Flexible Circuits,Flexible printed circuit boards, Flex PCB, FPC Manufacturer,Rigid-Flex PCB

RayMing Flexible Circuits

Flexible Circuits

 Flexible Circuits
Flexible circuits are made from a thin plastic
substrate of polyimide or polyester. The most
widely used material for flexible assemblies is
polyimide (poly im id) because it can withstand
the high temperatures required to solder components
without negative effects. Polyester circuits
shrivel up when exposed to those temperatures
and make them less appropriate for flexible
assemblies. The polyimide material is laminated
to conductive layers and insulating layers with
epoxy or acrylic based adhesives. The final product
is a very thin, typically .010”, overall thickness.
This is the characteristic that makes assembly
on flexible circuits more difficult than traditional
printed circuit boards which are 1/16”
thick and sturdy. The inherent nature of a flexible
circuit demands high attention to handling
during the assembly process. Whether hand soldering
or automated soldering, the circuits must
be supported for consistent results. The discussion
below will focus on the processes that will
make any flexible circuit assembly successful.
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