Design Guidance

2022-10-27 BEST

Flex Circuits Capability

We list out our usual material and technical specification of Flexible Circuits & flex printed circuits (FPC) in the below table. Also, you can view the facility tolerance of circuits.

If you would like some special material, tighter tolerance or other requirements of flexible PCB(flex circuit board), you can Contact our staff directly, we are at your service at any time.

Parameter (Default Unit: mm)

Polyimide (PI)

PET

Laminate Thickness (mil)

1/2, 1, 2, 3, 4, 5

1, 2, 3

Copper Foil (OZ)

0.018,0.035,0.070

0.035,0.070

Min Pattern width/Space (mil)

2/2

3/3

Min. Drilled Hole Size

Non-Plated Thru

0.20mm ( .008" ); Tolerance +/-.05mm( .002")

Plated Thru

0.25mm ( .008" ); Tolerance +/-.076mm( .003")

Outlines Dimension (Normall)

+/- 0.15mm

+/- 0.15mm

Outlines Dimension (Special)

+/- 0.05mm

+/- 0.05mm

Peeling Strength(180°Direction)

>1.2kgf / cm

>1.2kgf / cm

Solder Heat Resistance

280℃ / 10secs

280℃ / 10secs

Surface Treatment

Ni/Au

2~5μm

2~5μm

Au Plating

0.025 ~0.1μm

0.025 ~0.1μm

Sn/Pb (Lead Free)

3~ 20μm

3~ 20μm

Sn-Cu Plating (Lead Free)

3~ 5μm

3~ 5μm

Tin Plating (Pure Sn)

5 ~ 8μm

5 ~ 8μm

Bending flexibility

Meet to IPC Criterion

Chemical Resistance

Meet to IPC Criterion