- 专利标题: Manufacturing Method Of Piezoelectric Element, Piezoelectric Element, And Liquid Droplet Dispensing Head
-
申请号: US18309864申请日: 2023-05-01
-
公开(公告)号: US20230354711A1公开(公告)日: 2023-11-02
- 发明人: Yasuhiro ITAYAMA , Yasuhiro HORIBA , Masahiro TAKEUCHI
- 申请人: SEIKO EPSON CORPORATION
- 申请人地址: JP Tokyo
- 专利权人: SEIKO EPSON CORPORATION
- 当前专利权人: SEIKO EPSON CORPORATION
- 当前专利权人地址: JP Tokyo
- 优先权: JP 22075790 2022.05.02
- 主分类号: H10N30/00
- IPC分类号: H10N30/00 ; H10N30/20 ; H10N30/87 ; H10N30/06 ; H10N30/079 ; H10N30/082 ; B41J2/14 ; B41J2/16
摘要:
A manufacturing method of a piezoelectric element includes: forming a first conductive film on a vibration plate as a substrate; etching a first conductive film; forming a second conductive film on the first conductive film; etching the second conductive film to form a first electrode having a step region as a step formed by the second conductive film and the first conductive film at ends thereof; forming a seed layer as an orientation control layer covering the first electrode by a liquid phase method; forming a piezoelectric film on the seed layer; etching the piezoelectric film to form a piezoelectric body; and forming a second electrode covering the piezoelectric body.
信息查询