Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1990-12-21
1992-10-20
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428210, 428901, 428697, 428698, 428220, B32B 900
Patent
active
051569035
ABSTRACT:
A multilayer ceramic substrate having improved mechanical and electrical properties and suitable for use to form a hybrid integrated circuit and a process for the manufacture thereof. The multilayer ceramic substrate has at least one layer of a first conductor based on a refractory metal as an internal conductor layer and at least one layer of a Cu-based second conductor as a surface conductor layer, wherein the second conductor layer is connected to the first conductor layer through a metallic layer formed by coating with a metalloorganics paste containing one or more metals selected from the group consisting of Pt, Pd, Ni, Cu, Au, Rh, Ru, Re, Co, and Ir followed by firing in an inert or reducing atmosphere.
REFERENCES:
patent: 4340618 (1982-07-01), Fury et al.
patent: 4493856 (1985-01-01), Kumar et al.
patent: 4795670 (1989-01-01), Nishigaki et al.
Aoki Masataka
Kawaguchi Kohmei
Miyase Yoshiyuki
Nagasaka Takashi
Nomura Tohru
Lee Kam
Nippon Denso Co. Ltd.
Ryan Patrick J.
Sumitomo Metal Ceramics Inc.
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