Patents by Inventor Gregor HASPER

Gregor HASPER has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10987760
    Abstract: Method of manufacturing holding plate (11) including ceramic material of several chemical elements and configured for holding apparatus (10) for holding a component by electrostatic forces or vacuum, includes the steps of material removal from holding plate (11) by laser ablation, wherein by laser irradiation (1) protrusions (13) are formed on holding plate (11), end faces (13.1) of which span a carrier surface for the component, and surface modification of holding plate (11) by laser irradiation (1), wherein irradiation parameters of laser irradiation (1) are set such that at least one of the chemical elements of the ceramic material is enriched on the surface of holding plate (11). A method is also described of manufacturing holding apparatus (10) for holding a component by electrostatic forces or vacuum, holding plate (11) which is produced with the inventive method, and holding apparatus (10) with at least one holding plate (11).
    Type: Grant
    Filed: May 25, 2016
    Date of Patent: April 27, 2021
    Assignee: BERLINER GLAS KGAA HERBERT KUBATZ GMBH & CO.
    Inventors: Ralf Hammer, Stefan Hoescheler, Mike Fischer, Gregor Hasper
  • Patent number: 10475689
    Abstract: A method for processing a holding plate (10) of a clamping device (in particular clamp wafer chuck) for holding a component, in particular a wafer, wherein the holding plate (10) has a SiC-based surface (12) on which at least one protruding, SiC-based surface element (13) is formed, includes the steps of locally limited heating of the holding plate (10) in a predetermined surface section and creating the surface element (13) at the predetermined surface section by chemical vapor deposition, in particular by means of laser CVD. Applications of the method exist in repairing a holding plate (10) of a clamping device or manufacturing a holding plate (10) of a clamping device. Furthermore, a holding plate of a clamping device for holding a component, in particular a wafer, is described.
    Type: Grant
    Filed: January 17, 2018
    Date of Patent: November 12, 2019
    Assignee: Berliner Glas KGaA Herbert Kubatz GmbH & Co.
    Inventors: Volker Schmidt, Ralf Hammer, Gregor Hasper, Mike Fischer
  • Publication number: 20180211861
    Abstract: A method for processing a holding plate (10) of a clamping device (in particular clamp wafer chuck) for holding a component, in particular a wafer, wherein the holding plate (10) has a SiC-based surface (12) on which at least one protruding, SiC-based surface element (13) is formed, includes the steps of locally limited heating of the holding plate (10) in a predetermined surface section and creating the surface element (13) at the predetermined surface section by chemical vapor deposition, in particular by means of laser CVD. Applications of the method exist in repairing a holding plate (10) of a clamping device or manufacturing a holding plate (10) of a clamping device. Furthermore, a holding plate of a clamping device for holding a component, in particular a wafer, is described.
    Type: Application
    Filed: January 17, 2018
    Publication date: July 26, 2018
    Inventors: Volker SCHMIDT, Ralf HAMMER, Gregor HASPER, Mike FISCHER
  • Publication number: 20160354864
    Abstract: Method of manufacturing holding plate (11) including ceramic material of several chemical elements and configured for holding apparatus (10) for holding a component by electrostatic forces or vacuum, includes the steps of material removal from holding plate (11) by laser ablation, wherein by laser irradiation (1) protrusions (13) are formed on holding plate (11), end faces (13.1) of which span a carrier surface for the component, and surface modification of holding plate (11) by laser irradiation (1), wherein irradiation parameters of laser irradiation (1) are set such that at least one of the chemical elements of the ceramic material is enriched on the surface of holding plate (11). A method is also described of manufacturing holding apparatus (10) for holding a component by electrostatic forces or vacuum, holding plate (11) which is produced with the inventive method, and holding apparatus (10) with at least one holding plate (11).
    Type: Application
    Filed: May 25, 2016
    Publication date: December 8, 2016
    Inventors: Ralf HAMMER, Stefan HOESCHELER, Mike FISCHER, Gregor HASPER