- 专利标题: Ink-jet printhead and manufacturing method thereof
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申请号: US10299905申请日: 2002-11-20
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公开(公告)号: US06994422B2公开(公告)日: 2006-02-07
- 发明人: Byung-ha Park , Seo-hyun Cho , Myung-jong Kwon , Yong-shik Park , Kyong-il Kim , Jae-sik Min
- 申请人: Byung-ha Park , Seo-hyun Cho , Myung-jong Kwon , Yong-shik Park , Kyong-il Kim , Jae-sik Min
- 申请人地址: KR Suwon-Si
- 专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人: Samsung Electronics Co., Ltd.
- 当前专利权人地址: KR Suwon-Si
- 代理机构: Staas & Halsey LLP
- 优先权: KR2002-0020912 20020417
- 主分类号: B41J2/14
- IPC分类号: B41J2/14 ; B41J2/16 ; B41J2/05
摘要:
An ink-jet printhead and a manufacturing method thereof include a substrate on which an ink chamber having a predetermined volume is formed, a passage for supplying ink to the ink chamber which is formed on a bottom of the ink chamber, a nozzle plate which includes a nozzle corresponding to a center of the ink chamber and at least two insulating layers formed on the substrate, a bubble guide formed inside the nozzle plate and extending from the nozzle into the ink chamber, and a heater which surrounds the nozzle and is disposed between the two insulating layers. A hydrophobic coating layer is formed on a surface of a uppermost layer of the nozzle plate, and a droplet ejecting portion that has a diameter smaller than that of the nozzle of the nozzle plate and is disposed on the same axis as the nozzle, is formed in the hydrophobic coating layer. The nozzle plate is prevented from becoming wet due to ink, stability of an ink spray and a consecutive spray performance are improved, and thus a printing quality and a printing performance of the ink-jet printhead are generally improved.
公开/授权文献
- US20030197762A1 Ink-jet printhead and manufacturing method thereof 公开/授权日:2003-10-23