Two-Transistor Active Pixel Image Sensor with Active Diode Reset
A two-transistor active pixel image sensor (2T-APS) architecture is proposed. Instead of a reset transistor, a diode within the pinned photodiode sensor is used to reset the charge-sensing node in each pixel without any extra area. The new architecture can be used to increase the fill factor and/or reduce the pixel pitch. A test structure of the 2T-APS has been demonstrated using 0.35 μm CMOS technology featuring a 7μm×7μm pixel size with a fill factor of 38%. The pixel characteristics are presented and discussed.
Dongwei Zhang Frank He Amine Bermak Mansun Chan
Department of ECE, Hong Kong University of Science and Technology, Hong Kong, China TSRC, School of EECS, Peking University, Beijing, 100871, China
国际会议
上海
英文
1468-1470
2010-11-01(万方平台首次上网日期,不代表论文的发表时间)