Method of making electrical connections between opposing metal f

Details Method of making electrical connections between opposing metal f Method of making electrical connections between opposing metal f

1983-11-16

1985-09-17

Schofer, Joseph L.

Metal fusion bonding

Process

Using only pressure

228115, 228179, 228 31, 228 443, 228 447, 29849, 156250, 156261, 156313, 428139, B23K 2012

Patent

active

045415595

ABSTRACT:
A method of making electrical connections between metal foils laminated to opposing surfaces of a flexible insulating layer, such as may be configured with spiral patterns in the respective metal foils to form inductive-capacitive circuits useful as detectable markers in RF antipilferage systems, and wherein an electrical connection is provided between the opposing foils by first extruding the laminate to shear the insulating layer and to contact the opposing metal foils in the vicinity of the sheared insulator layer and by subsequently forcing the extrusion back into a substantially planar relationship relative to the remainder of the laminate.

REFERENCES:
patent: 2894321 (1959-07-01), Dubilier
patent: 3618843 (1971-11-01), Hayes et al.
patent: 3913219 (1975-10-01), Lichtblau
patent: 4319708 (1982-03-01), Lomerson

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