1. Laminated structure
2. Production process
Flexible board cutting → drilling → etching → AOI → pressing cover film → pressing → drilling → immersion copper and panel plating → outer layer etching (alkaline etching) → AOI → solder mask and characters → immersion gold → opening routing → mechanical depth control → electrical test → rigid board routing → flexible board routing → FQC → packaging
3. Manufacturing difficulties
Flexible board Air-gap structure, multilayer flex board high TG material lamination, long and short gold fingers, selective electro-gold + immersion gold, mechanically controlled deep opening.
RCY PCB is a professional PCB manufacturer with more than 20 years of professional experience leading process capability in the field of Rigid PCB, Flex PCB, Rigid-flex PCB, etc. If you have any PCB/PCBA demands, feel free to contact us.