Abstract: A composite includes a component and a glass or glass ceramic material. The component has a first coefficient of expansion ?1 and the glass or the glass ceramic material has a second coefficient of expansion ?2. The glass or the glass ceramic material has a surface with a thickness and thickness differences (TTV) within the surface, and thickness fluctuations (LTV). The composite has a residual stress in the glass or the glass ceramic material (WARP), and a geometric and material-physical degree of compatibility KG?4.

Abstract: 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 ?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.

Abstract: A method and apparatus for scoring thin glass for the purpose of score and break separation as well as an accordingly prepared scored thin glass are provided. The scoring tool is pressed onto the thin glass and drawn along the scoring line with an adjusted scoring contact pressure force as a vertical scoring force component. This permits to production of prescored ultrathin glass of Knoop hardness from 350 to 650 with a score depth from 1/20 to ? of the material thickness.

Abstract: Thin glass elements with improved edge strength are provided—from a sheet glass element that has two opposite parallel faces and an edge connecting the faces. The sheet glass element has a thickness of at most 700 ?m. At least a portion of the edge is defined by an edge surface portion that is convexly curved, so that at least one of the faces merges into the edge surface portion, wherein a curved arc of the edge surface portion has a length that is at least 1/30 of the thickness of the sheet glass element. In the region of the convex curvature, the edge surface portion has indentations in the form of furrows.

Abstract: A method and an apparatus for examining the fracture strength of flat samples made of brittle-fracture material are provided. The margin of the respective sample is subjected to tensile stress by bending the material in a circular arc shape.

Abstract: A method for producing miniaturized electronic components is provided, where the miniaturized electronic components are obtained as singularized parts of a sheet-like glass which has structures applied thereon, in particular at least one layer. The method includes the steps of: providing a sheet-like glass toughened at least during a time period, as a substrate material; applying structures onto the substrate, in particular in the form of a sequence of coating processes and by processes for patterning of layers, so that at least portions of the substrate carry structures while other portions of the substrate remain free; subjecting the substrate carrying the structures to a thermal load; and singularizing so that the portions of the substrate carrying structures are obtained in singularized form. A miniaturized electronic component produced in this manner is also provided.

Abstract: A method for winding up a glass ribbon is provided, in which, prior to winding up the glass ribbon, the two surfaces of the glass ribbon are each initially treated with a water-containing medium and subsequently dried so as to produce a defined content of water molecules on the two surfaces, by achieving a saturation of the surfaces of the glass ribbon with water, without bringing about an excess of water molecules. A glass roll is produced in which the electrostatic charge of the glass surface is reduced and, as a result, any undesired excess adherence of the glass surface to an interleaf material is prevented and, in this way, glass breakage, in particular during winding up and/or unwinding of the glass roll, can be markedly reduced.

Abstract: A method is provided for aligning scoring tools and for scoring glass, in particular thin glass, along predetermined scoring lines in preparation for breaking along the score. Glass substrates, in particular thin glass substrates, produced by such method are also provided. The method includes the determination of the actual orientation of the cutting edge of the scoring tool and aligning of the cutting edge to a target orientation of the cutting edge.

Abstract: A packaging unit for a glass wound on a winding shaft includes a transport unit with a mounting support for the winding core which has a transport unit interior part and a transport unit exterior part. The transport unit interior part includes a floor element and side elements. The transport unit exterior part includes a floor element, side elements and a cover element. The mounting support for the winding core is always connected with or formed by two side elements of the transport unit interior part which are located opposite each other. The transport unit interior part is spaced apart from the transport unit exterior part in a floor region by spring elements, so that the transport unit interior part is arranged vibration-decoupled from the transport unit exterior part. A method of utilizing a transport unit for packaging a glass that is wound on a winding core is also disclosed.

Abstract: A method for manufacturing wafer-like thin glass plates having structures thereon and for separating the wafer-like thin glass plates into individual smaller thin glass plates is provided. The method includes the steps of: providing thin glass in wafer size, having an upper surface and a lower surface; producing scorings in the lower surface of the thin glass using a mechanical scoring tool in order to delimit individual smaller thin glass plates from each other; applying structures on the upper surfaces of the individual smaller thin glass plates; applying a blasting liquid to form a moisture film on the thin glass thereby wetting the scorings; and heating the moisture film until it evaporates at least partially thereby causing cleaving of the scorings and singulation of the thin glass into the individual smaller thin glass plates having fresh break edges.

Abstract: A method and apparatus for scoring thin glass for the purpose of score and break separation as well as an accordingly prepared scored thin glass are provided. The scoring tool is pressed onto the thin glass and drawn along the scoring line with an adjusted scoring contact pressure force as a vertical scoring force component. This permits to production of prescored ultrathin glass of Knoop hardness from 350 to 650 with a score depth from 1/20 to ? of the material thickness.

Abstract: A method for processing thin glass is provided. The method includes: providing thin glass having a flat surface and in a form selected from the group consisting of a sheet, plate, ribbon, and film; scoring the flat surface using a mechanical scoring tool to produce one or more scorings that delimit the thin glass into a plurality of thin glass plates and/or delimit one or more edges of the thin glass; applying a blasting liquid to form a moisture film on the thin glass thereby wetting scorings; and heating the moisture film until it evaporates at least partially to cleave the thin glass at the scorings and forming fresh break edges.

Abstract: A device for cutting through workpieces of mechanically brittle and non-metallic material moving at a speed along a separation line after scoring is provided. The device includes a tool holder that is rotatable about an axis of rotation. The tool holder accommodates at least one cutting wire as a cutting tool to introduce a surface rupture or a crack into the workpiece. The cutting wire is disposed in the tool holder in such a manner that the surface rupture or the crack is introduced substantially perpendicular to a feed direction of the workpiece moving at a speed.

Abstract: A method and an apparatus for examining the fracture strength of flat samples made of brittle-fracture material are provided. The margin of the respective sample is subjected to tensile stress by bending the material in a circular arc shape.

Abstract: A packaging unit for a glass wound on a winding shaft includes a transport unit with a mounting support for the winding core which has a transport unit interior part and a transport unit exterior part. The transport unit interior part includes a floor element and side elements. The transport unit exterior part includes a floor element, side elements and a cover element. The mounting support for the winding core is always connected with or formed by two side elements of the transport unit interior part which are located opposite each other. The transport unit interior part is spaced apart from the transport unit exterior part in a floor region by spring elements, so that the transport unit interior part is arranged vibration-decoupled from the transport unit exterior part. A method of utilizing a transport unit for packaging a glass that is wound on a winding core is also disclosed.