Stock material or miscellaneous articles – Structurally defined web or sheet – Discontinuous or differential coating – impregnation or bond
Patent
1994-03-24
1996-07-09
Ryan, Patrick J.
Stock material or miscellaneous articles
Structurally defined web or sheet
Discontinuous or differential coating, impregnation or bond
428901, 428402, 428206, 428210, 361748, B32B 900
Patent
active
055343317
ABSTRACT:
A method in which a multi-layered ceramic circuit board made of a hybrid laminate consisting of green sheets containing hollow silica and green sheets containing no hollow silica is manufactured without failures occurring during the firing of the laminate. By incorporating quartz glass into a first ceramic material containing hollow silica to replace part of the hollow silica with quartz glass, the compositions of the first ceramic material and a second ceramic material containing no hollow silica are controlled so that the difference between the percentages of shrinkage on firing of the green sheets formed of the first and second ceramic materials is within 1%.
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Aoki Shigenori
Hida Masaharu
Kamezaki Hiroshi
Yokouchi Kishio
Fujitsu Limited
Jewik Patrick R.
Ryan Patrick J.
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