Substrate for an electrical circuit system and a circuit system

Details Substrate for an electrical circuit system and a circuit system Substrate for an electrical circuit system and a circuit system

1990-07-11

1991-10-08

Tolin, Gerald P.

Electricity: electrical systems and devices

Electrostatic capacitors

Fixed capacitor

174258, 361403, 428901, H05K 720

Patent

active

050559672

ABSTRACT:
A substrate is provided for mounting semiconductor devices and comprises an electrically conductive circuit layer, a base layer of an aluminum metal material, and an electrically insulating hard coating dielectric layer of amorphous aluminum oxide which is directly adherent to the base layer for mounting the electrically conductive circuit layer thereon.

REFERENCES:
patent: 3537907 (1970-11-01), Wilson
patent: 3702427 (1972-11-01), Learn
patent: 4495378 (1985-01-01), Potzer
patent: 4574879 (1986-03-01), DeGrea
patent: 4835061 (1989-03-01), Ohta
patent: 4943468 (1990-06-01), Gordon
"Hard-Annodizing of Aluminum by Low Voltage", M. Lerner & M. Morse, Sanford Process Corp., Natick Mass, 1980, pp. 1-9.
"Aluminum Alloy", Materials Handbook, 11th Edition, 1977, McGraw-Hill, pp. 37.

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