Title :
Oxide TFT Rectifier Achieving 13.56-MHz Wireless Operation
Author :
Kawamura, Tetsufumi ; Wakana, Hironori ; Fujii, Kuniharu ; Ozaki, Hiroaki ; Watanabe, Kazuki ; Yamazoe, Takanori ; Uchiyama, Hiroyuki ; Torii, Kazuyoshi
Author_Institution :
Central Res. Lab., Hitachi Ltd., Tokyo, Japan
Abstract :
We have fabricated a full-wave rectifier using fully depleted amorphous In-Ga-Zn-O thin-film transistors (TFTs). The rectifier is composed of four TFTs, and it rectified 13.56-MHz wireless input from a 200-mW commercial RFID reader/writer. We also have analyzed an output voltage and an operation frequency of the fabricated rectifier.
Keywords :
radiofrequency identification; rectifying circuits; thin film transistors; In-Ga-Zn-O; commercial RFID reader/writer; frequency 13.56 MHz; full-wave rectifier; oxide TFT rectifier; thin-film transistors; wireless operation; Electrodes; Fabrication; Logic gates; Substrates; Thin film transistors; Wireless communication; In–Ga–Zn–O (IGZO); oxide semiconductor; rectifier; thin-film transistors (TFTs);
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2012.2213091
