Mutlilayer glass ceramic substrate and method of fabricating the

Details Mutlilayer glass ceramic substrate and method of fabricating the Mutlilayer glass ceramic substrate and method of fabricating the

1994-04-07

1996-04-09

Ryan, Patrick J.

Stock material or miscellaneous articles

Composite

Of quartz or glass

428195, 428210, 428545, 428632, B32B 1706

Patent

active

055060587

ABSTRACT:
A multilayer glass ceramic substrate includes a glass ceramic layer and a plurality of conductive layers laminated via the glass ceramic layer. The glass ceramic layer is composed of inorganic compound consisting of aluminum oxide, borosilicate glass, anorthite crystal and celsian crystal wherein the aluminum oxide is contained in the range of 12 to 59.6 weight percent, the borosilicate glass is contained in the range of 18 to 69.6 weight percent, the anorthite crystal is contained in the range of 1 to 40 weight percent and the celsian crystal is contained in the range of 1 to 5 weight percent so that the total is 100 weight percent.

REFERENCES:
patent: 4490429 (1984-12-01), Tosaki et al.
patent: 5185215 (1993-02-01), Adams, Jr. et al.
patent: 5212121 (1993-05-01), Omata et al.
By S. Iwanaga et al., "Glass-ceramic composite substrates", Chemical Abstracts, Jul. 13, 1992, vol. 117, No. 2, p. 339.
By M. Nawa et al., "High-strength glass-ceramics for printed circuit boards", Chemical Abstracts, May 6, 1991, vol. 114, No. 18.

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