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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Ching-Sung Lee Ciou-Sheng He Wei-Chou Hsu Ke-Hua Su Ping-Chang Yang Bo-i Chou An-Yung Kao |
| Copyright Year | 2008 |
| Description | Author affiliation: Dept. of Electron. Eng., Feng Chia Univ., Taichung, Taiwan (Ching-Sung Lee) |
| Abstract | This work reports, high electron mobility transistors (HEMTs) using a dilute antimony $In_{0.2}Ga_{0.8}AsSb$ channel, grown by molecular beam epitaxy (MBE) system. Introducing the surfactant-like Sb atoms during growth of the InGaAs/GaAs quantum well (QW) was devised to effectively improve the channel confinement capability and the interfacial quality within the InGaAsSb/GaAs QW heterostructure, resulting in enhanced carrier transport property and superior device performances. In comparison, the proposed devices with employing sulfur $(NH_{4})_{2}S_{x}$ passivation (sample A), silicon nitride $(SiN_{x})$ surface passivation (sample B), or without passivation (sample C) have been investigated. Sample A (B/C) has demonstrated superiorly the maximum extrinsic trans-conductance $(g_{m,}$ $_{max})$ of 221 (205/183) mS/mm, the drain saturation current density (IDSS) of 205 (190/174) mA/mm, the gate-voltage swing (GVS) of 1.105 (1.28/1.482) V, and the P.A.E. characteristic 30.4 (21.4/13) % at 300 K, with the gate dimensions of 1 × 200 $¿m^{2}.$ |
| Starting Page | 1106 |
| Ending Page | 1109 |
| File Size | 1071792 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781424421855 |
| DOI | 10.1109/ICSICT.2008.4734730 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2008-10-20 |
| Publisher Place | China |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Passivation HEMTs MODFETs Molecular beam epitaxial growth Gallium arsenide Atomic layer deposition Indium gallium arsenide Carrier confinement Silicon compounds Current density |
| Content Type | Text |
| Resource Type | Article |
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