发明名称 |
Ceramic substrate circuit substrate |
摘要 |
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.
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申请公布号 |
US5571761(A) |
申请公布日期 |
1996.11.05 |
申请号 |
US19940235240 |
申请日期 |
1994.04.29 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
KUMAGAI, MOTOO;KATO, KEIICHI |
分类号 |
C04B35/465;H01G4/12;H01L23/498;H01L23/538;H05K1/00;H05K1/03;H05K1/16;(IPC1-7):C04B35/46;H01G4/22;H01G4/20;H01G4/06 |
主分类号 |
C04B35/465 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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