Patents by Inventor Uwe Hempelmann

Uwe Hempelmann 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).

  • Publication number: 20230113280
    Abstract: The present invention relates to strongly coloured manganese ferrite colour pigments, to the production thereof and to the use thereof.
    Type: Application
    Filed: March 12, 2021
    Publication date: April 13, 2023
    Applicant: LANXESS Deutschland GmbH
    Inventors: Carsten Rosenhahn, Uwe Hempelmann
  • Patent number: 10585356
    Abstract: Microlithographic projection exposure apparatus (100) has a projection lens (150) configured to image an object plane (155) onto an image plane (156), wherein an immersion liquid is at least temporarily provided during operation of the projection exposure apparatus between the projection lens and the image plane, wherein a measurement structure (121) is arranged in the immersion liquid, and wherein the measurement structure is configured to generate a measurement pattern. The projection exposure apparatus also has a measurement device (130, 160) configured to measure the measurement pattern. The measurement structure has an absorption layer (125) including silicon oxide and/or silicon oxynitride and/or nitride.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: March 10, 2020
    Assignee: CARL ZEISS SMT GMBH
    Inventors: Eugen Foca, Frank Schadt, Uwe Hempelmann, Frank Schleicher
  • Publication number: 20180373163
    Abstract: Microlithographic projection exposure apparatus (100) has a projection lens (150) configured to image an object plane (155) onto an image plane (156), wherein an immersion liquid is at least temporarily provided during operation of the projection exposure apparatus between the projection lens and the image plane, wherein a measurement structure (121) is arranged in the immersion liquid, and wherein the measurement structure is configured to generate a measurement pattern. The projection exposure apparatus also has a measurement device (130, 160) configured to measure the measurement pattern. The measurement structure has an absorption layer (125) including silicon oxide and/or silicon oxynitride and/or nitride.
    Type: Application
    Filed: August 31, 2018
    Publication date: December 27, 2018
    Inventors: Eugen FOCA, Frank SCHADT, Uwe HEMPELMANN, Frank SCHLEICHER
  • Patent number: 9274440
    Abstract: An arrangement for and a method of characterizing the polarization properties of an optical system, in particular an optical system of a microlithographic projection exposure apparatus. The arrangement includes at least one polarization state generator (130, 230, 330) which sets a defined polarization state of radiation incident on the optical system, and a polarization state detector (140, 240, 340) adapted to measure the exit polarization state of radiation issuing from the optical system, wherein the optical system is designed for a working wavelength of less than 15 nm, and wherein the polarization state generator and/or the polarization state detector are so designed that their polarization-optical action on an incident light beam is substantially constant over an angle spectrum of the light beam of at least 10°.
    Type: Grant
    Filed: July 27, 2012
    Date of Patent: March 1, 2016
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Uwe Hempelmann, Markus Mengel, Peter Huber
  • Publication number: 20130021592
    Abstract: An arrangement for and a method of characterising the polarisation properties of an optical system, in particular an optical system of a microlithographic projection exposure apparatus. The arrangement includes at least one polarisation state generator (130, 230, 330) which sets a defined polarisation state of radiation incident on the optical system, and a polarisation state detector (140, 240, 340) adapted to measure the exit polarisation state of radiation issuing from the optical system, wherein the optical system is designed for a working wavelength of less than 15 nm, and wherein the polarisation state generator and/or the polarisation state detector are so designed that their polarisation-optical action on an incident light beam is substantially constant over an angle spectrum of the light beam of at least 10°.
    Type: Application
    Filed: July 27, 2012
    Publication date: January 24, 2013
    Applicant: CARL ZEISS SMT GMBH
    Inventors: Uwe HEMPELMANN, Markus MENGEL, Peter HUBER
  • Patent number: 6803026
    Abstract: This invention relates to carbon black pellets obtained by compaction of carbon black powder in the presence of auxiliary substances, which pellets, despite the compaction, surprisingly exhibit greater color intensity than the powders on which they are based.
    Type: Grant
    Filed: September 14, 2000
    Date of Patent: October 12, 2004
    Assignee: Bayer Chemicals AG
    Inventors: Günter Linde, Uwe Hempelmann, Manfred Eitel