ISO 9001 certified

ISO 9001 Certified

ISO 14001 certified

ISO 14001 Certified

RoHS certified

RoHS Compliance

Custom PCB Flex for Space-Saving Designs

Custom PCB Flex for Space-Saving Designs encompasses single-layer flex PCBs, multi-layer flex PCBs, and rigid-flex PCBs built on polyimide substrates. These boards enable 3D spatial routing, weight reduction, and connector elimination — ideal for medical devices, aerospace systems, wearables, automotive electronics, and compact consumer products demanding reliability and miniaturization.

Flex PCB
Single Layer Flex PCB
Rigid Flex PCB
Multilayer Rigid Flex PCB

Our Range of Products
Flex PCB

Flex PCB

  • Up to 8 layers for low-volume runs
  • 4mil laser drilling precision
  • Dual visual & optical quality control
Single Layer Flex PCB

Single Layer Flex PCB

  • 500M flex cycles without failure
  • Fine 2.5mil/2.5mil line width/space
  • Ultra-thin PCB thickness ≤0.4mm
Rigid Flex PCB

Rigid Flex PCB

  • Up to 20 layers, rigid & flex combined
  • ISO 9001 & 14001 certified manufacturing
  • 4mil laser drilling, ±10% impedance
Multilayer Rigid Flex PCB

Multilayer Rigid Flex PCB

  • IPC Class II quality on every board
  • Stack-up & quote within 8 hours
  • ENIG, OSP & lead-free HAL finishes

Frequently Asked Questions

What is flex in PCB?

Flex in PCB refers to the use of a flexible substrate — typically polyimide (PI) — instead of rigid FR4, allowing the board to bend, fold, or conform to three-dimensional shapes. Flex PCBs reduce weight, eliminate mechanical connectors, minimize assembly errors, and enable compact designs in space-constrained applications like wearables, medical devices, and aerospace electronics.

How much can a PCB flex?

What is the difference between a flex PCB and a rigid-flex PCB?

What base materials are used in flex PCBs?

How many layers can a custom flex PCB have?

Are FX PCB's flex PCBs RoHS compliant?

What industries use custom flex PCBs?

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

Industries We Serve

Medical Devices

Medical Devices

Flex PCBs used in hearing aids, defibrillators, pulse generators, and ultrasound equipment for reliable miniaturized interconnects.

Aerospace & Defense

Aerospace & Defense

High-reliability rigid-flex and flex PCBs powering radars, night vision systems, avionics, and defense electronics.

Automotive Electronics

Automotive Electronics

Flex PCBs enabling compact routing in dashboards, ABS systems, transport control modules, and EV battery management systems.

Consumer Electronics & Wearables

Consumer Electronics & Wearables

Single and multilayer flex PCBs enabling slim, lightweight designs in smartphones, smartwatches, cameras, and IoT devices.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

You might also like

Flex PCB | Custom Flexible PCB for Compact Electronic Devices

Custom Flexible PCB for Compact Electronic Devices

Custom flexible PCBs engineered for compact electronic devices, including single-layer, multi-layer, and rigid-flex configurations on polyimide substrates. Designed for applications in medical, aerospace, automotive, consumer electronics, and industrial sectors, these boards deliver superior flexibility, miniaturization, and reliability with up to 500 million flex cycles and fine line widths down to 2.5mil.
Multilayer Rigid Flex PCB | Advanced Rigid-Flex PCB for Space-Constrained Designs

Advanced Rigid-Flex PCB for Space-Constrained Designs

Advanced Rigid-Flex PCBs from SFX PCB combine the structural integrity of rigid boards with the adaptability of flexible circuits into a single, integrated solution. Ideal for aerospace, medical, automotive, and consumer electronics, these boards support multilayer configurations, tight impedance control, and miniaturized designs where space and reliability are mission-critical.
Flex PCB | Flex Circuit PCB for Compact Electronic Products

Flex Circuit PCB for Compact Electronic Products

Flex Circuit PCBs from SFX PCB offer lightweight, thin, and highly flexible circuit solutions for compact electronic products. Supporting single to multilayer configurations in polyimide substrates, these boards enable 3D design freedom, miniaturization, and reliable interconnection across aerospace, medical, automotive, consumer electronics, and industrial applications.

Why Electronics Engineers & OEMs Choose FX PCB

15+ Years of Flex PCB Expertise

Over 15 years manufacturing flex and rigid-flex PCBs for medical, aerospace, automotive, and consumer electronics industries worldwide.

ISO 9001 & ISO 13485 Certified Quality

Every board ships with 100% electrical testing, AOI, and flying probe verification — backed by ISO 9001, ISO 14001, and ISO 13485 certified facilities.

Prototype to Mass Production — One Supplier

Scale seamlessly from single prototypes to high-volume runs with free DFM analysis, 8-hour quoting, and 24-hour prototype assembly turnaround.

Request a Custom Flex PCB Quote Within 8 Hours

Submit your PCB files and our engineers will respond with stack-up recommendations and transparent pricing within 8 hours.

Contact Us Today

For immediate assistance, feel free to give us a direct call at (+1) 5103455000 You can also send us a quick email at info@sfxpcb.com