Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1988-12-22
1992-11-17
Lesmes, George F.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
427123, 4271261, 4271262, 428210, 428698, 428699, 428901, 501 96, 501152, 501153, B32B 900, C04B 3558
Patent
active
051642468
ABSTRACT:
A highly thermoconductive ceramic substrate, which is characterized by having formed on a ceramic substrate an electroconductive coating of a mixture of tungsten and/or molybdenum with the nitride of a transition metal belonging to Group IVa of the Periodic Table of Elements. As the ceramic substrate in the present invention, a non-oxide type ceramic substrate is used because of satisfactory strength. The formation of the electroconductive coating consisted preponderantly of a mixture of tungsten and/or molybdenum with the nitride of a metal belonging to Group IVa of the Periodic Table Elements is accomplished, for example, by preparing a metallizing composition in the form of a paste or solution containing a metal salt of tungstic acid or molybdic acid and a transition metal of Group IVa or a compound thereof, applying the metallizing composition on the ceramic substrate, heating the resulting composite, then firing the composite.
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IEEE, 1985, pp. 26-31; "High Performance Aluminum Nitride Substrate by Tape Casting Technology"; Werdecker et al.
Ishizuka Hiroyuki
Sayano Akio
Sugiura Yasuyuki
Tanaka Shun-ichiro
Brown Christopher
Kabushiki Kaisha Toshiba
Lesmes George F.
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