Over-Molding Plastic over Flex Circuits

摘要

QUESTION: I HAVE an application for a wearable device. I would like to encapsulate the flexible circuit in plastic. Is it possible to over-mold plastic over a flex circuit? If so, are there special design considerations I would need to incorporate? Answer: The response is way too much to cover in my allotted space, so it will have to be a "two-parter." Here goes for part 1! Yes, you can over-mold plastic over a flexible circuit, but multiple factors have to be in alignment for the application to function as intended. These factors are: 1 Flex circuit design (conductor routing and material stackup). 2 Final configuration (Will the final form factor support the intended application?). 3 Mold design. 4 Molding material. 5 Molding procedures.