| 发明名称 | Piezoelectric actuator and drive device | ||
| 摘要 | A piezoelectric actuator that includes a piezoelectric substrate, first and second electrodes, and a conductive layer. The first and second electrodes are configured to apply a voltage to the piezoelectric substrate. The conductive layer is formed on the first electrode. The conductive layer is made of a metal or an alloy different in color from the second electrode. | ||
| 申请公布号 | US9299908(B2) | 申请公布日期 | 2016.03.29 |
| 申请号 | US201213675415 | 申请日期 | 2012.11.13 |
| 申请人 | MURATA MANUFACTURING CO., LTD. | 发明人 | Nakamura Kimitoshi;Nakatani Hiroshi;Nishikawa Masanaga;Kitagawa Sachio |
| 分类号 | H01L41/00;H01L41/047;G11B5/48;H01L41/09 | 主分类号 | H01L41/00 |
| 代理机构 | Arent Fox LLP | 代理人 | Arent Fox LLP |
| 主权项 | 1. A piezoelectric actuator comprising: a piezoelectric substrate; first and second electrodes configured to apply a voltage to the piezoelectric substrate; and a first conductive layer on at least a part of the first electrode and made of a metal or an alloy different in color from at least one of the first electrode and the second electrode, wherein the first conductive layer is lower in solder wettability than the first electrode. | ||
| 地址 | Nagaokakyo-Shi, Kyoto-Fu JP | ||