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.

Date of Patent:
Jun. 11, 2024

Filed:

Oct. 21, 2019
Applicant:

Asml Netherlands B.v., Veldhoven, NL;

Inventors:

Pavel Smal, Eindhoven, NL;

Inez Marlena Sochal, Tilburg, NL;

Gautam Sarma, Eindhoven, NL;

Assignee:

ASML NETHERLANDS B.V., Veldhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 9/00 (2006.01); G03F 7/00 (2006.01);
U.S. Cl.
CPC ...
G03F 9/7046 (2013.01); G03F 7/70625 (2013.01); G03F 7/70633 (2013.01); G03F 7/70683 (2013.01);
Abstract

A method for determining a layout of mark positions across a patterning device or substrate, the method including: obtaining a model configured to model data associated with measurements performed on the patterning device or substrate at one or more mark positions; obtaining an initial mark layout including initial mark positions; reducing the initial mark layout by removal of one or more mark positions to obtain a plurality of reduced mark layouts, each reduced mark layout obtained by removal of a different mark position from the initial mark layout; determining a model uncertainty metric associated with usage of the model for each reduced mark layout out of the plurality of reduced mark layouts; and selecting one or more reduced mark layouts based on its associated model uncertainty metric.


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