EFFECTS OF ELECTRON-BEAM DAMAGE ON THE ELECTRICAL CHARACTERISTICS OF N-TYPE METAL-OXIDE-SEMICONDUCTOR FIELD-EFFECT-TRANSISTORS

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The effects of electron beam damage on the degradations of n-type metal-oxide-semiconductor field-effect-transistors (n-MOSFETs) due to the creation of interface traps were investigated using charge-pumping and subthreshold slope measurement methods. The in situ device characteristics such as threshold voltage were not changed much by the electron beam damage as compared with those of virgin ones if the devices were annealed properly. The long-term reliability characteristics, however, were significantly degraded even with a small dose of electron beam irradiation. Moreover, device lifetimes were shown to decrease at a fast rate as the electron beam irradiation dose was increased even after annealing. It was also observed that the interface trap density dependency on electron beam irradiation dose investigated by the charge-pumping method was highly consistent with that by the subthreshold slope measurement technique.
Publisher
JAPAN J APPLIED PHYSICS
Issue Date
1994
Article Type
Article
Keywords

MOSFET DEGRADATION; HOT-ELECTRON; MODEL

Citation

JAPANESE JOURNAL OF APPLIED PHYSICS PART 1-REGULAR PAPERS SHORT NOTES & REVIEW PAPERS, v.33, no.3A, pp.1223 - 1227

ISSN
0021-4922
DOI
10.1143/JJAP.33.1223
URI
http://hdl.handle.net/10203/58508
Appears in Collection
EE-Journal Papers(저널논문)
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