一种新的电容式指纹采集方案

2005 IEEE Conference on Electron Devices and Solid-State Circuits Pub Date : 2005-12-19 DOI:10.1109/EDSSC.2005.1635352

Meng-Lieh Sheu, Chih-Kuan Lai, W. Hsu, Hong-Ming Yang

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引用次数: 6

摘要

本文提出了一种新的电容式指纹采集方案。在电容式指纹传感的基础上，提出了一种新型的电容式指纹传感器结构和读出电路，通过手指直接接触传感器板来获取感应电容。采用标准CMOS 0.35 μm技术实现了32x32电容式指纹传感器测试阵列。包括传感器阵列和外围数字控制电路，芯片面积为2550x1890μm2。

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A Novel Capacitive Sensing Scheme for Fingerprint Acquisition

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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来源期刊

2005 IEEE Conference on Electron Devices and Solid-State Circuits

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