Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1991-12-18
1993-10-26
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428209, 428901, B32B 900
Patent
active
052564690
ABSTRACT:
The present invention relates broadly to any type of multi-layered, co-fired, ceramic-on-metal circuit board, as a new article of manufacture.
The present invention is more specifically directed to various compositions of MgO-13 B.sub.2 O.sub.3 --SiO.sub.2 system glass-ceramics and compositions of such glass-ceramic and suitable fillers, which are suitable for use in the fabrication of multi-layered, co-fired, ceramic-on-metal circuit boards, in which the co-fired, multi-layered ceramic exhibits desirable electrical properties and a temperature coefficient of expansion which closely matches that of its co-fired metal base, although these compositions may have other uses.
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patent: 4291107 (1981-09-01), Barry et al.
patent: 4645552 (1987-02-01), Vitriol et al.
patent: 4952531 (1990-08-01), Cherukuri
patent: 5041695 (1991-08-01), Olenick et al.
patent: 5043222 (1991-08-01), Cherukuri
patent: 5044074 (1991-09-01), Hadwiger et al.
patent: 5047371 (1991-09-01), Cherukuri
Cherukuri Stayam C.
Onyshkevych Lubomyr S.
Prabhu Ashok N.
Thaler Barry J.
Coughlin Jr. Vincent J.
General Electric Company
Irlbeck Dennis H.
Lee Cathy
Ryan Patrick J.
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