flex pcb metal finsih

ATTEN: STARIC @ 1823 asked Dec 16,2019
0

Hi,

We are interested in the options for flex PCB metal finish.

Using the ENIG or Hard Gold options:
1) what is the thickness of gold that can be deposited?
2) Is it possible to achieve a 100um thickness of gold on a flex PCB?
3) What other materials are present in the two options: ENIG and Hard Gold? Is it possible to make the material pure gold?

Thank you,
Michal

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