ISO 9001 certified

ISO 9001 Certified

ISO 14001 certified

ISO 14001 Certified

RoHS certified

RoHS Compliance

Ultra-Thin Flexible PCBs — Lightweight & Durable

Ultra-thin flexible PCBs from SFX PCB offer lightweight, durable circuit solutions for demanding applications. Featuring polyimide substrates, high-density interconnects, and up to 30-layer configurations, these boards serve aerospace, medical, automotive, and consumer electronics industries with ISO-certified quality and turnkey assembly support.

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

Our Range of Products
Multilayer Rigid Flex PCB

Multilayer Rigid Flex PCB

  • Rigid-flex hybrid up to 20 layers supported
  • IPC Class II quality control on every board
  • ENIG, OSP & lead-free HAL surface finishes
Single Layer Flex PCB

Single Layer Flex PCB

  • Survives up to 500 million flex cycles
  • Ultra-fine 2.5mil lines for miniaturized designs
  • Polyimide base ensures superior thermal resilience
Flex PCB

Flex PCB

  • Up to 8 layers with 4mil laser drilling precision
  • 5 surface coating options for diverse applications
  • A-class complexity with ≤0.3mm ultra-thin boards
Multilayer Flex PCB

Multilayer Flex PCB

  • Ultra-thin ≤0.3mm flex PCB, up to 8 layers
  • ISO-certified with 15+ years of expertise
  • Fine 4mil/4mil trace for high-density routing
Rigid Flex PCB

Rigid Flex PCB

  • Up to 20 layers with 4mil laser drilling
  • ISO 9001 & 14001 certified manufacturing
  • Bendable, foldable & rollable 3D design freedom

Frequently Asked Questions

What is an ultra-thin flexible PCB and how does it differ from a rigid PCB?

An ultra-thin flexible PCB uses a polyimide (PI) substrate instead of rigid FR4, allowing it to bend, fold, and twist in three-dimensional space without failure. With PCB thicknesses as low as 0.05mm, these boards reduce weight and size significantly, eliminate mechanical connectors, and enable dynamic routing in compact assemblies — capabilities that rigid PCBs cannot offer.

What materials are used in ultra-thin flexible PCBs?

How many layers can ultra-thin flexible PCBs support?

What industries use ultra-thin flexible PCBs?

Are SFX PCB's flexible PCBs RoHS and IPC compliant?

What is the minimum order quantity and lead time for flexible PCBs?

Does SFX PCB offer turnkey assembly (PCBA) for flexible 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

Flexible PCBs power pacemakers, hearing aids, ultrasound devices, and wearable health monitors requiring miniaturized, reliable circuits.

Aerospace & Defense

Aerospace & Defense

High-reliability flexible PCBs used in avionics, GPS systems, radar, night vision, and satellite communication equipment.

Automotive & Transportation

Automotive & Transportation

Flex PCBs integrated into dashboards, ABS systems, engine control modules, and EV battery management systems for compact routing.

Consumer Electronics

Consumer Electronics

Lightweight, bendable flex PCBs enabling ultra-slim smartphones, wearables, IoT devices, tablets, and digital cameras.

Didn't find what you're looking for?

Talk to our experts for custom solutions and tailored guidance.

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Why Electronics Manufacturers Choose SFX PCB

15+ Years of PCB Expertise

Over 15 years of deep-rooted experience in flexible PCB fabrication and turnkey assembly, serving aerospace, medical, and consumer electronics industries worldwide.

ISO-Certified Quality Assurance

ISO 9001, ISO 14001, and ISO 13485 certified facilities with 100% electrical testing, AOI, X-ray inspection, and IPC-A-610 Class 2/3 compliance on every order.

Prototype to Mass Production

Seamlessly scale from rapid prototypes to high-volume production without switching suppliers, backed by free DFM analysis and quotes delivered within 24 hours.

Get a Custom Flexible PCB Quote Within 24 Hours

Submit your PCB files and requirements. Our engineers will review your design and respond with pricing and stack-up details within 24 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.