Flexible printed circuits (FPC) are made with a photolithographic technology.
single layer FPC with Black color and immersion gold for keyboard
Type: 1layers FPC
Base materials: 35um CU/20um ADH/25um PI
Cover lay: 25um ADH/25um PI black film on both side
Surface treatment: ENIG
Flexible printed circuits (FPC) are made with a photolithographic technology. An alternative way of making flexible foil circuits or flexible flat cables (FFCs) is laminating very thin (0.07 mm) copper strips in between two layers of PET. These PET layers, typically 0.05 mm thick, are coated with an adhesive which is thermosetting, and will be activated during the lamination process. FPCs and FFCs have several advantages in many applications:
Tightly assembled electronic packages, where electrical connections are required in 3 axes, such as cameras (static application).
Electrical connections where the assembly is required to flex during its normal use, such as folding cell phones (dynamic application).
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