Flex PCB capabilities

Ultra-thin flexible circuits engineered for dynamic bending, compact wearable electronics, medical devices, camera modules, and space-constrained interconnects.

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Flex PCB specifications

Two capability tiers for repeatable, high-yield volume and an extended prototype window for pushing the limits. Need something beyond these? Ask us - we build to spec.

Layers & dimensions

Feature / Parameter Mass production Prototype (extended)
Layer count 1-8 layers 1-12 layers
Max. panel size 600 x 770 mm 600 x 770 mm
Min. board thickness 0.3 mm 0.1 mm

Lines & spacing

Feature / Parameter Mass production Prototype (extended)
Min. line width 3 mil (0.075 mm) 3 mil (0.075 mm)
Min. line space 3 mil (0.075 mm) 3 mil (0.075 mm)

Electrical & reliability

Feature / Parameter Mass production Prototype (extended)
Controlled impedance +/-10% +/-7%
Thermal shock 288C x 3 x 10 sec 288C x 3 x 10 sec
Warp & twist 0.7% 0.7%

Have a rigid board to build?

Send your Gerbers and stackup - our engineers confirm manufacturability against this spec and reply with a quote, usually within 24 hours, plus a free DFM review.

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Advanced & high-end rigid processes

When your design pushes the envelope, our advanced process toolkit keeps it manufacturable and reliable.

Material selection

Polyimide stackups, adhesive systems, and thickness choices tuned for the required bend profile.

Flex-ready

Dynamic flexing

Repeated bend cycles validated for motion-driven assemblies and moving interconnects.

Cycle tested

Stiffeners & ZIF zones

Reinforced connector areas for robust assembly and repeatable insertion performance.

Assembly support

EMI shielding

Shielding film and grounded structures for sensitive mixed-signal flex assemblies.

Noise control

Controlled impedance

Trace geometry and stackup tuned for predictable signal behavior through flex regions.

Signal integrity

Final validation

Visual, electrical, and mechanical checks before release to production.

Quality gate

Standards we build & test to

Every board is fabricated, inspected and documented to recognized industry standards.

IPC-6012

Rigid board - Class 2 & 3

IPC-A-600

Acceptability of boards

ISO 9001

Quality management

UL

Listed 94V-0

RoHS / REACH

EU compliant

Traceability

Lot & date control

J-STD-001

Soldering-ready

ISO 13485

Medical-capable

IATF 16949

Automotive-capable

AS9100

Aerospace-capable

Related Solutions

Explore selected solution pages related to this manufacturing capability.

Industrial & Power Electronics

Industrial & Power Electronics

Engineered to withstand massive electrical currents, thermal stress, and continuous mechanical vibration. XinshunPCB delivers IPC Class 3 heavy copper boards, high-thermal metal-core solutions, and turnkey SMT assemblies for grid-scale energy storage, industrial robotics, motor drives, and solar inverters.

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Medical Equipment

Medical Equipment

Traceable, high-reliability PCB fabrication and PCBA assembly for diagnostic devices, monitors, analyzers, and other healthcare equipment requiring stable performance and strict quality control.

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Metal-Core PCB

Metal-Core PCB

Thermal-intensive PCB fabrication and assembly for LED power, high-current, automotive lighting, and industrial electronics requiring efficient heat dissipation.

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Capabilities & Manufacturing Limits FAQ

Technical answers to common engineering questions regarding this capability, inspection flow, and delivery expectations.

Q1 What quality standards guide XinshunPCB production? +

Our work is guided by disciplined process control, customer requirements, and the quality systems needed for reliable PCB and PCBA delivery.

Q2 How do you keep lead times stable during supply fluctuations? +

We protect lead times with planning, sourcing visibility, approved alternates, and early communication when constrained parts need attention.

Q3 Why is traceability important in PCB manufacturing? +

Traceability links materials, process steps, and inspections so quality events can be found quickly and root causes can be isolated with confidence.

Q4 How do you balance cost and performance in stackup selection? +

We compare signal, thermal, and reliability needs against material and layer cost, then choose the simplest stackup that still meets the spec.

Q5 What should a production-ready PCB design review include? +

A production-ready review should check stackup, spacing, drill data, polarity, assembly fit, test access, and any special reliability requirements.

Q6 How do you control warpage on large or thin PCBs? +

We manage warpage with balanced stackups, careful lamination, panel planning, and process rules that reduce mechanical stress.

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