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. 02, 2017

Filed:

Jun. 24, 2016
Applicant:

Ultratech, Inc., San Jose, CA (US);

Inventor:

Serguei Anikitchev, Belmont, CA (US);

Assignee:

Ultratech, Inc., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 21/428 (2006.01); G02B 27/09 (2006.01); B23K 26/00 (2014.01); H01L 21/324 (2006.01); H01L 21/322 (2006.01); G02B 17/06 (2006.01); H01L 21/477 (2006.01); B23K 26/06 (2014.01); B23K 26/073 (2006.01); B23K 26/08 (2014.01); B23K 26/354 (2014.01); B23K 26/352 (2014.01); B23K 26/066 (2014.01); B23K 26/082 (2014.01); G02B 17/00 (2006.01); H01L 21/225 (2006.01); H01L 21/268 (2006.01); B23K 103/00 (2006.01); B23K 101/40 (2006.01);
U.S. Cl.
CPC ...
G02B 27/0927 (2013.01); B23K 26/0006 (2013.01); B23K 26/0066 (2013.01); B23K 26/066 (2015.10); B23K 26/0643 (2013.01); B23K 26/0648 (2013.01); B23K 26/0738 (2013.01); B23K 26/082 (2015.10); B23K 26/083 (2013.01); B23K 26/0823 (2013.01); B23K 26/352 (2015.10); B23K 26/354 (2015.10); G02B 17/008 (2013.01); G02B 17/061 (2013.01); G02B 27/0983 (2013.01); G02B 27/0988 (2013.01); H01L 21/2253 (2013.01); H01L 21/268 (2013.01); H01L 21/322 (2013.01); H01L 21/324 (2013.01); H01L 21/428 (2013.01); H01L 21/477 (2013.01); B23K 2201/40 (2013.01); B23K 2203/56 (2015.10);
Abstract

A line-forming optical system and method are disclosed that form a line image with high-efficiency. A method includes forming a laser beam having a first intensity profile with a Gaussian distribution in at least a first direction and passing at least 50% of the laser beam in the first direction to form a first transmitted light. The method also includes: focusing the first transmitted light at an intermediate image plane to define a second intensity profile having a central peak and first side peaks immediately adjacent the central peak; then truncating the second intensity profile within each of first side peaks to define a second transmitted light; and then forming the line image at an image plane from the second transmitted light.


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