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:
Apr. 02, 2024

Filed:

Dec. 02, 2020
Applicant:

Cymer, Llc, San Diego, CA (US);

Inventors:

Yingbo Zhao, San Diego, CA (US);

Md Hossain Toufiq Imam, San Diego, CA (US);

Assignee:

Cymer, LLC, San Diego, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G03F 7/20 (2006.01); G03F 7/00 (2006.01);
U.S. Cl.
CPC ...
G03F 7/70558 (2013.01); G03F 7/70025 (2013.01); G03F 7/70041 (2013.01); G03F 7/70308 (2013.01); G03F 7/70533 (2013.01); G03F 7/70575 (2013.01);
Abstract

A system for deep ultraviolet (DUV) optical lithography includes an optical source apparatus including N optical oscillators, N being an integer number greater than or equal to two, and each of the N optical oscillators is configured to produce a pulse of light in response to an excitation signal; and a control system coupled to the optical source apparatus. The control system is configured to determine a corrected excitation signal for a first one of the N optical oscillators based on an input signal, the input signal including an energy property of a pulse of light produced by another one of the N optical oscillators.


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