講演名 | 2002/6/25 Studies of electron beam evaporated SiO_2/AlGaN/GaN-metal-oxide-semiconductor HEMTs on sapphire substrate , |
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抄録(和) | |
抄録(英) | The metal-oxide-semiconductor high-electron-mobility transistors (MOS-HEMTs) have been demonstrated on sapphire substrates, and the dc characteristics of the fabricated devices were examined. The electron beam (EB) evaporated SiO_2 oxide layers were used as a gate-insulator. The fabricated MOS-HEMTs have exhibited superior dc characteristics when compared with the conventional AlGaN/GaN HEMTs. The MOS-HEMTs could operate at positive gate-biases as high as +4.0 V. The MOS-HEMTs exhibited high drain current at 856 mA/mm. The extrinsic transconductance of 144 mS/mm has been found in 1.7 μm-gate-length EB-SiO_2 MOS-HEMTs. The gate leakage current was three orders of magnitude smaller than that of the conventional AlGaN/GaN HEMTs. The stable device operations at high gate voltages indicate that the trap density at the interface between the EB-SiO_2 and AlGaN/GaN heterostructure will be low. |
キーワード(和) | |
キーワード(英) | AlGaN/GaN / MOCVD / HEMT / MOS-HEMT / Electron Beam Evaporated SiO_2 |
資料番号 | SDM2002-114 |
発行日 |
研究会情報 | |
研究会 | SDM |
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開催期間 | 2002/6/25(から1日開催) |
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講演論文情報詳細 | |
申込み研究会 | Silicon Device and Materials (SDM) |
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本文の言語 | ENG |
タイトル(和) | |
サブタイトル(和) | |
タイトル(英) | Studies of electron beam evaporated SiO_2/AlGaN/GaN-metal-oxide-semiconductor HEMTs on sapphire substrate |
サブタイトル(和) | |
キーワード(1)(和/英) | / AlGaN/GaN |
第 1 著者 氏名(和/英) | / S. ARULKUMARAN |
第 1 著者 所属(和/英) | Research Center for Micro-structure Devices, Nagoya Institute of Technology |
発表年月日 | 2002/6/25 |
資料番号 | SDM2002-114 |
巻番号(vol) | vol.102 |
号番号(no) | 179 |
ページ範囲 | pp.- |
ページ数 | 4 |
発行日 |