Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Hideki Yoshikawa0
Hiroshi Nonoue0
Kenichiro Wakisaka0
Date of Patent
June 12, 2007
0Patent Application Number
110855640
Date Filed
March 22, 2005
0Patent Primary Examiner
Patent abstract
A multilayer ceramic substrate which is obtained by firing multilayers of ceramic green sheets each having a dielectric layer, made of a glass-ceramic material comprising a mixture of alumina and a glass containing at least Si and Ca, and an electrode layer made of Ag and formed on the dielectric layer. The dielectric layer after firing includes anorthite (CaAl2Si2O8) crystals having a grain size of up to 84 nm.
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