Method of structuring a glass element and structured glass element produced thereby

US12318869B2 · kind B2 · utility

Assignee

• Schott AG · DE

Inventors

• Andreas Ortner · Gau-Algesheim, DE
• Fabian Wagner · Heubach, DE
• Markus Heiss-Chouquet · Bischofsheim, DE
• Annika Hörberg · Mainz, DE
• Michael Drisch · Mainz, DE
• Vanessa Glässer · Mainz, DE
• Lukas Walter · Oestrich-Winkel, DE
• Andreas Koglbauer · Trebur, DE
• Lars Müller · Bleiswijk, NL
• David Sohr · Mainz, DE
• Bernd Hoppe · Ingelheim am Rhein, DE
• Michael Kluge · Ludwigshafen, DE

Key dates

• Filing date: Dec 9, 2021
• Grant date: Jun 3, 2025
• Expiry date: Aug 22, 2043

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B23K2103/54
• WIPO field: Machine tools
• WIPO sector: Mechanical engineering

Abstract

A method of structuring a glass element having a first side face and a second side face is provided. The method includes the steps of: producing a filament-shaped flaw in the glass element with a pulsed laser beam along a focus line; etching to remove glass in the filament-shaped flaw to form a wall extending from the first side face towards the second side face, the wall having a boundary line that is tapered at a vertex between the wall and the first side face with a taper angle with respect to a perpendicular of the first side face; and adjusting the taper angle by controlling a feature of the focus line. The feature is selected from a group consisting of a position of the focus line, a length of the focus line, an intensity distribution of the focus line, and any combinations thereof.