DocumentCode
1655440
Title
A novel poly-silicon-capped poly-silicon-germanium thin-film transistor
Author
Tang, Andrew J. ; Tsai, Julie A. ; Reif, Rafael ; King, Tsu-Jae
Author_Institution
Microsystems Technol. Lab., MIT, Cambridge, MA, USA
fYear
1995
Firstpage
513
Lastpage
516
Abstract
Poly-silicon-capped (poly-Si-capped) polysilicon-germanium (poly-Si1-xGex) thin-film transistors (TFTs) have been designed and fabricated with the aim to improve performance of load devices in high-density mega-bit SRAM cells. Poly-Si-capped poly-Si1-xGex TFTs utilize the excellent interface between oxide and poly-Si interface as well as the higher mobilities of poly-Si1-xGex. P-channel poly-Si-capped poly-Si 1-xGex TFTs show superior device results compared to similarly-processed poly-Si TFTs
Keywords
Ge-Si alloys; SRAM chips; carrier mobility; leakage currents; plasma CVD; semiconductor growth; semiconductor materials; thin film transistors; SiO2-Si-SiGe; carrier mobilities; high-density mega-bit SRAM cells; leakage current; load devices; on-current; plasma enhanced very low pressure CVD; poly-Si1-xGex TFTs; poly-silicon-germanium thin-film transistor; polysilicon capping; polysilicon-oxide interface; Amorphous materials; Chemical vapor deposition; Intrusion detection; Laboratories; Leakage current; Plasma temperature; Random access memory; SRAM chips; Substrates; Thin film transistors;
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.1995.499250
Filename
499250
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