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:
Feb. 17, 2026

Filed:

Mar. 31, 2022
Applicant:

Screen Holdings Co., Ltd., Kyoto, JP;

Inventors:

Yu Yamaguchi, Kyoto, JP;

Masaki Inaba, Kyoto, JP;

Masayuki Otsuji, Kyoto, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/02 (2006.01);
U.S. Cl.
CPC ...
H01L 21/02054 (2013.01);
Abstract

The present invention includes a liquid film formation step of supplying a processing liquid in which a sublimation drying processing agent obtained by mixing a first sublimable substance and a second sublimable substance which are different from each other in a eutectic composition or a near-eutectic composition is liquefied, onto a front surface of a substrate on which a pattern is formed, to thereby form a liquid film of the processing liquid on the front surface of the substrate, a solidified film formation step of solidifying the liquid film of the processing liquid, to thereby form a solidified film of the sublimation drying processing agent, and a sublimation step of sublimating the solidified film, to thereby remove the solidified film from the front surface of the substrate.


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