发明名称 |
Manufacturing method of piezoelectric vibrator unit, manufacturing method of liquid jet head, piezoelectric vibrator unit, and liquid jet head |
摘要 |
Common internal electrodes 27 and segment internal electrodes 28 are laminated alternately with a piezoelectric material 29 between and a common external electrode 30 and a segment external electrode 31 are provided on the surface, forming a drive vibrator 24. A free end part 24a of the drive vibrator 24 is formed with an active region L and can be expanded and contracted in the length direction of the vibrator. A piezoelectric material 29 of the outermost layer in the free end part 24a can be operated based on the potential difference between the external and internal electrodes and a portion of the active region L in the external electrode is used as a trimming portion with an effective length x varied by trimming.
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申请公布号 |
US7725995(B2) |
申请公布日期 |
2010.06.01 |
申请号 |
US20050219726 |
申请日期 |
2005.09.07 |
申请人 |
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发明人 |
KITAHARA TSUYOSHI |
分类号 |
H01L41/22;B23Q17/00;G01M99/00;H01L41/00;H02N2/00;H04R17/00 |
主分类号 |
H01L41/22 |
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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