Multilayer wiring structure

Electricity: conductors and insulators – Conduits – cables or conductors – Combined

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Details

174117PC, 361410, 361416, H05K 114, H05K 116, H01R 402

Patent

active

044265484

ABSTRACT:
A multilayer wiring structure comprising a plurality of groups of patterns each having a multiplicity of wirings formed on the opposite sides of an intervening insulation film. The intervening insulation film is formed with a void exposed to both an upper pattern of a multiplicity of wirings and a lower pattern of a multiplicity of wirings, the upper and lower patterns being formed on and beneath the intervening insulation film and arranged to form a matrix. The void extends longitudinally across one of the patterns, and the upper and lower patterns are connected together through the void at crossing points of the matrix.

REFERENCES:
patent: 782391 (1905-02-01), Hanson
patent: 2558008 (1951-06-01), Smith
patent: 3499098 (1970-03-01), McGahey
patent: 3725744 (1973-04-01), Reed
patent: 3824433 (1974-07-01), Newton
Breuninger; K. et al.; Printed Circuit Crossovers by a Thin-Film-Thick-Film Technique; Feinwerk Technik & Mess Technik; vol. 84, No. 7, pp. 321-322; Oct.-Nov. 1976.

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