Rigid Flex Circuits

Rigid Flex circuits are characterized by having conductors on both
the flexible and rigid layers of the circuit. Plated thru holes extend between
the flexible and rigid sections and electrically connect multiple conductor layers.
Rigid Flex circuits are often used when components are mounted on both sides of the rigid section. This circuit construction is known as a Type 4 circuit as defined by IPC 6013 and should be distinguished from a flexible circuit with a rigid stiffener attached.

When to Use Rigid Flex

Rigid Flex is more costly than alternative flex designs so ideal applications require maximum usage of three dimensional space. Rigid Flex is often used in designs that can allow higher costs. Applications include medical, aerospace and military.
For a quick and thorough design evaluation, click here for a free on line Rigid Flex design consultation.