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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 11766746 B1

PDFFull Text
Date of Patent:
Sep. 26, 2023

Filed:

May. 11, 2020

Phase-modified quasi-non-diffracting laser beams for high angle laser processing of transparent workpieces

Applicant:

Corning Incorporated, Corning, NY (US);

Inventors:

Viacheslav Viacheslavovich Ivanov, Saint Petersburg, RU;

Nikolay Alekseyevich Kaliteevskiy, Saint Petersburg, RU;

Nickolaos Savidis, Painted Post, NY (US);

Petr Mikhaylovich Sterlingov, Saint Petersburg, RU;

Ralf Joachim Terbrueggen, Neuried, DE;

Craig John Mancusi Ungaro, Corning, NY (US);

Assignee:

Corning Incorporated, Corning, NY (US);

Attorney:

Kevin L. Bray

Primary Examiner:

John J Norton

Assistant Examiner:

Franklin Jefferson Wang

Int. Cl.
CPC ...
B23K 26/38 (2014.01); B23K 26/359 (2014.01); B23K 26/073 (2006.01);
U.S. Cl.
CPC ...
B23K 26/38 (2013.01); B23K 26/073 (2013.01); B23K 26/359 (2015.10);
Abstract

A method for processing a transparent workpiece that includes directing a laser beam the transparent workpiece. The laser beam incident to the impingement surface has an oblong angular spectrum and portion of the laser beam directed into the transparent workpiece is a laser beam focal line and generates an induced absorption to produce a defect within the transparent workpiece. The laser beam focal line includes a wavelength λ, a spot size w, a Rayleigh range Zthat is greater than where Fis a dimensionless divergence factor comprising a value of 10 or greater, and an internal beam angle of greater than 10° relative to a plane orthogonal to an impingement surface at an impingement location, such that the defect has a defect angle within the transparent workpiece of greater than 10° relative to a plane orthogonal to the impingement surface at the impingement location.

Find Patent Forward Citations

Ivanov, Viacheslav. (2023). Phase-modified quasi-non-diffracting laser beams for high angle laser processing of transparent workpieces (U.S. Patent No. 11766746). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11766746

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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