Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1987-08-13
1989-08-29
Weston, Caleb
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
156 89, 428241, 428325, 428426, 501 2, 501 4, 501 5, 501 10, 501 11, B32B 1800
Patent
active
048616460
ABSTRACT:
Glass-ceramic packages for integrated circuits containing multi-layer, interconnected thick film wiring patterns are obtained by co-sintering a glass-ceramic composite and copper, silver, palladium, gold, based conductors at temperatures not exceeding about 1000.degree. C. The dielectric systems include composites of borosilicate glasses and crystalline fillers which are fabricated by either mixing glass frit and the filler or by a sol-gel coating process. The package is fabricated using a tape specifically designed for clean binder burnout in a reducing atmosphere at low temperatures and also for superior mechanical and thermal properties. Metallization, applied by the thick film screening technique, utilized herein has glass-ceramic bonding agents designed to promote adhesion yet maintain the desired electrical properties and post-processing characteristics.
REFERENCES:
patent: 4621066 (1986-11-01), Nishigaki
patent: 4642148 (1987-02-01), Kurihara et al.
Barringer Eric A.
Gruber William C.
Hodge James D.
Kelley Donald J.
Lieberman Sheldon I.
Ceramics Process Systems Corp.
Ruben Bradley N.
Weston Caleb
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