions. The project can first be reviewed for missing data, manufacturability risks, and decisions that must be confirmed before quotation.
Request a Flexible PCB Manufacturing Review
Send your available Gerber files, drawings, samples, stack-up information, and quantities. If the design is not final, share the electrical, mechanical, and application requirements available today.
Request a Quote Need FPC Assembly?