Design and Implementation of CMOS Photosensor Array for RFID and Medical Electronics

• Main Authors: Meng Shian Lin, 林孟賢
• Other Authors: W. S. Feng
• Format: Others
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/51558234694532059288

碩士 === 長庚大學 === 電子工程學研究所 === 96 === RFID applies in the physical distribution, the personnel manages, the automatic charge, the immediate environmental monitoring enhanced the management efficiency and accuracy. RFID has also made the contribution in the promotion life and property security aspect. The United States Congress already legislated, requests the tire factory to embedded RFID tag before 2006, to detect tire pressure and temperature. In addition RFID also applied in recent years in the hospital, contained the tracing sickness and the medical drugs provides the immediate medical service in the position to look after. This thesis designed the light intensity and the position sensor and spectrum sensor. Using 2.4GHz signal actuation voltage-doubling circuit. Send the voltage to regulator and generate a 0.9V steady voltage. This provides the light - electrical signal switching circuit and the control circuit use. In the circuit we translate the light-electrical signal and send it by 100MHz signal by the 35um×35um sensor unit as our photosensor. The sensing result achieves in 27 µs by a assistance electric discharge design. When exposing under the strongest light intensity we get the pulse at 15µs, the light intensity is weakest we get the pulse at 15.5µs. And the spectrum sensory element can output the corresponding value in 0.35 ~ 1.1 µ m visible light scopes. The proposed chip, with a die area of 1.38×0.88 mm2 & 1.25×0.78mm2, is patronized by National Applied Research Laboratories National Chip Implementation Center(NARL NCIC), accomplished by using Taiwan Semiconductor Manufacturing Company (TSMC) 0.18μm 1P6M 1.8V mixed‐signal CMOS process. Photodiode which composed of NW/Psub junction.