Microscope and method for measuring surface topography in a quantitative and optical manner

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United States of America Patent

APP PUB NO 20030161038A1
SERIAL NO

10311008

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Abstract

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The invention relates to a microscope and a method for measuring the surface topography of a workpiece in a quantitative and optical manner. The invention includes a differential interference contrast microscope embodiment according to Nomarski, comprising a light source, a polariser, a changeable Nomarski prism and an analyser. The light source has a narrow frequency spectrum and/or is provided with a special filter having a narrow frequency spectrum; and the microscope is provided with a phase displacement interferometry evaluation unit.

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Patent Owner(s)

Patent OwnerAddress
CARL ZEISS A GERMAN COMPANY89518 HEIDENHEIM AN DER BRENZ

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Ringel, Gabriele Braunschweig, DE 2 11
Schmitt, Dirk-Roger Braunschweig, DE 3 21
Tobben, Helmut Braunschweig, DE 2 11

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