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:
Feb. 25, 2025
Filed:
May. 25, 2021
Corning Incorporated, Corning, NY (US);
Valdemaras Juzumas, Vilnius, LT;
Reinhard Moritz Malchus, Munich, DE;
Sasha Marjanovic, Painted Post, NY (US);
Garrett Andrew Piech, Corning, NY (US);
Vytautas Sabonis, Giluziu k. Avizieniu sen Vilniaus raj, LT;
Ralf Joachim Terbrueggen, Neuried, DE;
CORNING INCORPORATED, Corning, NY (US);
Abstract
A method of laser processing a transparent workpiece includes directing a pulsed laser beam into the transparent workpiece. The pulsed laser beam includes pulse bursts having 2 sub-pulses per pulse burst or more, each pulse burst of the pulsed laser beam has a burst duration Tof 380 ns or greater; and the pulsed laser beam forms a pulsed laser beam focal line in the transparent workpiece, the pulsed laser beam focal line inducing absorption in the transparent workpiece, the induced absorption producing a defect in the transparent workpiece. The pulsed laser beam focal line 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.