Schott Ag

Sabine Lehnicke

Ulrich Peuchert

Bernd Hoppe

Christian Kunert

Kurt Nattermann

Stephan Behle

Volker Plapper

Paul Kissl

Frank Büllesfeld

Wolfgang Moehl

Dirk Weidmann

Martin Zimmermann

An apparatus for producing holes in dielectric workpieces in the form of thin sheets and substrates, in particular of glass or glass-like materials and semiconductors is provided. The apparatus includes individual high-voltage electrodes that are symmetrically arranged on an electrode holder around the hole to be produced in the workpiece. The apparatus also includes individual counter electrodes that are arranged on a counter electrode holder. The electrodes and counter electrodes can be connected in a permutating manner to a high-voltage source for the discharge of high-voltage flashovers.

Generation of holes using multiple electrodes

A process for shaping a body with elongate structures on its surface, bodies produced using the process, and to apparatuses having these bodies are provided. For this purpose, a preform is provided, at the surface, with structures which are elongate along one direction, the preform is heated at least in one region and the preform is drawn in the heated state until at least part of the preform has adopted a cross section which substantially corresponds to the desired cross-sectional shape or final cross-sectional shape. The preform is heated by means of radiation which has a spectral distribution which is such that at most half of the radiation power is absorbed during a single pass through the material.

Method and device for shaping a structured body and body produced according to said method

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Munich, Georgia

Sabine Lehnicke