Rigid-flexible printed circuits boards
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The literal meaning of "rigid-flex" is combination the advantages of both flexible and rigid boards. It's seen as two-in-one circuit is interconnected through plated thru holes. Rigid flex circuits enable higher component density while fitting into limited and odd shaped spaces.
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Rigid-flex printed circuits boards consists of multiple flexible circuit inner layers selectively attached together using an epoxy pre-preg bonding film, similar to a mul-tilayer flexible circuit. Rigid flex circuits have been used in the military and aerospace industries for more than 20 years. In most rigid flex circuit boards.
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