【摘 要】
：
Novel structure GaAs/InGaAs/AlGaAs pseudomorphic modulation-doped field-effect transistors (MODFETs) with a buried p-i-n dipole layer and a 200 nm buffer layer
【机 构】
：
State Key Laboratory on Integrated Optoelectronics and College of Electronic Science & Engineering,
论文部分内容阅读
Novel structure GaAs/InGaAs/AlGaAs pseudomorphic modulation-doped field-effect transistors (MODFETs) with a buried p-i-n dipole layer and a 200 nm buffer layer have been fabricated. According to the calculation, the dipole buried layer not only results in the very thin buffer layer required, but also enhances the density of two-dimensional electron gas. The measured transconductances of these MODFETs, with a gate length of 2 μm and a drain-source spacing of 5μm, are as high as 320 mS/mm and the measured maximum drain currents of the typical devices are higher than 500 mA/mm.
其他文献
Rapid hypoeutectic growth from a highly undercooled liquid was accomplished by containerless processing Ni32%Sb hypoeutectic alloy in a 3m drop tube. The contai
江苏省高校学生体质监测是2000年我省国民体质监测工作整体的一部分,其中20毛2岁大学生与普通成年人年龄重合,但高校生源的非本地化以及高校学生特有的生活和学习环境,决定了
Optical limitation (OL) performances of the gold nanoclusters protected by C6o-tpy have been investigated with 8 ns pulses at 532nm. The experimental results sh
建国前后几十年,玉林地区晚稻的当家品种主要是中山占宗族,考究中山占宗族对玉林地区生态环境的适应性及主要性状的遗传变异,对选育晚稻新品种有一定的启示。
Decades befo
2006年7月,云南省大理州公安局交警支队联合大理电视台开办了一档交通安全宣传专题栏目《平安是福》。正如栏目寓意所指,穿过电视荧屏的10年蹉跎,该栏目风雨无阻,坚持普及交
From the nonperturbative quantum electrodynamics theory, we derive the Landau-Dykhne formula which represents the quantum-mechanical formulation of the three-st
We apply two-photon resonant nondegenerate four-wave mixing with a resonant intermediate state for the obser- vation of Rydberg states in sodium vapour. The bro
High spin states in 90Mo have been populated through the 59Co (35C1,2p2n) 90Mo reaction at a beam energy of116 Me V. Level lifetimes of the positive-parity deca
A new silicon-based PbTiO3/Pb(Zr0.53 Ti0.47)O3/PbTiO3 sandwich structure is fabricated by a sol-gel method. Compared with other fabrication processes without Pb
A Bayesian approach is used to derive the probability distribution (PD) of the Hubble constant H0 from recent measurements including supeovae Ia, the Tully-Fish