DocumentCode
3555887
Title
Mo2 N/Mo gate MOSFETs
Author
Kim, Manjin J. ; Brown, Dale M.
Author_Institution
General Electric Company, Schenectady, NY
Volume
28
fYear
1982
fDate
1982
Firstpage
560
Lastpage
563
Abstract
Molybdenum nitride coatings on molybdenum using a direct reaction of molybdenum with ammonia is used to improve the gate electrode properties of Mo gate self-aligned MOSFETs. The Mo2 N double layer gate shows resistance against oxidation, processing reagents and improved ion implantation masking. The work function of the double layer film was determined to be 4.69 ± 0.03 eV which is independent of the nitride thickness and annealing conditions. Boron implantation range is smaller in Mo2 N than Mo. A Mo2 N coating of 870Å over 2130Å Mo masks up to 60 keV B11 and 120 keV As75. The implantation study covers the energy range from 15 to 70 keV for boron and from 40 to 160 keV for arsenic.
Keywords
Annealing; Boron; Chemical processes; Coatings; Conductivity; Etching; Fabrication; MOS devices; Pollution measurement; Voltage measurement;
fLanguage
English
Publisher
ieee
Conference_Titel
Electron Devices Meeting, 1982 International
Type
conf
DOI
10.1109/IEDM.1982.190353
Filename
1482887
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