Invention Grant
- Patent Title: Method of making a capacitance type acceleration sensor
- Patent Title (中): 制造电容式加速度传感器的方法
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Application No.: US723875Application Date: 1996-09-23
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Publication No.: US5676851APublication Date: 1997-10-14
- Inventor: Masayoshi Suzuki , Takao Sasayama , Keizi Hanzawa , Norio Ichikawa , Junichi Horie , Yukiko Sugisawa , Yuuji Ogasawara
- Applicant: Masayoshi Suzuki , Takao Sasayama , Keizi Hanzawa , Norio Ichikawa , Junichi Horie , Yukiko Sugisawa , Yuuji Ogasawara
- Applicant Address: JPX Tokyo JPX Ibaraki
- Assignee: Hitachi Ltd.,Hitachi Automotive Engineering Co., Ltd.
- Current Assignee: Hitachi Ltd.,Hitachi Automotive Engineering Co., Ltd.
- Current Assignee Address: JPX Tokyo JPX Ibaraki
- Priority: JPX5-331003 19931227
- Main IPC: G01P1/02
- IPC: G01P1/02 ; G01P15/125 ; B44C1/22 ; H01L21/00
Abstract:
A capacitance acceleration sensor and method of making same are disclosed. A capacitance acceleration sensor includes a movable electrode etched from a silicon plate which is clamped between two solid dielectric plate members of glass, silicon oxides, or oxygen oxides. Static electrodes are secured to surfaces of the dielectric members facing opposite the movable electrode, thereby providing easy manufacturing assessibility for leadout wires from these electrodes. In certain embodiments, the movable electrode is formed integrally with a monocrystalline silicon plate member which also contains an integrated circuit for generating an output acceleration signal in response to movement of the movable electrode when the assembly experiences acceleration forces.
Public/Granted literature
- US5148481A Transaction system security method and apparatus Public/Granted day:1992-09-15
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