Electricity: conductors and insulators – Conduits – cables or conductors – Single duct conduits
Patent
1974-08-19
1976-05-25
Clay, Darrell L.
Electricity: conductors and insulators
Conduits, cables or conductors
Single duct conduits
29626, 174 52FP, 317101CC, 317101CM, 317101A, 357 74, 357 80, H05K 118
Patent
active
039595790
ABSTRACT:
An apertured wafer of semi-conductive material having at least one circuit thereon is mounted on a substrate having alternating layers of insulating and conductive material. Wiring connections between the circuit and the layers of conductive material extend through the aperture as well as over the periphery to shorten the length of the wiring connections.
REFERENCES:
patent: 3365620 (1968-01-01), Butler et al.
patent: 3374533 (1968-03-01), Burks et al.
patent: 3457541 (1969-07-01), Ransil et al.
patent: 3596140 (1971-07-01), Walsh
patent: 3619734 (1971-11-01), Assour et al.
patent: 3648131 (1972-03-01), Stuby
Clay Darrell L.
International Business Machines - Corporation
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