The most important feature of a flexible printed circuit board (FPCB) compared to a typical printed circuit board (PCB) is its thinness and flexibility. Since the cost of FPCB is much higher than that of PCB, if it is not necessary, the general manufacturer will not design FPCB in its products, and because of the high cost of FPCB, we must pay special attention to its limitations and precautions when designing.
This information was provided by the FPCB/Flex Cable manufacturer. At that time, there was only a paper. I spent some time putting it and drawing it here, so that I can also refer to the friends in need. I personally feel that the design requirements of these soft boards can be used by many designers. Some of these requirements are closely related to the production process capability, and some are related to reliability and quality.
Chinese and English explanation:
Cover Film: Insulation Cover
Through Hole: Perforation
PlaTIng Through Hole (PTH): Plated Perforation
Land Patterns: Pad Circuits
1. Through Hole, Cover Film, and Dimensional Relationship in Soft Board Design
2. Suggestions for wire shape
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