Patents by Inventor Dirk Preikszas

Dirk Preikszas 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: 8217350
    Abstract: A particle optical arrangement providing an electron microscopy system 3 and an ion beam processing system 7 comprises an objective lens 43 of the electron microscopy system having an annular electrode 59 being a component of the electron microscopy system arranged closest to a position 11 of an object to be examined. Between the annular electrode and a principal axis 9 of the ion beam processing system 7 a shielding electrode 81 is arranged.
    Type: Grant
    Filed: November 23, 2007
    Date of Patent: July 10, 2012
    Assignee: Carl Zeiss NTS GmbH
    Inventor: Dirk Preikszas
  • Publication number: 20120138814
    Abstract: A particle beam device includes a particle beam generator, an objective lens, and first and second deflection systems for deflecting the particle beam in an object plane defined by the objective lens. In a first operating mode, the first deflection system generates a first deflection field and the second deflection system generates a second deflection field. In a second operating mode, the first deflection system generates a third deflection field and the second deflection system generates a fourth deflection field.
    Type: Application
    Filed: November 29, 2011
    Publication date: June 7, 2012
    Applicants: CARL ZEISS NTS LTD., CARL ZEISS NTS GMBH
    Inventors: Dirk Preikszas, Armin Heinz Hayn
  • Patent number: 8129693
    Abstract: A charged particle beam column includes a charged particle beam source to generate a charged particle beam; an objective lens to focus the charged particle beam in an object plane; a first condenser lens disposed in a beam path of the charged particle beam between the charged particle beam source and the objective lens; a deflector disposed in the beam path between the first condenser lens and the objective lens and configured to change an angle of incidence of the charged particle beam in an object plane; and an aberration corrector disposed in the beam path between the deflector and the objective lens and configured to compensate aberrations introduced by the objective lens. The aberration corrector is also configured to not compensate aberrations introduced by the first condenser lens.
    Type: Grant
    Filed: June 26, 2009
    Date of Patent: March 6, 2012
    Assignee: Carl Zeiss NTS GmbH
    Inventor: Dirk Preikszas
  • Publication number: 20120025095
    Abstract: A charged particle beam system includes a charged particle beam source to generate a charged particle beam; an objective lens to focus the charged particle beam in an object plane; a first condenser lens disposed in a beam path of the charged particle beam between the charged particle beam source and the objective lens; a deflector disposed in the beam path between the first condenser lens and the objective lens and configured to change an angle of incidence of the charged particle beam in an object plane; and an aberration corrector disposed in the beam path between the deflector and the objective lens and configured to compensate aberrations introduced by the objective lens. The aberration corrector is also configured to not compensate aberrations introduced by the first condenser lens.
    Type: Application
    Filed: September 28, 2011
    Publication date: February 2, 2012
    Applicant: Carl Zeiss NTS GmbH
    Inventor: Dirk Preikszas
  • Patent number: 8063364
    Abstract: A particle optical apparatus has a particle source for generating at least one beam of charged particles, and a magnet arrangement having two pole plates, which are arranged spaced apart from one another, such that the at least one beam of charged particles in operation passes through the pole plates, wherein trenches are provided in the pole plates, in which trenches coil wires are arranged. The trenches, when viewed in a cross section transverse to an extension direction of the trenches, have a smaller width in a region of a surface of the pole plates, than in a region arranged at a distance from the surface.
    Type: Grant
    Filed: December 22, 2009
    Date of Patent: November 22, 2011
    Assignee: Carl Zeiss NTS GmbH
    Inventors: Dirk Preikszas, Michael Steigerwald, Daniel Tobias, Andreas Eisele, Momme Mommsen, Dietmar Doenitz, Christian Hendrich
  • Publication number: 20110220788
    Abstract: An apparatus for focusing and for storage of ions and an apparatus for separation of a first pressure area from a second pressure area are disclosed, in particular for an analysis apparatus for ions. A particle beam device may have at least one of the abovementioned apparatuses. A container for holding ions and at least one multipole unit are provided. The multipole unit has a through-opening with a longitudinal axis as well as a multiplicity of electrodes. A first set of the electrodes is at a first radial distance from the longitudinal axis. A second set of the electrodes is in each case at a second radial distance from the longitudinal axis. The first radial distance is less than the second radial distance. Alternatively or additionally, the apparatus may have an elongated opening with a radial extent. The opening has a longitudinal extent which is greater than the radial extent.
    Type: Application
    Filed: January 27, 2011
    Publication date: September 15, 2011
    Inventors: Alexander Laue, Albrecht Glasmachers, Christian Hendrich, Dirk Preikszas, Michel Aliman, Hubert Mantz, Ulrike Zeile, Holger Dömer
  • Publication number: 20110215242
    Abstract: A particle beam device and a method for operation of a particle beam device are disclosed. The particle beam device has a sample chamber, a sample arranged in the sample chamber, a first particle beam column, a second particle beam column and at least one detector arranged in a first cavity in a first hollow body. The first cavity has a first inlet opening. The first particle beam column and the second particle beam column are arranged on one plane, while the detector is not arranged on that plane. At least one control electrode is arranged on the first particle beam column. The second particle beam column has a terminating electrode. A first hollow body voltage, a control electrode voltage and/or a terminating electrode voltage are/is chosen such that first interaction particles and/or second interaction particles enter the first cavity in the first hollow body through the first inlet opening.
    Type: Application
    Filed: January 27, 2011
    Publication date: September 8, 2011
    Inventor: Dirk Preikszas
  • Publication number: 20110108736
    Abstract: An SACP method includes directing a beam of charged particles onto an object surface of an object using a particle optical system, and detecting intensities of particles emanating from the object. The method further includes: (a1) adjusting an excitation of the second beam deflector for adjusting an impingement location of the beam on the object surface; (a2) adjusting an excitation of the first beam deflector for adjusting an angle of incidence of the beam on the object surface without changing the impingement location and detecting the intensity; and (a3) repeating the adjusting of the excitation of the first beam deflector for adjusting the angle of incidence without changing the impingement location such that a corresponding intensity is detected for each of at least 100 different angles of incidence at the same impingement location.
    Type: Application
    Filed: November 9, 2010
    Publication date: May 12, 2011
    Applicant: CARL ZEISS NTS GMBH
    Inventor: Dirk Preikszas
  • Patent number: 7910887
    Abstract: An electron-beam device having a beam generator for generating an electron beam, an objective lens for focusing the electron beam on an object, and at least one detector for detecting electrons scattered on the object or emitted by the object. Furthermore, a detector system for detecting electrons is described. With an electron-beam device having a detector system according to the present invention, it is possible to make a selection in a simple manner, in particular according to backscattered and secondary electrons. At the same time, as many electrons as possible may be detected using the detector system. For this purpose, the electron-beam device exhibits at least one adjustable diaphragm which is allocated to the detector. The detector system exhibits a detector on which a reflector for reflecting electrons onto the detector is accommodated.
    Type: Grant
    Filed: February 27, 2009
    Date of Patent: March 22, 2011
    Assignee: Carl Zeiss NTS GmbH
    Inventors: Michael D. G. Steigerwald, Dirk Preikszas, Volker Drexel
  • Publication number: 20110049361
    Abstract: A particle beam apparatus includes a first aperture unit having an adjustable aperture opening. The particle beam apparatus may include a first condenser lens having a first pole shoe and a second pole shoe. Both the first pole shoe and the second pole shoe may be adjustable relative to a second aperture unit independently of each other. The second aperture unit may be designed as a pressure stage aperture separating a first area having a vacuum at a first pressure, and a second area having a vacuum at a second pressure. Additionally, a method for adjusting a beam current in a particle beam apparatus is provided.
    Type: Application
    Filed: July 22, 2010
    Publication date: March 3, 2011
    Inventors: Dirk Preikszas, Michael Albiez
  • Publication number: 20100327179
    Abstract: A charged particle beam column includes a charged particle beam source to generate a charged particle beam; an objective lens to focus the charged particle beam in an object plane; a first condenser lens disposed in a beam path of the charged particle beam between the charged particle beam source and the objective lens; a deflector disposed in the beam path between the first condenser lens and the objective lens and configured to change an angle of incidence of the charged particle beam in an object plane; and an aberration corrector disposed in the beam path between the deflector and the objective lens and configured to compensate aberrations introduced by the objective lens. The aberration corrector is also configured to not compensate aberrations introduced by the first condenser lens.
    Type: Application
    Filed: June 26, 2009
    Publication date: December 30, 2010
    Applicant: CARL ZEISS NTS GMBH
    Inventor: Dirk Preikszas
  • Publication number: 20100294930
    Abstract: Methods are disclosed that include exposing, in direct succession, portions of a surface of a sample to a charged particle beam, the portions of the surface of the sample forming a row in a first direction, the charged particle beam having an average spot size fat the surface of the sample, each portion being spaced from its neighboring portions by a distance of at least din the first direction, and a ratio d/f being 2 or more.
    Type: Application
    Filed: December 12, 2008
    Publication date: November 25, 2010
    Applicant: CARL ZEISS NTS GMBH
    Inventors: Dirk Preikszas, Michael Steigerwald, Joerg Ackermann
  • Publication number: 20100258738
    Abstract: A device for deflecting a particle beam out of a beam axis, or for guiding a particle beam into the beam axis, has a simple design, requires little space, and additionally ensures that no area of an object that is not to be struck is struck by a particle beam. The device may include components in the following sequence along the beam axis: first deflection element, a magnetic apparatus for providing a magnetic field axially to the beam axis, and a second deflection element. A particle beam apparatus may have a device of this type.
    Type: Application
    Filed: September 26, 2008
    Publication date: October 14, 2010
    Inventor: Dirk Preikszas
  • Publication number: 20100155597
    Abstract: A particle optical apparatus has a particle source for generating at least one beam of charged particles, and a magnet arrangement having two pole plates, which are arranged spaced apart from one another, such that the at least one beam of charged particles in operation passes through the pole plates, wherein trenches are provided in the pole plates, in which trenches coil wires are arranged. The trenches, when viewed in a cross section transverse to an extension direction of the trenches, have a smaller width in a region of a surface of the pole plates, than in a region arranged at a distance from the surface.
    Type: Application
    Filed: December 22, 2009
    Publication date: June 24, 2010
    Applicant: CARL ZEISS NTS GMBH
    Inventors: Dirk PREIKSZAS, Michael STEIGERWALD, Daniel TOBIAS, Andreas EISELE, Momme MOMMSEN, Dietmar DOENITZ, Christian HENDRICH
  • Publication number: 20100044566
    Abstract: A positioning device and a particle beam apparatus including a positioning device ensure reliable positioning of a holder for holding an object at any working distance. The positioning device includes a positionable holder for holding the object. A light source generates a light beam which is guided in the direction of the positionable holder. A detector detects the light beam. An injection area injects particles of a particle beam such that they are guided in the direction of the positionable holder. The light beam passes the injection area. The injection area has an output side for the light beam and the particle beam, which is directed toward the holder. The detector includes a detector element situated in an area between the output side and the holder. The light source includes a light source element situated in an area which extends away from the holder, starting from the output side.
    Type: Application
    Filed: May 14, 2009
    Publication date: February 25, 2010
    Inventors: Dietmar DONITZ, Dirk PREIKSZAS, Michael STEIGERWALD
  • Publication number: 20090309025
    Abstract: A particle optical arrangement providing an electron microscopy system 3 and an ion beam processing system 7 comprises an objective lens 43 of the electron microscopy system having an annular electrode 59 being a component of the electron microscopy system arranged closest to a position 11 of an object to be examined. Between the annular electrode and a principal axis 9 of the ion beam processing system 7 a shielding electrode 81 is arranged.
    Type: Application
    Filed: November 23, 2007
    Publication date: December 17, 2009
    Inventor: Dirk Preikszas
  • Publication number: 20090309024
    Abstract: An electron-beam device having a beam generator for generating an electron beam, an objective lens for focusing the electron beam on an object, and at least one detector for detecting electrons scattered on the object or emitted by the object. Furthermore, a detector system for detecting electrons is described. With an electron-beam device having a detector system according to the present invention, it is possible to make a selection in a simple manner, in particular according to backscattered and secondary electrons. At the same time, as many electrons as possible may be detected using the detector system. For this purpose, the electron-beam device exhibits at least one adjustable diaphragm which is allocated to the detector. The detector system exhibits a detector on which a reflector for reflecting electrons onto the detector is accommodated.
    Type: Application
    Filed: February 27, 2009
    Publication date: December 17, 2009
    Inventors: MICHAEL D.G. STEIGERWALD, DIRK PREIKSZAS, VOLKER DREXEL
  • Patent number: 7523009
    Abstract: An instrument, in particular an electron microscope, has at least one user controllable operating parameter and at least one further operating parameter having a required value at least partially dependent on that of the user controllable parameter. A number of possible values of the further operating parameter are stored in a memory and each stored value corresponds to a respective possible value of the user controllable parameter. Selecting one of said stored possible values causes the instrument to be controlled accordingly. There is also provided a tuner for enabling the user to alter the selected value and updating apparatus for updating the memory accordingly, so that the adjusted value of the further operating parameter is subsequently selected from the memory if the same value of the user controllable parameter is then chosen again.
    Type: Grant
    Filed: August 12, 2003
    Date of Patent: April 21, 2009
    Assignee: Carl Zeiss NTS GmbH
    Inventors: Dirk Preikszas, David Ralph Hubbard
  • Patent number: 7507962
    Abstract: An electron-beam device having a beam generator for generating an electron beam, an objective lens for focusing the electron beam on an object, and at least one detector for detecting electrons scattered on the object or emitted by the object. Furthermore, a detector system for detecting electrons is described. With an electron-beam device having a detector system according to the present invention, it is possible to make a selection in a simple manner, in particular according to backscattered and secondary electrons. At the same time, as many electrons as possible may be detected using the detector system. For this purpose, the electron-beam device exhibits at least one adjustable diaphragm which is allocated to the detector. The detector system exhibits a detector on which a reflector for reflecting electrons onto the detector is accommodated.
    Type: Grant
    Filed: November 8, 2006
    Date of Patent: March 24, 2009
    Assignee: Carl Zeiss NTS GmbH
    Inventors: Michael D. G. Steigerwald, Dirk Preikszas, Volker Drexel
  • Patent number: 7425701
    Abstract: An electron-beam device having a beam generator for generating an electron beam, an objective lens for focusing the electron beam on an object, and at least one detector for detecting electrons scattered on the object or emitted by the object. Furthermore, a detector system for detecting electrons is described. With an electron-beam device having a detector system according to the present invention, it is possible to make a selection in a simple manner, in particular according to backscattered and secondary electrons. At the same time, as many electrons as possible may be detected using the detector system. For this purpose, the electron-beam device exhibits at least one adjustable diaphragm which is allocated to the detector. The detector system exhibits a detector on which a reflector for reflecting electrons onto the detector is accommodated.
    Type: Grant
    Filed: January 13, 2004
    Date of Patent: September 16, 2008
    Assignee: Carl Zeiss NTS GmbH
    Inventors: Michael D. G. Steigerwald, Dirk Preikszas, Volker Drexel