High power and high breakdown δ-doped In0.35Al0.65As/In0.35Ga0.65As metamorphic HEMT

被引:17
作者
Yu, SJ
Hsu, WC
Chen, YJ
Wu, CL
机构
[1] Natl Cheng Kung Univ, Inst Microelect, Dept Elect Engn, Tainan 70101, Taiwan
[2] Transcom Inc, Tainan 744, Taiwan
关键词
metamorphic; breakdown; In0.35Al0.65As/In0.35Ga0.65As MHEMT;
D O I
10.1016/j.sse.2005.12.003
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
delta-Doped In0.35Al0.65As/In0.35Ga0.65As metamorphic high electron mobility transistor (MHEMT) grown by molecular beam epitaxy (MBE) has been successfully investigated. High power characteristic are achieved due to the improved impact ionization and kink effects within the channel by bandgap engineering. This work demonstrates distinguished device characteristics, including superior breakdown performance (BVGD = -15.2 V and BVoff = 14.1 V), high small-signal gain (G(s) = 22.7 dB), high microwave output power (P-out = 14.1 dB m at 2.4 GHz), and low minimum noise figure (NFmin = 1.1 dB). In addition, complete parametric information of the small-signal device model has also been extracted and discussed for the studied metamorphic HEMT. (c) 2005 Elsevier Ltd. All rights reserved.
引用
收藏
页码:291 / 296
页数:6
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