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Title:
特に指紋センサのための小型化センサチップ
Document Type and Number:
Japanese Patent JP4818564
Kind Code:
B2
Abstract:
A sensor chip for measuring of structures in a finger surface includes an electronic chip provided with a number of sensor electrodes for capacitance measurements. The chip further includes 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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Inventors:
Ovidiu Vermesan
John Niceter
Eve-Rene Johansen
John Tudy
Application Number:
JP2002503804A
Publication Date:
November 16, 2011
Filing Date:
June 08, 2001
Export Citation:
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Assignee:
IDEX AS
International Classes:
A61B5/117; G01B7/28; G01N27/22; G06K9/00; G06T1/00
Domestic Patent References:
JPH1119069A1999-01-26
JPH08287240A1996-11-01
JPH09289268A1997-11-04
JPH11155837A1999-06-15
JPH11164824A1999-06-22
JPH09231346A1997-09-05
JPH09251530A1997-09-22
JP2000057328A2000-02-25
Foreign References:
WO1998052147A11998-11-19
WO1998052135A21998-11-19
WO1998052157A11998-11-19
WO1998058342A11998-12-23
Attorney, Agent or Firm:
Masatake Shiga
Tadashi Takahashi
Takashi Watanabe
Masakazu Aoyama
Suzuki Mitsuyoshi
Kazuya Nishi
Yasuhiko Murayama
Shinya Mitsuhiro



 
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