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:
Jan. 10, 2023
Filed:
Jan. 05, 2021
Applicant:
Asml Netherlands B.v., Veldhoven, NL;
Inventors:
Marinus Johannes Maria Van Dam, Venlo, NL;
Arie Jeffrey Den Boef, Waalre, NL;
Nitesh Pandey, Eindhoven, NL;
Assignee:
ASML Netherland B.V., Veldhoven, NL;
Primary Examiner:
Int. Cl.
CPC ...
G01B 11/25 (2006.01); G02F 1/01 (2006.01); G02F 1/33 (2006.01);
U.S. Cl.
CPC ...
G01B 11/2513 (2013.01); G02F 1/0136 (2013.01); G02F 1/33 (2013.01);
Abstract
A metrology apparatus for determining a characteristic of interest of a structure on a substrate, the apparatus comprising: a radiation source configured to generate illumination radiation; at least two illumination branches comprising at least one optical fiber and configured to illuminate a structure on a substrate from different angles; and a radiation switch configured to receive the illumination radiation and transfer at least part of the radiation to a selectable one of the at least two illumination branches.