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. 11, 2021

Filed:

Dec. 15, 2016
Applicant:

Sakai Display Products Corporation, Sakai, JP;

Inventors:

Yoshiaki Matsushima, Sakai, JP;

Takeshi Uno, Sakai, JP;

Yuta Sugawara, Sakai, JP;

Kota Imanishi, Sakai, JP;

Nobutake Nodera, Sakai, JP;

Takao Matsumoto, Sakai, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/02 (2006.01); B23K 26/352 (2014.01); B23K 26/18 (2006.01); H01L 21/268 (2006.01); H01L 21/67 (2006.01); H01L 27/12 (2006.01);
U.S. Cl.
CPC ...
H01L 21/0268 (2013.01); B23K 26/18 (2013.01); B23K 26/352 (2015.10); H01L 21/268 (2013.01); H01L 21/67115 (2013.01); H01L 27/1274 (2013.01);
Abstract

Provided are a laser annealing apparatus, a laser annealing method, and a mask with which scan nonuniformity can be decreased. According to the present invention, all or some openings of a plurality of openings are configured so that a partial subregion of a prescribed region is irradiated with laser light. The plurality of openings are configured so that, between prescribed regions irradiated with laser light via a group of openings in one row arranged in a row direction and prescribed regions irradiated with laser light via a group of openings in another row arranged in the row direction, the number of times of laser light radiations in subregions having the same occupying region is the same, and at least two openings of a group of openings arranged in a column direction have different positions or shapes.


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