Flex PCB Factory Tour at King Kredie
Shenzhen Adventure Day 12Tweet
While we were doing the Engineering Query at King Kredie, we also got a special bonus tour: Flex PCB Manufacturing.
Flex PCB is kind of the future – as devices get smaller, a thick-old-green PCB is no longer practical unless it is also a structural element. Flex PCB’s, traditionally used more often as a custom connector, can be populated with components as well so are a really cool technique to experiment with.
The process is pretty different from traditional PCB etching.
You start with a big roll of copper foil.
Punch out a pattern using a big press.
The die looks like this:
Then you laminate it. The laminate sheet has also been punch cut appropriately.
Then you (optionally) silkscreen print on
Later on, these will need to be cut out/depanelized.