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Title: Extended surface parallel coating inspection method

Patent ·
OSTI ID:1175677

Techniques for rapidly characterizing reflective surfaces and especially multi-layer EUV reflective surfaces of optical components involve illuminating the entire reflective surface instantaneously and detecting the image far field. The technique provides a mapping of points on the reflective surface to corresponding points on a detector, e.g., CCD. This obviates the need to scan a probe over the entire surface of the optical component. The reflective surface can be flat, convex, or concave.

Research Organization:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Organization:
USDOE
DOE Contract Number:
AC03-76SF00098
Assignee:
EUV LLC (Santa Clara, CA)
Patent Number(s):
7,016,030
Application Number:
10/689,171
OSTI ID:
1175677
Country of Publication:
United States
Language:
English