Ceramic composition and ceramic circuit board

Details Ceramic composition and ceramic circuit board Ceramic composition and ceramic circuit board

1993-03-09

1994-08-30

Group, Karl

Stock material or miscellaneous articles

Structurally defined web or sheet

Discontinuous or differential coating, impregnation or bond

428426, 428901, 501 32, 501 65, 501 66, 174250, 361748, B32B 300, C03C 100

Patent

active

053426746

ABSTRACT:
A ceramic composition comprising 55-70 vol % of a borosilicate glass consisting of 65-88 wt % of SiO.sub.2, 5-25 wt % of B.sub.2 O.sub.3, 1-5 wt % of one or more of Li.sub.2 O, K.sub.2 O and Na.sub.2 O, and 0-5 wt % of Al.sub.2 O.sub.3, 5-30 vol % of alumina as filler, 5-35 vol % of cordierite and 0-20 vol % of quartz glass is provided for a ceramic circuit board for an electronic device such as an electronic computer.

REFERENCES:
patent: 4642148 (1987-02-01), Kurihara
patent: 4654095 (1987-03-01), Steinberg
patent: 4764233 (1988-08-01), Ogihara et al.
patent: 4939021 (1990-07-01), Aoki et al.
patent: 5024975 (1991-06-01), Hartmann
patent: 5079194 (1992-01-01), Jean et al.

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