Custom 4 Layer Rigid-Flex Hearing Aid PCB | PI FPC for Hearing Aid OEM
This 4-layer rigid-flex PCB is specially customized for hearing aid equipment, adopting polyimide (PI) base material + FR4 rigid reinforcement. Copper thickness 18μm, ENIG surface treatment, yellow coverlay, green solder mask. Support blind vias, fine line 0.04mm, flying probe electrical test. Ultra-thin stackup, stable bending performance, compact structure for limited hearing aid internal space. We provide OEM PCB for audiology medical products.
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