发明名称 Trapezoidal piezoelectric/electrostrictive element and production method thereof
摘要 A piezoelectric/electrostrictive element(10) including a substantially trapezoidal laminate having narrower and wider surfaces lying substantially in parallel to each other and first and second surfaces opposed to each other between the narrower and wider surfaces. The first and second surfaces are inclined at given angles to one of the narrower and wider surfaces. The laminate includes piezoelectric/electrostrictive layers( 11A,11B,11C,11D) and interposed internal electrodes(12A, 12B, 12C), the internal electrodes(12A,12B,12C) being broken up into a first and a second group, each of the first group internal electrodes(12B) lying over one of the second group internal electrodes(12A, 12C) through one of the piezoelectric/electrostrictive layers(11B,11C). A first external electrode(14) is formed on the first surface(f4) of the laminate and is coupled to the first group internal electrode(12B). A second external electrode(15) is formed on the second surface(f3) of the laminate and is coupled to the second group internal electrodes(12A, 12C). <IMAGE>
申请公布号 EP1283553(B1) 申请公布日期 2008.05.14
申请号 EP20020255305 申请日期 2002.07.30
申请人 NGK INSULATORS, LTD. 发明人 NAMERIKAWA, MASAHIKO;SHIBATA, KAZUYOSHI;IWAMOTO, MASAKI
分类号 H01L41/083;H01L41/09;H01L41/22;H01L41/273;H01L41/313;H01L41/314 主分类号 H01L41/083
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