发明名称 |
Manufacturing method for monolithic piezoelectric part |
摘要 |
A monolithic piezoelectric part, capable of yielding a high piezoelectric d constant and suppressing reduction in reliability such as deterioration in insulation resistance, can be obtained by a method for manufacturing a monolithic piezoelectric part wherein a piezoelectric ceramic body is formed of a perovskite compound oxide expressed by the general formula of ABO 3 , and the molar quantity of the A site component, Pb, is reduced by 0.5 mol% to 5.0 mol% from that of the stoichiometric composition, ceramic raw materials are combined so that the average valence of the B site component is greater than quadrivalent which is the same as the stoichiometric composition to synthesize the ceramic powdered raw material, which is processed subsequently to fabricate a layered article, and the layered article is subjected to sintering processing within an atmosphere wherein the oxygen concentration is 5% or less but more than 0% by volume. |
申请公布号 |
EP1387417(B1) |
申请公布日期 |
2007.02.07 |
申请号 |
EP20030016741 |
申请日期 |
2003.07.22 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
HORIKAWA, KATSUHIRO;OGAWA, TOMOYUKI |
分类号 |
C04B35/49;C04B35/491;H01L41/08;H01L41/083;H01L41/187;H01L41/22;H01L41/273;H01L41/297;H01L41/39;H01L41/43 |
主分类号 |
C04B35/49 |
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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