Vertical Leakage/Breakdown Mechanisms in AlGaN/GaN-on-Si Structures

被引:0
|
作者
Zhou, Chunhua [1 ]
Jiang, Qimeng [1 ]
Huang, Sen [1 ]
Chen, Kevin J. [1 ]
机构
[1] Hong Kong Univ Sci & Technol, Dept Elect & Comp Engn, Hong Kong, Hong Kong, Peoples R China
关键词
AlGaN/GaN-on-Si structures; vertical leakage and breakdown; space-charge-limited current conduction; acceptor level; donor level; CHARGE-LIMITED CURRENTS; CURRENT COLLAPSE; BUFFER; TRAPS; HEMTS; SILICON;
D O I
暂无
中图分类号
TP3 [计算技术、计算机技术];
学科分类号
0812 ;
摘要
In this paper, we studied the vertical leakage/breakdown mechanisms in AlGaN/GaN structures grown on low resistivity p-type (111) Si substrate by temperature-dependent current-voltage measurements. We suggested that the top-to-substrate vertical leakage/breakdown is dominated by the space-charge-limited current (SCLC) conduction mechanism involving both acceptor and donor traps in buffer/transition layer. Based on temperature-dependent transient backgating measurements, the acceptor level and donor level were determined to be at E-V+543 meV and E-C-616 meV, respectively.
引用
收藏
页码:245 / 248
页数:4
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