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:
Oct. 06, 2015
Filed:
Dec. 09, 2013
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Yumi Nakajima, Yokkaichi, JP;
Kentaro Matsunaga, Yokkaichi, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
According to one embodiment, first, on a process object, a hydrophilic guide pattern including a first hole forming pattern having a first hole diameter and a second hole forming pattern having a second hole diameter is formed. Then, above the guide pattern, a frame pattern having a first opening region in a forming region of a plurality of the first hole forming patterns and a second opening region in a forming region of a plurality of the second hole forming patterns is formed. Then, a first solution including a first block copolymer having a hydrophilic polymer chain and a hydrophobic polymer chain is supplied to the first opening region to condense the first block copolymer. The hydrophilic polymer chain is then removed to reduce the diameter of the first hole forming pattern to a third hole diameter that is smaller than the first hole diameter.