Device and method for examining the smoothness of a sample surface
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United States of America Patent
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-
Oct 3, 2000
Grant Date -
N/A
app pub date -
Feb 18, 1998
filing date -
Feb 21, 1997
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A device for examining the smoothness of a sample surface includes a scattered-light instrument for scanning the surface with a focused laser beam and for detecting scattered light which is reflected during the scanning of the surface. There is also an instrument for microscopic examination of prominently light-scattering regions of the surface after they have been identified using the scattered-light instrument. This device has an evacuable sample chamber, in which the sample is placed on a sample holder and which has a transparent window through which the laser beam passes before it strikes the surface of the sample. There is also a method for examining a sample using the device.
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