Flexible circuit having termination features and method of makin

Details Flexible circuit having termination features and method of makin Flexible circuit having termination features and method of makin

1987-04-10

1989-03-28

Abrams, Neil

Electrical connectors

Including or for use with tape cable

With mating connection region formed by bared cable

29846, 439498, 439930, H01R 907

Patent

active

048159905

ABSTRACT:
A flexible circuit having termination features incorporated as an integral part thereof and a method of making the same is presented. In accordance with the manufacturing process of the present invention, the end portion of a flexible circuit of standard construction (i.e., conductive traces sandwiched between a flexible base substrate and a flexible cover film) is folded back on itself, frequently with a spacer captured in the fold, and adhesively laminated together. This laminated assembly has a thickness equal to that required for formation of reliable connector pins. Next, a small section of this folded end portion has at least the outer non-conductive cover film removed, preferably by laser techniques, to expose a plurality of connector pins or fingers. The connector fingers will have the desired thickness, width and shape to allow for direct insertion into a mating component (i.e., through-holes on a rigid or flexible circuit board; or into a receptacle such as a female connector). The fingers are preferably solder coated to allow the flexible circuit of the present invention to be attached using common solder reflow techniques.

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