Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1996-08-29
1998-03-10
Thibodeau, Paul J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428432, 428433, 428545, 428615, 428450, 428901, B32B 300, B32B 1500, B32B 906, B22F 300
Patent
active
057259380
ABSTRACT:
The present invention provides improved techniques for metallizing ceramic substrates. The method comprises providing a ceramic substrate and depositing a layer of reducible material on the ceramic substrate. The layer of reducible material includes a reducible ceramic such as copper oxide. The ceramic substrate having the layer of reducible material disposed thereon is heated and the reducible material is contacted with a reducing agent to create a conductive region. The conductive region is either a metallized region formed by reduction, or it is a conductive ceramic formed through surface reduction. The present invention further provides a metallized ceramic substrate. The metallized layer comprises ceramic regions having at least one constituent in common with the ceramic substrate. The ceramic substrate and the ceramic regions of the metallized layer are sintered to each other such that the metallized region is interspersed between the sintered ceramic regions. In this fashion, the metal is firmly held to the ceramic substrate due to the presence of the bonded ceramic within the metallized layer.
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Jin Sung-ho
Johnson, Jr. David Wilfred
Law Henry Hon
Thomson, Jr. John
Tiefel Thomas Henry
Books, Esq. Glen E.
Lam Cathy F.
Lucent Technologies - Inc.
Thibodeau Paul J.
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