DocumentCode
993050
Title
Photodisplacement microscopy
Author
Burov, J.I. ; Bransalov, K.P.
Author_Institution
Sofia University, Faculty of Physics, Department of Solid State Physics, Sofia, Bulgaria
Volume
20
Issue
13
fYear
1984
Firstpage
568
Lastpage
570
Abstract
The photodisplacement microscopy for depth probing and control of a silicon plate cross-section homogenity is developed, as the one-arm optical bridge with interference Newton fringes is used. For determining the thickness of a silicon plate and for visualising its cross-section the frequency dependence of the thermal waves penetration depth is measured.
Keywords
acoustic microscopes; acousto-optical effects; measurement by laser beam; nondestructive testing; thickness measurement; IC testing; NDT; Si plate; acoustic microscopes; acousto-optics; cross-section homogeneity control; depth probing; frequency dependence; interference Newton fringes; measurement by laser beam; nondestructive testing; one-arm optical bridge; photodisplacement microscopy; thermal waves penetration depth; thickness determination;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19840394
Filename
4248865
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