Design for Rigid Flex PCB

Capability

Layer

Flex-rigid PCB

2-20

Flex PCB

1-10

Copper thickness

Based

1/3OZ-2OZ

Finished

1/2OZ-3OZ

Board thickness

Flex-rigid PCB

0.3-6.0mm

Flex PCB

0.08-1.0mm

Maximum board size

Flex-rigid PCB

200*500mm

Flex PCB

200*800mm

Stiffeners

PI thickness

0.05-0.5mm

FR4 thickness

0.1-3.0mm

Steel thickness

0.1-1.0mm

Impedance control

tolerance

10%

Line width /space

Minimum ring size

0.15mm

Minimum line width/space

0.075/0.075mm

Hole

Size

0.15-6.4mm

HDI

Countersink

2+n+2

 
Design

Design of rigid flex PCB will be difficult than the typical PCBs for these boards are always needs to be designed with 3D structure. By being able to design in three dimensions rigid flex designers can twist, fold and roll the flexible board substrates to achieve their desired shape for the final application's package.

NexPCB will give a tech review and confirm, provide the design for manufacture suggestions to customer for their products.

Example

Flex layer

8

Width/space

0.1/0.1mm

Rigid layer

10

Min. hole

0.2mm

Thickness

2.3mm

Surface finished

ENIG

Specification

1+8+1 , plated countersink