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:
Aug. 23, 2022

Filed:

Mar. 13, 2018
Applicant:

Asml Holding N.v., Veldhoven, NL;

Inventors:

Parag Vinayak Kelkar, Danbury, CT (US);

David Hart Peterson, Milford, CT (US);

Assignee:

ASML Holding N.V., Veldhoven, NL;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02B 1/111 (2015.01); G03F 7/20 (2006.01);
U.S. Cl.
CPC ...
G02B 1/111 (2013.01); G03F 7/70941 (2013.01); G03F 7/70958 (2013.01); G02B 2207/109 (2013.01);
Abstract

A method of forming an anti-reflection layer, the method including applying a first mixture to an object, the first mixture made from a combination of aluminum tri-sec-butoxide (ATSB), a first chelating agent, water and an alcohol; removing a majority of the alcohol from the applied first mixture; after the removing, applying a second mixture to the object, the second mixture made from a combination of aluminum tri-sec-butoxide, a second chelating agent different than the first chelating agent, water and an alcohol; and removing a majority of the alcohol from the applied second mixture, wherein the applied first and second mixtures are used to form the anti-reflection layer.


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