When you make flexible pcb samples, and it with many cut-out inside, do you have the uneven issue for the cut-out areas?
We analyzed it and have the following reasons:
1, the cut-outs too much, making with a little difficulty;
2, make samples with simple tooling, so more or less will be a bit uneven phenomenon.
The solution to the problem is actually very simple, use laser cutting, or set up hard tooling. As it’s just the flexible pcb samples stage, in order to save costs, we recommend using a laser cutting, the cost is only increased by a little bit.