发明授权
- 专利标题: Ink jet recording head and method for manufacturing the same
- 专利标题(中): 喷墨记录头及其制造方法
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申请号: US12022741申请日: 2008-01-30
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公开(公告)号: US07901045B2公开(公告)日: 2011-03-08
- 发明人: Kazuya Abe , Kenji Ono , Toshiyasu Sakai , Hiroyuki Abo , Noriyasu Ozaki , Mitsuru Chida
- 申请人: Kazuya Abe , Kenji Ono , Toshiyasu Sakai , Hiroyuki Abo , Noriyasu Ozaki , Mitsuru Chida
- 申请人地址: JP Tokyo
- 专利权人: Canon Kabushiki Kaisha
- 当前专利权人: Canon Kabushiki Kaisha
- 当前专利权人地址: JP Tokyo
- 代理机构: Canon USA Inc IP Div
- 优先权: JP2007-020943 20070131
- 主分类号: B41J2/14
- IPC分类号: B41J2/14 ; H01L23/488
摘要:
The present invention provides an ink jet recording head which includes a substrate, an energy generating element which is disposed on the substrate and generates energy for discharging a liquid, an electrode which is disposed on the substrate and is electrically connected to the energy generating element, a passage-forming member which is disposed on the substrate, an adhesion layer which is disposed on the substrate and facilitates adhesion between the passage-forming member and the substrate, and a bump disposed on the electrode. The area of an upper surface of the bump is larger than the area of a lower surface of the bump, the lower surface being located on the substrate side, the upper surface being located opposite the lower surface, and a side face of the bump is covered with the adhesion layer. Thereby, a protective film is formed around the bump.
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