Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1991-05-02
1993-05-25
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428210, 428901, 228121, 257750, B32B 900
Patent
active
052138771
ABSTRACT:
A ceramic substrate is used for an electric or electronic circuit, and comprises a ceramic foundation and at least one conductive island formed of aluminum or an aluminum alloy and bonded to one surface of the ceramic foundation for providing conductive paths to circuit components connected thereto, wherein the aluminum or aluminum-alloy island is brazed to the ceramic foundation with a brazing alloy selected from the group consisting of aluminum-silicon alloy, aluminum-germanium alloy, aluminum-silicon-magnesium alloy and aluminum-silicon-germanium alloy so that thermal stress between the ceramic foundation and the conductive island is taken up.
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Kuromitsu Yoshirou
Tanaka Hirokazu
Toriumi Makoto
Umezawa Masao
Yoshida Hideaki
Lee Cathy
Mitsubishi Materials Corporation
Ryan Patrick J.
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