发明名称 |
Piezoelectric element and method of manufacturing the same |
摘要 |
A piezoelectric element includes an internal electrode embedded in a piezoelectric ceramic body so as to extend in a longitudinal direction of the body. First to third surface electrodes are formed on upper and lower surfaces of the piezoelectric ceramic body in respective first to third portions along the longitudinal direction. Connecting electrodes are formed to connect the first to third surface electrodes with each other. The first to third portions are polarized so that the second portion is polarized opposite to the polarization of the first and third portions, and regions located above and below the internal electrode are polarized in opposite directions in the respective ones of the first to third portions.
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申请公布号 |
US5914556(A) |
申请公布日期 |
1999.06.22 |
申请号 |
US19950460660 |
申请日期 |
1995.06.02 |
申请人 |
MURATA MANUFACTURING CO., LTD. |
发明人 |
TABOTA, JUN;UNAMI, TOSHIHIKO;INOUE, JIRO |
分类号 |
G01P15/09;H01L41/113;(IPC1-7):H01L41/08 |
主分类号 |
G01P15/09 |
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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