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.:

US 8946594 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 03, 2015

Filed:

Oct. 10, 2012
Applicant:

Applied Materials, Inc., Santa Clara, CA (US);

Inventors:

Douglas E. Holmgren, Portland, OR (US);

Samuel C. Howells, Portland, OR (US);

Assignee:

Applied Materials, Inc., Santa Clara, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23K 26/06 (2014.01); G02B 27/10 (2006.01); H01L 21/268 (2006.01); G02B 27/09 (2006.01); B23K 26/00 (2014.01);
U.S. Cl.
CPC ...
H01L 21/268 (2013.01); B23K 26/06 (2013.01); G02B 27/10 (2013.01); G02B 27/0961 (2013.01); G02B 27/0966 (2013.01); B23K 26/00 (2013.01); G02B 27/0911 (2013.01);
Abstract

Embodiments of the invention provide an apparatus including a substrate support, a source of laser radiation emitting laser radiation along an optical path, and an illumination optics disposed along the optical path. The illumination optics includes a set of slow-axis and fast-axis lenses. The apparatus further includes a homogenizer disposed between of the illumination optics and the substrate support along the optical path. The homogenizer includes a first and a second micro-optic lenslet arrays of cylindrical lenses, wherein the second micro-optic lenslet array of cylindrical lenses has a relatively larger lenslet pitch than that of the first micro-optic lenslet array of cylindrical lenses, and lenslet axes of the first micro-optic lenslet array and lenslet axes of the second micro-optic lenslet array are oriented along an axis that is parallel to a fast axis of the source of laser radiation.


Find Patent Forward Citations

Holmgren, Douglas. (2015). Optical design for line generation using microlens array (U.S. Patent No. 8946594). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8946594

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