N+-InGaAs/InAlAs recessed gates for InAs/AlSb HFET development

Wei Zhi He, Heng Kuang Lin, Pei Chin Chiu, Jen Inn Chyi, Chih Hsin Ko, Ta Ming Kuan, Meng Kuei Hsieh, Wen Chin Lee, Clement H. Wann

研究成果: 書貢獻/報告類型會議論文篇章同行評審

摘要

In this work, N+-InGaAs/InAlAs recessed gates for InAs/AlSb HFET development are presented. Highly doped N+-InGaAs cap layers are used to decrease the parasitic resistances in contact and access regions. As-grown modulation-doped epitaxy materials exhibit a Hall mobility of 14,200 cm2/V s and a sheet density of 6.15 × 1012 cm -2, while a mobility of 14,600 cm2/V s and a sheet density of 5.61×1012 cm-2 are shown after removal of the N+-InGaAs cap. Benefiting the energy band lowering using the highly doped cap layers, a low contact resistance of 0.06 Ω-mm is achieved. DC performances of IDSS=862mA/mm and gm,peak=927mS/mm and RF performances of fT=24GHz and fmax=51GHz are demonstrated in a 2.1μm-gate-length device. An fT-Lg product is as high as 51 GH-μm.

原文???core.languages.en_GB???
主出版物標題2010 International Conference on Indium Phosphide and Related Materials, 22nd IPRM - Conference Proceedings
頁面329-332
頁數4
DOIs
出版狀態已出版 - 2010
事件22nd International Conference on Indium Phosphide and Related Materials, IPRM 2010 - Kagawa, Japan
持續時間: 31 5月 20104 6月 2010

出版系列

名字Conference Proceedings - International Conference on Indium Phosphide and Related Materials
ISSN(列印)1092-8669

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???event.eventtypes.event.conference???22nd International Conference on Indium Phosphide and Related Materials, IPRM 2010
國家/地區Japan
城市Kagawa
期間31/05/104/06/10

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