0.05 mm
Min trace/space
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CircuFlex · Medical device applications
CircuFlex for Medical Devices
Flexible printed circuits engineered for medical-grade reliability — hearing aids, wearable sensors, surgical instruments, and implant-adjacent electronics. Fine-trace capability, lot-level traceability, and documentation discipline aligned to medical-device qualification standards.
1–6
Layer build-up
ISO 13485-ready
Documentation discipline
100%
Electrical test coverage
Overview
Medical-grade FPC — documented, traceable, repeatable.
Medical device manufacturers need flexible circuits that match three demands at once: fine geometry for miniaturised form factors, rigorous process documentation for qualification audits, and lot-level traceability for post-market surveillance. CircuFlex is built around those demands. Fine trace/space (0.05 mm), laser drilling to 0.05 mm, and a quality system aligned to ISO 13485-style documentation discipline.
- Miniaturised form factors — 0.05 mm minimum trace/space for compact medical electronics
- Lot-level traceability — material CoC, process records, electrical test results retained per lot
- Documentation discipline aligned to ISO 13485-style audit requirements
- 100% electrical open/short testing before release
- Medical-compatible surface finishes: Au, Sn, Ni, OSP
- Polyimide base films for high-reliability medical applications
- 8D response workflow for post-market CAPA
Medical capability
Built for audit, built for uptime.
Every feature listed has a medical-qualification rationale — fine geometry for miniaturisation, documentation for audit, traceability for CAPA response.
FEATURE 01
Fine feature geometry
0.05 mm trace/space and 0.05 mm laser drilling — supports the compact layouts typical of hearing aids, wearable sensors, and implant-adjacent interconnects.
FEATURE 02
Polyimide reliability
Polyimide (PI) base film as the default medical substrate — thermally stable, biocompatibility-grade variants available, proven in long-service medical applications.
FEATURE 03
Lot-level traceability
Material certificates of compliance, lot-linked process records, and electrical test results retained per lot — ready for post-market surveillance and CAPA response.
FEATURE 04
Documentation discipline
Audit file, control plan, sample data book, reliability gate, 8D response — the evidence package aligned to ISO 13485-style qualification.
FEATURE 05
Surface finish flexibility
Gold (Au), tin (Sn), nickel (Ni), and OSP surface finishes — match solderability, longevity, and biocompatibility to application.
FEATURE 06
100% electrical test
Open/short testing before release — supports the zero-escape expectation of medical-device assembly.
Technical specifications
Key parameters.
Standard capability envelope. Alternative configurations available on request — send your design brief and we’ll respond with the matching process route.
| Minimum trace/space | 0.05 mm |
|---|---|
| Minimum laser drill | 0.05 mm |
| Minimum CNC drill | 0.20 mm |
| Build-up | 1 to 6 layers |
| Maximum panel size | 600 × 500 mm |
| Board thickness | 0.065 – 0.28 mm |
| Film thickness | 0.0125 – 0.10 mm |
| Copper foil thickness | 0.009 – 0.10 mm |
| Base films | Polyimide (PI) · Polyester |
| Surface finishes | Cu · Ni · Au · Sn · OSP |
| Profile methods | Punching · CNC routing · Laser processing |
| Electrical test | 100% open/short before release |
Applications
Where medical-grade FPC delivers.
HRG
Hearing aids
Compact in-ear FPC assemblies where size and reliability are non-negotiable.
SRG
Surgical instruments
Single-use and re-usable surgical device interconnects with documented traceability.
WRB
Wearable sensors
ECG patches, glucose monitors, and continuous-monitoring wearables.
IMP
Implant-adjacent electronics
FPC constructions supporting implantable and body-adjacent device programmes.
DIA
Diagnostic instruments
Bench-top and handheld diagnostic equipment FPC interconnects.
DEL
Drug delivery devices
Electronic-assisted drug delivery and infusion device flex circuits.
Medical-grade FPC enquiry
Request a medical FPC review →