Schott Ag

Vanessa Hiller

Andreas Ortner

Fabian Wagner

Andreas Roters

Hauke Esemann

Stephanie Mangold

Markus Heiss-Chouquet

Matthias Jotz

Markus Heiß-Chouquet

Laura Brueckbauer

Frank-Thomas Lentes

Ulrich Peuchert

Lutz Parthier

Florian Resch

Laura Brückbauer

Markus Heiß-Choquet

A method for producing a cavity in a substrate composed of hard brittle material is provided. A laser beam of an ultrashort pulse laser is directed a side surface of the substrate and is concentrated by a focusing optical unit to form an elongated focus in the substrate. Incident energy of the laser beam produces a filament-shaped flaw in a volume of the substrate. The filament-shaped flaw extends into the volume to a predetermined depth and does not pass through the substrate. To produce the filament-shaped flaw, the ultrashort pulse laser radiates in a pulse or a pulse packet having at least two successive laser pulses. After at least two filament-shaped flaws are introduced, the substrate is exposed to an etching medium which removes material of the substrate and widens the at least two filament-shaped flaws to form filaments. At least two filaments are connected to form a cavity.

Method for producing fine structures in the volume of a substrate composed of hard brittle material

An article of transparent and brittle material, such as glass, glass ceramic, ceramic or crystals. The article includes at least one exchange layer and at least one bulk layer. The at least one exchange layer includes at least one kind of cation ionwith an increased proportion compared to the at least one bulk layer and at least one kind of cation ionwith a reduced proportion compared to the at least one bulk layer. The article is in particularly used as a display cover for flexible displays or flexible protective foils, for example in smartphones or tablets or TV sets. The article can also be used as a substrate for an electronic component such as an OLED or LED.

Bendable or foldable articles as well as methods for the production thereof

A plate-like glass element including a pair of opposite side faces and at least one channel introduced into the glass of the glass element. The at least one channel joins the side faces and opens into the side faces. The at least one channel has a rounded wall and a transverse dimension of less than 100 &#x3bc;m. The at least one channel extends in a longitudinal direction that runs transverse to the side faces. The rounded wall of the at least one channel has a plurality of rounded, substantially hemispherical depressions.

Structured plate-like glass element and process for the production thereof

The present disclosure relates to bendable and/or foldable articles and uses thereof and to a method of providing bendable and/or foldable articles. The articles are of translucent and brittle material, such as glass, glass ceramic, ceramic or crystals. The articles may be used as a display cover such as a protecting cover in displays in, for example, smartphones, tablet computers, or TV devices. The articles may also be used as a substrate for electronic components, such as OLEDs or LEDs.

Bendable and/or foldable articles and method of providing bendable and/or foldable articles

Growing community of inventors

Mainz, Germany

Vanessa Hiller