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:
May. 13, 2014

Filed:

Feb. 28, 2013
Applicant:

Kabushiki Kaisha Toshiba, Tokyo, JP;

Inventor:

Masafumi Asano, Kanagawa-ken, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L 21/44 (2006.01); H01L 21/768 (2006.01);
U.S. Cl.
CPC ...
H01L 21/76801 (2013.01);
Abstract

According to one embodiment, a pattern forming method is disclosed. The method can include forming an insulating layer on a major surface of a substrate. The method can include forming first and second openings on the insulating layer. The first opening has a first length in a first direction along the major surface, and the second opening has a second length longer than the first length in the first direction. The method can include forming a first pattern in the first opening. The method can include forming a second pattern in the second opening. The method can include forming a self-assembled material film contacting the insulating layer, the first pattern and the second pattern. The method can include forming a third pattern with guidance of the second pattern. In addition, the method can include forming a fourth pattern contacting the first pattern based on the third pattern.


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