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Flex rigid Board semi flex PCB Black Soldermask| YMSPCB

Short Description:

Our flex and rigid-flex circuit board solutions are custom designed for many top tier OEMs. Manufactured with dependable reliability, our flexible circuits are built to withstand the rigors of aerospace, medical, and military applications. As a high reliability replacement for wire and wire harness assemblies, flex circuits provide a significant cost savings with no reduction in performance.


Layers: 4L Semi-Flex PCB


Min.Hole Size:0.2mm

Minimum Line Width/Clearance:0.1mm/0.1mm

Base Material:FR4+Cover layer+Flex soldermask


Aspect Ratio:5 : 1

Surface treatment:ENIG

Speciality: Semi-Flex PCB with bend angle 180°

Applications:Consumer electronics

Product Detail


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What is Semi-Flex PCB?

The most traditional manufacturing process of semi-flex PCB is adopting the bending FR-4 materials and making PCB according to the traditional rigid PCB manufacturing process, and then using the deep milling technology to thin the areas that need to be bended so that it has a certain degree of flexibility, so as to meet the requirements of assembly bending connection.

SEMI-FLEX length Calculator: (2 x Π x bend radius) x (bend angle/360°)

For example, bending 5 times over an angle of 180 degree with a radius   of 5mm requires a minimum length of the semi-flex part of 15,7mm


 YMS Semi-Flex PCB manufacturing capabilities:

YMS Semi-Flex PCB manufacturing capabilities overview
Feature capabilities
Layer Count 2-20L,with 1 – 2 conductive layers in the flexible section
Rigid-Flex Thickness 0.5mm-5.0mm
PCB thickness in flex section 0.15-0.8mm ± 0.05mm
copper Thickness 1/4OZ-10OZ
Minimum line Width and Space 0.05mm/0.05mm(2mil/2mil)
Stiffeners Stainless steel,PI, FR4 ,Aluminum etc.
Material FR4,RA copper, HTE copper, adhesive,Bondply,coverlayer, flex soldermask
Min mechanical Drilled Size 0.15mm(6mil)
Min laser Holes Size: 0.075mm(3mil)  
Surface Finish Suitable Microwave/RF PCB urface finishes: Electroless Nickel, Immersion Gold, ENEPIG, Lead free HASL,Immersion Silver.etc.
Solder Mask Green, Red, Yellow, Blue, White, Black, Purple, Matte Black, Matte green.etc.
Covrelay (Flex Part) Yellow Coverlay, WhiteCoverlay,Black Coverlay


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  • What is a rigid flex board?

    The rigid-flex board is a flexible circuit board(FPC) and a rigid circuit board (PCB), which are combined together according to the relevant process requirements through pressing and other processes in the PCB proofing to form a circuit board with FPC characteristics and PCB characteristics.

    What is difference between rigid and flexible boards?

    As the names suggest, a rigid PCB is a circuit board built on a rigid base layer that cannot bend, while a flexible PCB, also called a flex circuit, is built on a flexible base capable of bending, twisting and folding.

    Where are rigid flex PCBs used?

    You’ll find them in commercial, industrial and military applications. From digital cameras to cell phones to smart devices, they serve them all. Especially in the medical industry for developing pacemakers for their weight reduction, space, and flexible capabilities.

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