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:
Jan. 29, 2019

Filed:

Feb. 23, 2017
Applicant:

Toshiba Memory Corporation, Tokyo, JP;

Inventors:

Junichi Igarashi, Nagoya, JP;

Katsuhiro Sato, Yokohama, JP;

Masaaki Hirakawa, Yokohama, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/02 (2006.01); B08B 3/08 (2006.01); B08B 3/10 (2006.01); H01L 21/28 (2006.01); H01L 21/311 (2006.01); H01L 21/3213 (2006.01); H01L 27/108 (2006.01);
U.S. Cl.
CPC ...
H01L 21/0206 (2013.01); B08B 3/08 (2013.01); B08B 3/10 (2013.01); H01L 21/02057 (2013.01); H01L 21/02068 (2013.01); H01L 21/28273 (2013.01); H01L 21/28282 (2013.01); H01L 21/31116 (2013.01); H01L 21/31144 (2013.01); H01L 21/32136 (2013.01); H01L 21/32139 (2013.01); H01L 27/1085 (2013.01);
Abstract

A method of manufacturing a semiconductor device including attaching, by a liquid treatment, a first liquid to a surface of a semiconductor substrate having a fine pattern formed therein; substituting the first liquid attached to the surface of the semiconductor substrate with a solution, the solution comprising a sublimate dissolved in a second liquid; vaporizing the second liquid and precipitating the sublimate to the surface of the semiconductor substrate to forma solid precipitate comprising the sublimate; and removing the precipitate by sublimation. For example, the sublimate may be a material having at least two carboxyl groups bonded to cyclohexane or a material formed of two carboxyl groups bonded to benzene with the bonding sites of the two carboxyl groups being adjacent to one another.


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