Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...
Patent
1994-04-29
1996-11-05
Brunsman, David
Compositions: ceramic
Ceramic compositions
Titanate, zirconate, stannate, niobate, or tantalate or...
361319, 361320, 3613211, C04B 3546, H01G 422, H01G 420, H01G 406
Patent
active
055717616
ABSTRACT:
A ceramic substrate comprises having two or more functional portions separated from each other, by providing a first region comprising a first dielectric porcelain having an insulating layer at the crystal grain boundaries of a semiconductor porcelain containing a semiconductivizing agent and a second region comprising a second dielectric porcelain with different dielectric constant from the first dielectric porcelain through the difference in amount or kind of the semiconductivizing agent from the first region.
Kato Keiichi
Kumagai Motoo
Brunsman David
Canon Kabushiki Kaisha
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