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.
Patent No.:
Date of Patent:
Jun. 25, 2019
Filed:
Feb. 10, 2016
Tokyo Electron Limited, Tokyo, JP;
Makoto Muramatsu, Koshi, JP;
Tadatoshi Tomita, Koshi, JP;
Hisashi Genjima, Koshi, JP;
Gen You, Koshi, JP;
Takahiro Kitano, Tokyo, JP;
Takanori Nishi, Koshi, JP;
Tokyo Electron Limited, Tokyo, JP;
Abstract
A substrate treatment method using a block copolymer containing a hydrophilic polymer and a hydrophobic polymer includes a polymer separating step, wherein a ratio of a molecular weight of the hydrophilic polymer in the block copolymer is adjusted to 20% to 40% so that the hydrophilic polymers align at positions corresponding to a hexagonal close-packed structure in a plan view after the polymer separating step, and at the polymer separating step, a columnar first hydrophilic polymer is phase-separated on each of circular patterns of hydrophobic coating films and a columnar second hydrophilic polymer is phase-separated between the first hydrophilic polymers, and a diameter of the circular pattern is set so that the first hydrophilic polymers and the second hydrophilic polymers align at positions corresponding to the hexagonal close-packed structure in a plan view.