| Presentation | 2008-11-28 Two-Dimensional Analysis of Field-Plate Effects on Buffer-Related Lag Phenomena and Current Collapse in AlGaN/GaN HEMTs Atsushi NAKAJIMA, Keiichi ITAGAKI, Kazushige HORIO, |
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| PDF Download Page |  PDF download Page Link |
| Abstract(in Japanese) | (See Japanese page) |
| Abstract(in English) | Two-dimensional transient analyses of field-plate AlGaN/GaN HEMTs are performed in which a deep donor and a deep acceptor are considered in a semi-insulating buffer layer, and quasi-pulsed current-voltage curves are derived from them. It is studied how the existence of field plate affects buffer-related drain lag, gate lag and current collapse. It is shown that the drain lag is reduced by introducing a field plate, because electron injection into the buffer layer is weakened by it, and the trapping effects are reduced. It is also shown that the current collapse and gate lag are reduced in the field-plate structures. The dependence on SiN passivation layer thickness is also studied, suggesting that there is an optimum thickness of SiN layer to minimize the buffer-related current collapse and drain lag in AlGaN/GaN HEMTs. |
| Keyword(in Japanese) | (See Japanese page) |
| Keyword(in English) | GaN / HEMT / Field Plate / Current Collapse / Drain Lag / Trap / Two-Dimensional Numerical Analysis |
| Paper # | ED2008-173,CPM2008-122,LQE2008-117 |
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| Committee | ED |
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| Conference Date | 2008/11/20(1days) |
| Place (in Japanese) | (See Japanese page) |
| Place (in English) | |
| Topics (in Japanese) | (See Japanese page) |
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| Paper Information | |
| Registration To | Electron Devices (ED) |
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| Language | JPN |
| Title (in Japanese) | (See Japanese page) |
| Sub Title (in Japanese) | (See Japanese page) |
| Title (in English) | Two-Dimensional Analysis of Field-Plate Effects on Buffer-Related Lag Phenomena and Current Collapse in AlGaN/GaN HEMTs |
| Sub Title (in English) | |
| Keyword(1) | GaN |
| Keyword(2) | HEMT |
| Keyword(3) | Field Plate |
| Keyword(4) | Current Collapse |
| Keyword(5) | Drain Lag |
| Keyword(6) | Trap |
| Keyword(7) | Two-Dimensional Numerical Analysis |
| 1st Author's Name | Atsushi NAKAJIMA |
| 1st Author's Affiliation | Faculty of Systems Engineering, Shibaura Institute of Technology() |
| 2nd Author's Name | Keiichi ITAGAKI |
| 2nd Author's Affiliation | Faculty of Systems Engineering, Shibaura Institute of Technology |
| 3rd Author's Name | Kazushige HORIO |
| 3rd Author's Affiliation | Faculty of Systems Engineering, Shibaura Institute of Technology |
| Date | 2008-11-28 |
| Paper # | ED2008-173,CPM2008-122,LQE2008-117 |
| Volume (vol) | vol.108 |
| Number (no) | 321 |
| Page | pp.pp.- |
| #Pages | 5 |
| Date of Issue | |