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US 11,891,326 B2Granted
Method for processing glass by alkaline etching
AssigneeSchott AG
InventorsAndreas Ortner, Fabian Wagner, Markus Heiss-Chouquet, Michael Drisch, Vanessa Glässer, Annika Hörberg, Marisa Boles-Rehbogen
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Abstract
A method for processing glass is provide. The method includes the steps of providing a glass element and removing glass material from the glass element by etching with an alkaline etching medium in an organic solvent.
Claims23
A method for processing glass, comprising:
- providing a glass element;
- and
- removing glass material from the glass element, wherein the removing step comprises:
- introducing flaws into the glass element along a prescribed path with a laser beam of an ultrashort pulse laser;
- and
- expanding the flaws in the glass element by etching with an alkaline etching medium in an organic solvent until the flaws connect,
- wherein the alkaline etching medium has a water content of less than 5 percent by weight (wt-%) and the organic solvent comprises an alcohol.
4 more elements
A method for processing glass, comprising:
- providing a glass element;
- introducing flaws into the glass element along a prescribed path with a laser beam of an ultrashort pulse laser;
- and
- expanding the flaws in the glass element by etching with an alkaline etching medium in an organic solvent, wherein the alkaline etching medium has a water content of less than 5 percent by weight (wt-%) and the organic solvent comprises a mixture of polyvalent alcohols.
1 more element
A method for processing glass, comprising:
- providing a glass element;
- introducing flaws into the glass element along a prescribed path with a laser beam of an ultrashort pulse laser;
- and
- expanding the flaws in the glass element by etching with an alkaline etching medium in an organic solvent at a temperature of more than 170° C., wherein the alkaline etching medium has a water content of less than 5 percent by weight (wt-%), wherein the etching medium contains water mainly due to ambient humidity.
1 more element
Dependencies are inferred from the claim text.