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The rigid board not fit to solder onto flex PCB. The SMT yield rate will be an issue.
If you still want to solder them onto flex PCB, below facts need to be considered.
- The flex PCB, there should be some strengthen board on the backside of soldering rigid PCB area. Its size should be bigger than the rigid board edge.
- The reflowing process, the flex board should be fixed (covered) by some reflow pallet(tooling).
- The depanelization process, the rib position should be not close to rigid board area (the space bigger than 5mm from strengthen board side to rib position).
Although here we give these suggestion, we still do not recommend to solder rigid board onto flex board.
Thank you very much Gyan!
I didn't knew that soldering a rigid pcb on a flex-one was so problematic.
I will try in a different way!
Thank you for your kind help!