DocumentCode
1113365
Title
Buried and graded/buried LDD structures for improved hot-electron reliability
Author
Wei, Ching-yeu ; Pimbley, J.M. ; Nissan-Cohen, Y.
Author_Institution
General Electric Company, Schenectady, NY
Volume
7
Issue
6
fYear
1986
fDate
6/1/1986 12:00:00 AM
Firstpage
380
Lastpage
382
Abstract
New buried and graded/buried lightly doped drain (LDD) structures have been demonstrated, for the first time, to improve significantly the hot-electron reliability of NMOS devices. Both LDD structures have peak doping of the n- spacer implant approximately 1000 A below the Si-SiO2 interface forming a "buried" n- spacer near the drain region. In the graded/buried LDD structure the junction of the "buried" n- spacer is further graded by an additional low-dose phosphorus spacer implant.
Keywords
Channel hot electron injection; Doping profiles; Electron traps; Energy barrier; Fabrication; Helium; Implants; MOS devices; Power supplies; Voltage;
fLanguage
English
Journal_Title
Electron Device Letters, IEEE
Publisher
ieee
ISSN
0741-3106
Type
jour
DOI
10.1109/EDL.1986.26407
Filename
1486230
Link To Document