发明公开
EP0369352A1 Capacitance type accelerometer and method of manufacturing the same
失效
Kapazitiver Beschleunigungsmesser und Verfahren zu seiner Herstellung。
- 专利标题: Capacitance type accelerometer and method of manufacturing the same
- 专利标题(中): Kapazitiver Beschleunigungsmesser und Verfahren zu seiner Herstellung。
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申请号: EP89120880.3申请日: 1989-11-10
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公开(公告)号: EP0369352A1公开(公告)日: 1990-05-23
- 发明人: Suzuki, Seiko , Tsuchitani, Shigeki , Miki, Masayuki , Matsumoto, Masahiro
- 申请人: HITACHI, LTD.
- 申请人地址: 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 101 JP
- 专利权人: HITACHI, LTD.
- 当前专利权人: HITACHI, LTD.
- 当前专利权人地址: 6, Kanda Surugadai 4-chome Chiyoda-ku, Tokyo 101 JP
- 代理机构: Beetz & Partner Patentanwälte
- 优先权: JP286714/88 19881115
- 主分类号: G01P15/125
- IPC分类号: G01P15/125
摘要:
The invention relates to a capacitance type accelerometer and a method of manufacturing the same. The capacitance type accelerometer has a first silicon plate (2,7) formed as having a movable electrode part (7) which is moved according to acceleration, two second silicon plates (1, 3) which are disposed on both sides of the first silicon plate with a certain separation distance, and thermal oxide films (4, 5) which are respectively disposed between the first silicon plate except the movable electrode part (7) and the two second silicon plates (1, 3) and stick the first silicon plate (2) except the movable electrode and the two second silicon plates together. The process of manufacturing the capacitance type accelerometer is made by processing and cutting a wafer by dicing saw without coming into the accelerometer of cutting chips or cutting water.
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