Meng-Lieh Sheu, Chih-Kuan Lai, W. Hsu, Hong-Ming Yang
{"title":"A Novel Capacitive Sensing Scheme for Fingerprint Acquisition","authors":"Meng-Lieh Sheu, Chih-Kuan Lai, W. Hsu, Hong-Ming Yang","doi":"10.1109/EDSSC.2005.1635352","DOIUrl":null,"url":null,"abstract":"In this paper, a novel capacitive sensing scheme for fingerprint acquisition is presented. Based on capacitive fingerprint sensing, a novel capacitive sensor structure and readout circuit are proposed to grab the induced capacitance by the finger directly touched to the sensor plate. A test array of 32x32 capacitive fingerprint sensors is implemented in a standard CMOS 0.35-μm technology. Including the sensor array and peripheral digital control circuit, the chip area is 2550x1890μm2.","PeriodicalId":429314,"journal":{"name":"2005 IEEE Conference on Electron Devices and Solid-State Circuits","volume":"117 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2005-12-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"6","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2005 IEEE Conference on Electron Devices and Solid-State Circuits","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EDSSC.2005.1635352","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 6
Abstract
In this paper, a novel capacitive sensing scheme for fingerprint acquisition is presented. Based on capacitive fingerprint sensing, a novel capacitive sensor structure and readout circuit are proposed to grab the induced capacitance by the finger directly touched to the sensor plate. A test array of 32x32 capacitive fingerprint sensors is implemented in a standard CMOS 0.35-μm technology. Including the sensor array and peripheral digital control circuit, the chip area is 2550x1890μm2.
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