Patents by Inventor Thomas Okon

Thomas Okon 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: 10281824
    Abstract: Microlithography projection objectives for imaging into an image plane a pattern arranged in an object plane are described with respect to suppressing false light in such projection objectives.
    Type: Grant
    Filed: January 24, 2017
    Date of Patent: May 7, 2019
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Heiko Feldmann, Daniel Kraehmer, Jean-Claude Perrin, Julian Kaller, Aurelian Dodoc, Vladimir Kamenov, Olaf Conradi, Toralf Gruner, Thomas Okon, Alexander Epple
  • Publication number: 20170192362
    Abstract: Microlithography projection objectives for imaging into an image plane a pattern arranged in an object plane are described with respect to suppressing false light in such projection objectives.
    Type: Application
    Filed: January 24, 2017
    Publication date: July 6, 2017
    Inventors: Heiko Feldmann, Daniel Kraehmer, Jean-Claude Perrin, Julian Kaller, Aurelian Dodoc, Vladimir Kamenov, Olaf Conradi, Toralf Gruner, Thomas Okon, Alexander Epple
  • Patent number: 9097984
    Abstract: Microlithography projection objectives for imaging into an image plane a pattern arranged in an object plane are described with respect to suppressing false light in such projection objectives.
    Type: Grant
    Filed: July 22, 2014
    Date of Patent: August 4, 2015
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Heiko Feldmann, Daniel Kraehmer, Jean-Claude Perrin, Julian Kaller, Aurelian Dodoc, Vladimir Kamenov, Olaf Conradi, Toralf Gruner, Thomas Okon, Alexander Epple
  • Publication number: 20140333913
    Abstract: Microlithography projection objectives for imaging into an image plane a pattern arranged in an object plane are described with respect to suppressing false light in such projection objectives.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 13, 2014
    Inventors: Heiko Feldmann, Daniel Kraehmer, Jean-Claude Perrin, Julian Kaller, Aurelian Dodoc, Vladimir Kamenov, Olaf Conradi, Toralf Gruner, Thomas Okon, Alexander Epple
  • Publication number: 20140293256
    Abstract: Microlithography projection objectives for imaging into an image plane a pattern arranged in an object plane are described with respect to suppressing false light in such projection objectives.
    Type: Application
    Filed: June 10, 2014
    Publication date: October 2, 2014
    Inventors: Heiko Feldmann, Daniel Kraehmer, Jean-Claude Perrin, Julian Kaller, Aurelian Dodoc, Vladimir Kamenov, Olaf Conradi, Toralf Gruner, Thomas Okon, Alexander Epple
  • Patent number: 8659744
    Abstract: A method for correcting at least one image defect of a projection objective of a lithography projection exposure machine, the projection objective comprising an optical arrangement composed of a plurality of lenses and at least one mirror, the at least one mirror having an optically operative surface that can be defective and is thus responsible for the at least one image defect, comprises the steps of: at least approximately determining a ratio VM of principal ray height hMH to marginal ray height hMR at the optically operative surface of the at least one mirror, at least approximately determining at least one optically operative lens surface among the lens surfaces of the lenses, at which the magnitude of a ratio VL of principal ray height hLH to marginal ray height hLR comes at least closest to the ratio VM, and selecting the at least one determined lens surface for the correction of the image defect.
    Type: Grant
    Filed: April 5, 2012
    Date of Patent: February 25, 2014
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Wilhelm Ulrich, Thomas Okon, Norbert Wabra, Toralf Gruner, Boris Bittner, Volker Graeschus
  • Publication number: 20120188636
    Abstract: A method for correcting at least one image defect of a projection objective of a lithography projection exposure machine, the projection objective comprising an optical arrangement composed of a plurality of lenses and at least one mirror, the at least one mirror having an optically operative surface that can be defective and is thus responsible for the at least one image defect, comprises the steps of: at least approximately determining a ratio VM of principal ray height hMH to marginal ray height hMR at the optically operative surface of the at least one mirror, at least approximately determining at least one optically operative lens surface among the lens surfaces of the lenses, at which the magnitude of a ratio VL of principal ray height hLH to marginal ray height hLR comes at least closest to the ratio VM, and selecting the at least one determined lens surface for the correction of the image defect.
    Type: Application
    Filed: April 5, 2012
    Publication date: July 26, 2012
    Applicant: Carl Zeiss SMT GmbH
    Inventors: Wilhelm Ulrich, Thomas Okon, Norbert Wabra, Toralf Gruner, Boris Bittner, Volker Graeschus
  • Patent number: 8174676
    Abstract: A method for correcting at least one image defect of a projection objective of a lithography projection exposure machine, the projection objective comprising an optical arrangement composed of a plurality of lenses and at least one mirror, the at least one mirror having an optically operative surface that can be defective and is thus responsible for the at least one image defect, comprises the steps of: at least approximately determining a ratio VM of principal ray height hMH to marginal ray height hMR at the optically operative surface of the at least one mirror, at least approximately determining at least one optically operative lens surface among the lens surfaces of the lenses, at which the magnitude of a ratio VL of principal ray height hLH to marginal ray height hLR comes at least closest to the ratio VM, and selecting the at least one determined lens surface for the correction of the image defect.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: May 8, 2012
    Assignee: Carl Zeiss SMT GmbH
    Inventors: Wilhelm Ulrich, Thomas Okon, Norbert Wabra, Toralf Gruner, Boris Bittner, Volker Graeschus
  • Publication number: 20110279803
    Abstract: A method for correcting at least one image defect of a projection objective of a lithography projection exposure machine, the projection objective comprising an optical arrangement composed of a plurality of lenses and at least one mirror, the at least one mirror having an optically operative surface that can be defective and is thus responsible for the at least one image defect, comprises the steps of: at least approximately determining a ratio VM of principal ray height hMH to marginal ray height hMR at the optically operative surface of the at least one mirror, at least approximately determining at least one optically operative lens surface among the lens surfaces of the lenses, at which the magnitude of a ratio VL of principal ray height hLH to marginal ray height hLR comes at least closest to the ratio VM, and selecting the at least one determined lens surface for the correction of the image defect.
    Type: Application
    Filed: July 20, 2011
    Publication date: November 17, 2011
    Applicant: CARL ZEISS SMT GMBH
    Inventors: Wilhelm Ulrich, Thomas Okon, Norbert Wabra, Toralf Gruner, Boris Bittner, Volker Graeschus
  • Publication number: 20090115986
    Abstract: Microlithography projection objectives for imaging into an image plane a pattern arranged in an object plane are described with respect to suppressing false light in such projection objectives.
    Type: Application
    Filed: May 23, 2006
    Publication date: May 7, 2009
    Applicant: Carl Zeiss SMT AG
    Inventors: Heiko Feldmann, Daniel Kraehmer, Jean-Claude Perrin, Julian Kaller, Aurelian Dodoc, Vladimir Kamenov, Olaf Conradi, Toralf Gruner, Thomas Okon, Alexander Epple
  • Publication number: 20070019305
    Abstract: A method for correcting at least one image defect of a projection objective of a lithography projection exposure machine, the projection objective comprising an optical arrangement composed of a plurality of lenses and at least one mirror, the at least one mirror having an optically operative surface that can be defective and is thus responsible for the at least one image defect, comprises the steps of: at least approximately determining a ratio VM of principal ray height hMH to marginal ray height hMR at the optically operative surface of the at least one mirror, at least approximately determining at least one optically operative lens surface among the lens surfaces of the lenses, at which the magnitude of a ratio VL of principal ray height hLH to marginal ray height hLR comes at least closest to the ratio VM, and selecting the at least one determined lens surface for the correction of the image defect.
    Type: Application
    Filed: June 30, 2006
    Publication date: January 25, 2007
    Inventors: Wilhelm Ulrich, Thomas Okon, Norbert Wabra, Toralf Gruner, Boris Bittner, Volker Graeschus