DocumentCode
1658243
Title
Threshold voltage adjustment in SOI MOSFETs by employing tantalum for gate material
Author
Shimada, Hisayuki ; Hirano, Yuichi ; Ushiki, Takeo ; Ohmi, Tadahiro
Author_Institution
Dept. of Electron. Eng., Tohoku Univ., Sendai, Japan
fYear
1995
Firstpage
881
Lastpage
884
Abstract
The threshold voltages of n-channel and p-channel thin-film Si-on-Insulator (SOI) MOSFETs have been controlled by employing Tantalum (Ta) for gate materials in 1 V applications. The threshold voltage control in SOI MOSFETs by the work function of gate material, that is, work function engineering is needed. In order to suppress the reaction between Ta and gate oxide, low-temperature processing after the gate oxide step was successfully established
Keywords
MOSFET; silicon-on-insulator; tantalum; thin film transistors; work function; 1 V; SOI MOSFETs; Ta gate material; Ta-SiO2-Si; low-temperature processing; n-channel TFT; p-channel TFT; thin-film MOSFET; threshold voltage adjustment; work function engineering; CMOS process; Conductivity; Copper; Electrodes; Impurities; Intelligent systems; Laboratories; MOSFET circuits; Threshold voltage; Voltage control;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting, 1995. IEDM '95., International
Conference_Location
Washington, DC
ISSN
0163-1918
Print_ISBN
0-7803-2700-4
Type
conf
DOI
10.1109/IEDM.1995.499357
Filename
499357
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