The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 15, 2008
Filed:
Jan. 24, 2007
Applicant:
Walter Lee Smith, Danville, CA (US);
Inventor:
Walter Lee Smith, Danville, CA (US);
Assignee:
KLA-Tencor Corp., Milpitas, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G01J 4/00 (2006.01); G01N 21/00 (2006.01);
U.S. Cl.
CPC ...
Abstract
An apparatus for scatterometry measurements is disclosed. The apparatus includes a modulated pump source for exciting the sample. A separate probe beam is directed to interact with the sample and the modulated optical response is measured. The measured data is subjected to a scatterometry analysis in order to evaluate geometrical sample features that induce light scattering.