Planar and residual channeling of Si+implants in GaAs
作者:
R. T. Blunt,
P. Davies,
期刊:
Journal of Applied Physics
(AIP Available online 1986)
卷期:
Volume 60,
issue 3
页码: 1015-1018
ISSN:0021-8979
年代: 1986
DOI:10.1063/1.337390
出版商: AIP
数据来源: AIP
摘要:
The influence of planar channeling on the atomic profiles of low‐dose Si+implants into GaAs is demonstrated as a function of wafer rotation angle, ion beam incidence angle, wafer crystallinity, and thickness of dielectric coating on the surface of the wafer during implantation. Use of a controlled wafer rotation angle or implantation through a dielectric layer results in reproducible profiles free of planar channeling effects. However, even these implants still show a significant profile ‘‘tail’’ that is absent for implants into preamorphized material, thus suggesting the existence of significant residual channeling in GaAs.
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