A CMOS readout circuit for LTPS-TFT capacitive fingerprint sensor

被引：0

作者：

Tiao, Yu-Sheng ^{[1
]}

Sheu, Meng-Lieh ^{[1
]}

Wu, Shi-Min ^{[1
]}

Yang, Hong-Ming ^{[1
]}

机构：

[1] Natl Chi Nan Univ, Dept Elect Engn, Puli, Taiwan

来源：

2005 IEEE CONFERENCE ON ELECTRON DEVICES AND SOLID-STATE CIRCUITS, PROCEEDINGS | 2005年

关键词：

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper, a CMOS readout circuit for capacitive fingerprint sensor fabricated by using low temperature polycrystalline silicon thin-film transistor (LTPS-TFT) process is presented. Based on capacitive fingerprint sensing, the readout circuit grabs the induced capacitance by the finger directly touched on the sensor chip. An experimental readout chip is designed for sensor array size of 30 x 30, and implemented by using a standard CMOS process. A prototype PCB is used to integrate the readout chip and sensor chip to achieve a fingerprint acquisition system.

引用

页码：631 / 634

页数：4

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