DocumentCode
1105772
Title
Hot-carrier memory effect in an Al/SiN/SiO2 /Si MNOS diode due to electrical stress
Author
Chang, C.Y. ; Tzeng, F.C. ; Chen, C.T. ; Mao, Y.W.
Author_Institution
National Cheng Kung University, Taiwan, China
Volume
6
Issue
9
fYear
1985
fDate
9/1/1985 12:00:00 AM
Firstpage
448
Lastpage
449
Abstract
An Al/SiN(70 Å)/SiO2 (126 Å)/(p)Si MNOS diode was fabricated by using the LOCOS process. The interface trap densities at SiN-SiO2 and at the SiO2 -Si interface were measured by a CV method. Successive stresses of biasing at -20 V introduces both trap densities. Memory effect of the flat-band shifts was observed. The electron traps were first produced at the SiN-SiO2 interface. In addition, the hole traps were also produced owing to the two-step barrier formation in the insulators. Fowler-Nordheim tunneling may be responsible for the trapping in the oxide. The hole traps can be annealed while the electron traps cannot be.
Keywords
Annealing; Density measurement; Diodes; Electron traps; Hot carrier effects; Hot carriers; Insulation; Silicon compounds; Stress; Tunneling;
fLanguage
English
Journal_Title
Electron Device Letters, IEEE
Publisher
ieee
ISSN
0741-3106
Type
jour
DOI
10.1109/EDL.1985.26188
Filename
1485341
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