Stock material or miscellaneous articles – Composite – Of inorganic material
Patent
1990-02-15
1990-11-27
Pianalto, Bernard
Stock material or miscellaneous articles
Composite
Of inorganic material
427 38, 427 58, 4272552, 4272553, 4272557, 4273762, 427379, 4273977, 4273984, 427402, 428689, 428701, 428702, 428704, 428934, 428938, B32B 900
Patent
active
049735268
ABSTRACT:
The present invention relates to a method of forming a ceramic or ceramic-like coating on a substrate, especially electronic devices, as well as the substrate coated thereby. The method comprises coating said substrate with a solution comprising a solvent, hydrogen silsesquioxane resin and a modifying ceramic oxide precursor selected from the group consisting of tantalum oxide precursors, niobium oxide precursors, vanadium oxide precursors, phosphorous oxide precursors and boron oxide precursors. The solvent is then evaporated to thereby deposit a preceramic coating on the substrate. The preceramic coating is then ceramified by heating the to a temperature of between about 40.degree. C. and about 1000.degree. C. This coating, moreover, may be covered by additional passivation and barrier coatings.
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patent: 4753855 (1988-06-01), Haluska et al.
patent: 4756977 (1988-07-01), Haluska et al.
Dow Corning Corporation
Gobrogge Roger E.
Pianalto Bernard
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