High density multi-layer circuit arrangement

Details High density multi-layer circuit arrangement High density multi-layer circuit arrangement

1984-08-06

1986-07-01

Tolin, G. P.

Electricity: conductors and insulators

Conduits, cables or conductors

Single duct conduits

361410, 361414, H05K 114

Patent

active

045981663

ABSTRACT:
An arrangement for constructing multi-layered printed circuits characterized by a first layer having top and bottom surfaces with the top surface including a plurality of parallel conductors divided into at least two conductor groups by a transversely oriented break across each conductor. The bottom surface further includes a plurality of parallel conductors arranged perpendicular to the conductors on the top surface and is also divided into at least two conductor groups by a transversely oriented break across each conductor. A plurality of holes extend through the first layer with, each hole adjacent to an intersecting conductor pair. A second layer including top and bottom surfaces and a plurality of plated-through holes has conductor pennants extending from selected holes in a first direction on the top surface and a second opposite direction on the bottom surface. A plurality of first and second layers are sandwiched together, with each hole of each layer in registration with the other and each conductor pennant contacting a respective first layer conductor. Conductor segments printed on the second layer top and bottom surfaces interconnect selected conductors between respective conductor groups. Additionally, two or more second layers are interconnected by via pins extending through the arrangement.

REFERENCES:
patent: 2932772 (1960-04-01), Bowman
patent: 2963626 (1960-12-01), DuVal, Jr.
patent: 3904934 (1975-09-01), Martin
patent: 4047132 (1977-09-01), Krajewski
patent: 4150421 (1979-04-01), Nishihara
patent: 4434321 (1984-02-01), Betts

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