Demonstration of a GaN-spacer high electron mobility transistor with low alloy scattering

2005 ◽  
Vol 202 (5) ◽  
pp. 837-840 ◽  
Author(s):  
T. Palacios ◽  
L. Shen ◽  
S. Keller ◽  
A. Chakraborty ◽  
S. Heikman ◽  
...  
Keyword(s):  
Electron Mobility ◽  
High Electron Mobility Transistor ◽  
High Electron ◽  
High Electron Mobility ◽  
Alloy Scattering

Impact of AlN Spacer on Electron Mobility of AlGaN/AlN/GaN Structures on Silicon

2013 ◽  
Vol 740-742 ◽  
pp. 502-505 ◽  
Author(s):  
Sebastian Roensch ◽  
Victor Sizov ◽  
Takuma Yagi ◽  
Saad Murad ◽  
Lars Groh ◽  
...  
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Electron Mobility ◽  
High Electron Mobility Transistor ◽  
Strong Impact ◽  
High Electron ◽  
High Electron Mobility ◽  
Alloy Scattering ◽  
The Impact ◽  
Scanning Electron

The impact of the thickness of an AlN spacer in AlGaN/AlN/GaN high electron mobility transistor (HEMT) structures on the Hall mobility was investigated in a range of 30 K - 340 K. The AlN spacer has a strong impact on the mobility at temperatures below 150 K. This effect is linked to a reduction of alloy scattering. Optical and scanning electron microscopy revealed hexagonal shaped defects which also have an effect on the mobility. These defects can be avoided by an appropriate adjustment of the AlN layer thickness.

The Effect of AlN Buffer Layer on AlGaN/GaN/AlN Double‐Heterostructure High‐Electron‐Mobility Transistor

2019 ◽  
Vol 217 (7) ◽  
pp. 1900694
Author(s):  
Uiho Choi ◽  
Donghyeop Jung ◽  
Kyeongjae Lee ◽  
Taemyung Kwak ◽  
Taehoon Jang ◽  
...  
Keyword(s):  
Buffer Layer ◽  
Electron Mobility ◽  
High Electron Mobility Transistor ◽  
High Electron ◽  
High Electron Mobility ◽  
Double Heterostructure ◽  
Aln Buffer

Double δ-Doped Enhancement-Mode InGaP/AlGaAs/InGaAs Pseudomorphic High Electron Mobility Transistor for Linearity Application

2006 ◽  
Vol 45 (No. 35) ◽  
pp. L932-L934 ◽  
Author(s):  
Li-Hsin Chu ◽  
Heng-Tung Hsu ◽  
Edward-Yi Chang ◽  
Tser-Lung Lee ◽  
Sze-Hung Chen ◽  
...  
Keyword(s):  
Electron Mobility ◽  
High Electron Mobility Transistor ◽  
High Electron ◽  
High Electron Mobility ◽  
Enhancement Mode
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