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An Above Threshold Model for Short-Channel DG MOSFETs.
- Source :
-
IEEE Transactions on Electron Devices . Aug2021, Vol. 68 Issue 8, p3734-3739. 6p. - Publication Year :
- 2021
-
Abstract
- An above-threshold I–V model is developed for short-channel double-gate (DG) MOSFETs. It is a non-gradual channel approximation (non-GCA) model that takes into account the contribution to carrier density from the encroachment of source–drain bands into the channel. At low-drain bias voltages, the effect appears as a gate-voltage-dependent reduction of channel resistance, with stronger effects at low gate overdrives. At high-drain biases, the intersection of source band encroachment with the gate-controlled channel potential leads to a point of virtual cathode a small distance from the source. By incorporating the depletion of carriers in the source and drain regions into the boundary conditions, the ${I}_{\text {ds}}-{V}_{\text {ds}}$ and ${I}_{\text {ds}}-{V}_{\text {gs}}$ characteristics generated by the model are shown to be consistent with TCAD simulations. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00189383
- Volume :
- 68
- Issue :
- 8
- Database :
- Academic Search Index
- Journal :
- IEEE Transactions on Electron Devices
- Publication Type :
- Academic Journal
- Accession number :
- 153763876
- Full Text :
- https://doi.org/10.1109/TED.2021.3092310