Multilayer glass ceramic substrate and process for producing the

Details Multilayer glass ceramic substrate and process for producing the Multilayer glass ceramic substrate and process for producing the

1997-04-30

1998-05-19

Speer, Timothy

Stock material or miscellaneous articles

Composite

Of metal

428201, 428209, 428210, 428472, 428689, 428697, 428699, 428701, 428702, 428901, B32B 1504

Patent

active

057533768

ABSTRACT:
A multilayer glass ceramic substrate having a plurality of conductor layers each laminated through a glass ceramic layer. The glass ceramic layer has a composition comprising of alumina, borosilicate magnesium glass and cordierite crystal produced by chemical reaction between alumina and borosilicate magnesium glass. The content of alumina is 12 to 59.6 wt %, the content of borosilicate magnesium glass is 18 to 69.6 wt %, the content of the cordierite crystal is 1 to 50 wt % and the sum of components is 100 wt %. The multilayer glass ceramic substrate shows improved mechanical strength.

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patent: 4624896 (1986-11-01), Watanabe
patent: 4764233 (1988-08-01), Ogihara
patent: 4861646 (1989-08-01), Barringer
patent: 5204289 (1993-04-01), Moh
patent: 5283210 (1994-02-01), Kata
patent: 5294477 (1994-03-01), Kanba
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