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.:
Date of Patent:
Jul. 06, 2021
Filed:
Jan. 29, 2020
Corning Incorporated, Corning, NY (US);
Heather Debra Boek, Corning, NY (US);
Andreas Simon Gaab, Grobenzell, DE;
Garrett Andrew Piech, Corning, NY (US);
Alranzo Boh Ruffin, Painted Post, NY (US);
Daniel Arthur Sternquist, Horseheads, NY (US);
Michael Brian Webb, Lindley, NY (US);
Corning Incorporated, Corning, NY (US);
Abstract
A method for processing a transparent workpiece includes directing a pulsed laser beam into the transparent workpiece such that a portion of the pulsed laser beam directed into the transparent workpiece generates an induced absorption within the transparent workpiece, thereby forming a damage line within the transparent workpiece, and the portion of the pulsed laser beam directed into the transparent workpiece includes a wavelength λ, a spot size w, and a Rayleigh range Zthat is greater than where Fis a dimensionless divergence factor comprising a value of 10 or greater. Further, the method for processing the transparent workpiece includes etching the transparent workpiece with an etching vapor to remove at least a portion of the transparent workpiece along the damage line, thereby forming an aperture extending through the at least a portion of the thickness of the transparent workpiece.