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Multi-Layer Flexible Layer PCB

Tailored for modern miniaturized and flexible electronic systems, Multi-Layer Flexible PCB offers unmatched design freedom and space efficiency compared to rigid multi-layer PCBs and single-layer flex circuits. Its thin, lightweight construction and ability to conform to 3D shapes enable seamless integration into curved, tight, or moving assemblies, significantly reducing device size and weight. Supporting customizable layer counts (commonly 4–12 layers, extendable to higher counts), trace geometries, and surface finishes (ENIG, immersion gold, HASL), it adapts to diverse functional requirements from low-power signal routing to high-speed data transmission. The multi-layer design eliminates bulky connectors, simplifies assembly, and lowers production costs. Widely used in smartphones, wearables, foldable devices, automotive sensors, medical equipment, and aerospace systems, it balances flexibility, performance, and cost-effectiveness for next-generation compact electronics. High quality fpc pcb board:with high speed transmission current stable,flexible,easy to install,good insulation. Flexible pcba board:export led pcb board,PI material,Electrolytic copper,ultra-thin thickness,can be bent at will. Double side flat cable flex pcb manufacturer:connection line+PI reinforcement+tin spraying process. SINGLE SIDE FLAT CABLE BOARD:Reinforcing material Pl, auxiliary material: conductive adhesive, shielding film,resistance to winding capacity of more than 150,000 times.

Classification:

Multi-Layer Flexible PCB

Keywords:

Multi-Layer Flexible PCB

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Process Parameter

Supporting customizable layer counts (commonly 4–12 layers, extendable to higher counts), trace geometries, and surface finishes (ENIG, immersion gold, HASL), it adapts to diverse functional requirements from low-power signal routing to high-speed data transmission. The multi-layer design eliminates bulky connectors, simplifies assembly, and lowers production costs. Widely used in smartphones, wearables, foldable devices, automotive sensors, medical equipment, and aerospace systems, it balances flexibility, performance, and cost-effectiveness for next-generation compact electronics.

Item	Flexible pcb
Max Layer	8L
Inner Layer Min Trace/Space	3/3mil
Out Layer Min Trace/Space	3.5/4mil
Inner Layer Max Copper	2oz
Out Layer Max Copper	2oz
Min Mechanical Drilling	0.1mm
Min Laser Drilling	0.1mm
Aspect Ratio(Mechanical Drilling)	10:01
Aspect Ratio(Laser Drilling)	/
Press Fit Hole Ttolerance	±0.05mm
PTH Tolerance	±0.075mm
NPTH Tolerance	±0.05mm
Countersink Tolerance	±0.15mm
Board Thickness	0.1-0.5mm
Board Thickness Tolerance(＜1.0mm)	±0.05mm
Board Thickness Tolerance(≥1.0mm)	/
Impedance Tolerance	Single-Ended：±5Ω(≤50Ω)，±10%(＞50Ω)
Impedance Tolerance	Differential：±5Ω(≤50Ω)，±10%(＞50Ω)
Min Board Size	5*10mm
Max Board Size	9*14inch
Contour Tolerance	±0.05mm
Min BGA	7mil
Min SMT	7*10mil
Surface Treatment	ENIG,Gold Finger,Immersion Silver,Immersion Tin,HASL(LF),OSP,ENEPIG,Flash Gold;Hard gold plating
Solder Mask	Green Solder Mask/Black PI/Yellow PI
Min Solder Mask Clearance	3mil
Min Solder Mask Dam	8mil
Legend	White,Black,Red,Yellow
Min Legend Width/Height	4/23mil
Strain Fillet Width	1.5±0.5mm
Bow & Twist	/

Areas of Application

Consumer Electronics

Aerospace

Telecommunications

Military Defense

Automotive Industry

Industrial Control

Why Choose Us ?

One-stop PCB PCBA service

Advanced equipment and technology

24 hours high quality online service

Fast delivery speed

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Packaging & Transportation

Static electricity bag+EV pearl cotton

Anti-static bubble bags + carton slot

Carton slot + bubble foam

Anti-static kraft bubble bags

Shipping Way

For small packages, we advise to choose by express (such as DHL, UPS, FedEx, and EMS by door to door service!)is the quickest way.
For heavy packages, the best solution is by seafreight.