Flexible circuit having flexing section of reduced stiffness, an

Details Flexible circuit having flexing section of reduced stiffness, an Flexible circuit having flexing section of reduced stiffness, an

1991-09-11

1993-06-15

Ryan, Patrick J.

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428901, 428457, 361398, 174250, B32B 900

Patent

active

052196402

ABSTRACT:
A flexible circuit is presented having a flexing (cyclic bending) section of lower stiffness than adjacent parts of the circuit. The lower stiffness in the flexing section is achieved by reducing the thickness of the flexing section, either by omitting or removing some or all of the dielectric material of the flexible circuit in the flexing section, or by replacing conventional dielectric material in the flexing section with a polymer of lower modulus of elasticity.

REFERENCES:
patent: 4812213 (1989-03-01), Barton et al.
patent: 4945029 (1990-07-01), Bronnenberg

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