| Paper Abstract and Keywords |
| Presentation |
2026-08-04 10:45
Gate-length dependence of subthreshold slope in cryogenic operation of MOSFETs Takumi Katori (AIST/TDU), Hidehiro Asai, Hiroshi Oka, Kimihiko Kato, Takumi Inaba, Yuika Kobayashi, Takashi Nakayama (AIST), Satoshi Moriyama (TDU), Takahiro Mori (AIST) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
We experimentally found the gate-length dependence of the subthreshold swing (SS) in long-channel n- and p- MOSFETs at cryogenic temperatures and investigated its mechanism using device simulations. Considering the band-edge states and focusing on the dominance of the drift and diffusion current components in the drain current, we found that the drift component highly dominates the current even within the subthreshold current range at cryogenic temperatures. Therefore, the subthreshold swing depends on the gate length due to the gate-length dependence of the drift component. We also highlight the importance of the effect of the band-edge states, which significantly impacts the dominance ratio of the drift component in the subthreshold current range. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
cryo-CMOS / MOSFET / subthreshold swing / band-edge states / / / / |
| Reference Info. |
ITE Tech. Rep. |
| Paper # |
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| Date of Issue |
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| ISSN |
Online edition: ISSN 2424-1970 |
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