High density flexible wiring board

Details High density flexible wiring board High density flexible wiring board

2007-02-01

2008-07-15

Paumen, Gary F. (Department: 2833)

Electrical connectors

Coupling part with actuating means urging contact to move...

Having open slot for receiving preformed panel circuit...

C439S495000, C439S067000

Reexamination Certificate

active

07399192

ABSTRACT:
A high density flexible wiring connection device comprises a flexible flat cable (FFC) having narrow-pitch conductors and a flat cable connector (FC connector) having a double-sided contact designed for narrow-pitch wiring and having upper and lower contact terminals. A supplementary wiring board having upper and lower wiring terminals is introduced to connect alternate ones and the other alternate ones of the narrow-pitch conductors of the FFC to alternate ones of the upper contact terminals and alternate ones of the lower contact terminals of the FC connector, respectively, thereby making the pitch of each of the upper and lower wiring terminals twice the narrow pitch of the FFC and the FC connector. The use of the supplementary wiring board to thus convert the wiring pitch makes it possible to prevent whiskers, even if formed on the contact terminals, from causing short-circuits between adjacent contact terminals and between adjacent wiring terminals.

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