Low etch pit density GaAs on Si grown by metalorganic chemical vapor deposition
作者:
Tetsuo Soga,
Takashi Jimbo,
Masayoshi Umeno,
期刊:
Applied Physics Letters
(AIP Available online 1990)
卷期:
Volume 56,
issue 15
页码: 1433-1435
ISSN:0003-6951
年代: 1990
DOI:10.1063/1.102489
出版商: AIP
数据来源: AIP
摘要:
GaAs was grown on a Si substrate by metalorganic chemical vapor deposition using GaAs/GaAsP strained‐layer superlattice (SLS) intermediate layers. The dislocation density decreases at the interface between GaAs and the SLS, but does not decrease in the SLS. When a GaAs/GaAsP SLS is used as the intermediate layer, part of the threading dislocation propagates into the top GaAs layer because of the lattice mismatch of GaAs and SLS. The low etch pit density of (3–5)×105cm−2was obtained by using the intermediate layer of a GaAs/GaAsP SLS and an AlAs/GaAs superlattice with thermal cycle annealing.
点击下载:
PDF
(356KB)
返 回