DocumentCode
782180
Title
High-resolution imaging of defects in III-V compound wafers by near-infra-red phase contrast microscopy
Author
Montgomery, P.C. ; Fullard, J.P.
Author_Institution
Univ. des Sci. et Tech. du Languedoc, Montpellier, France
Volume
25
Issue
2
fYear
1989
Firstpage
89
Lastpage
90
Abstract
The development of a high-resolution infra-red microscope operating in the phase contrast mode is reported for observing defects in III-V compound wafers. Strings of microprecipitates smaller than 1 mu m in diameter connected by arched dislocation paths have been observed in indium-doped GaAs. These results give similar patterns to those previously seen by other workers using A/B etching.
Keywords
III-V semiconductors; dislocations; infrared spectra of inorganic solids; optical microscopy; precipitation; III-V compound wafers; arched dislocation paths; defect imaging; high-resolution infra-red microscope; microprecipitates; near-infra-red phase contrast microscopy;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19890066
Filename
14234
Link To Document