发明名称 |
Miniature sensor unit, especially for finger print sensors |
摘要 |
Sensor chip, especially for measuring of structures in a finger surface, characterized in that it comprises an electronic ship being in a per se known way provided with a number of sensor electrodes for capacitance measurements, the chip being provided with a first layer comprising a metal or another electrically conducting material over and coupled to the sensor electrodes and a first dielectric layer substantially covering the first metal layer.
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申请公布号 |
US7283651(B2) |
申请公布日期 |
2007.10.16 |
申请号 |
US20030297745 |
申请日期 |
2003.04.28 |
申请人 |
IDEX ASA |
发明人 |
VERMESAN OVIDIU;NYSAETHER JON;JOHANSEN IB-RUNE;TSCHUDI JON |
分类号 |
G01B7/28;G06K9/00;A61B5/117;G01N27/22;G06T1/00 |
主分类号 |
G01B7/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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