Patents by Inventor Christoph Hohle

Christoph Hohle 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: 11079411
    Abstract: An electromechanical component and an electromechanical component arrangement for proving the existence of a potential difference which consists of a first electrode, a second electrode and a proving structure. The proving structure is configured to be deflected in the event of there being a potential difference. In addition, an electromechanical component is configured to generate a useful effect. A method implements operation of an electromechanical component for proving the existence of a potential difference, other methods implement operation for performing a functional test on the electromechanical component.
    Type: Grant
    Filed: October 12, 2018
    Date of Patent: August 3, 2021
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Linus Elsäber, Matthias Schulze, Martin Friedrichs, Christoph Hohle, Detlef Kunze
  • Publication number: 20190086446
    Abstract: An electromechanical component and an electromechanical component arrangement for proving the existence of a potential difference which consists of a first electrode, a second electrode and a proving structure. The proving structure is configured to be deflected in the event of there being a potential difference. In addition, an electromechanical component is configured to generate a useful effect. A method implements operation of an electromechanical component for proving the existence of a potential difference, other methods implement operation for performing a functional test on the electromechanical component.
    Type: Application
    Filed: October 12, 2018
    Publication date: March 21, 2019
    Inventors: Linus ELSÄßER, MATTHIAS SCHULZE, Martin FRIEDRICHS, Christoph HOHLE, DETLEF KUNZE
  • Patent number: 8227177
    Abstract: The invention relates to a method with contrast reversal which, inter alia, opens up new areas of application for resists.
    Type: Grant
    Filed: May 10, 2007
    Date of Patent: July 24, 2012
    Assignee: Infineon Technologies AG
    Inventors: Kang-Hoon Choi, Klaus Elian, Christoph Hohle, Johannes Kretz, Frank Thrum
  • Publication number: 20090097004
    Abstract: A lithography apparatus includes a first optical system configured to irradiate a mask with a non-telecentric illumination and a second optical system configured to guide radiation reflected off or transmitted through the mask to a substrate. The mask includes an absorber structure arranged over a non-absorbing surface, wherein the absorber structure includes sidewalls extending in a first direction intersecting a main plane of incidence of the non-telecentric illumination. The sidewall angle of the sidewalls may be at most equal to 90° minus the angle of incidence of the non-telecentric illumination and at least equal to 90° minus the sum of the angle of incidence and a half acceptance angle of the second optical system.
    Type: Application
    Filed: October 16, 2007
    Publication date: April 16, 2009
    Applicants: QIMONDA AG, INFINEON TECHNOLOGIES AG
    Inventors: Sven Trogisch, Christoph Hohle, Wolf-Dieter Domke, Gunther Ruhl
  • Patent number: 7405028
    Abstract: A bottom antireflective coating for photolithography at 157 nm or less, where the bottom antireflective coating includes a crosslinkable polymer which contains cinnamic acid derivatives.
    Type: Grant
    Filed: January 28, 2005
    Date of Patent: July 29, 2008
    Assignee: Infineon Technologies, AG
    Inventor: Christoph Hohle
  • Publication number: 20080003521
    Abstract: In a process for creating a pattern in a photoresist layer, a photoresist layer is provided on a substrate. At least selected areas of the photoresist layer are exposed to a radiation beam thereby inducing a change in the chemical composition of the photoresist material in the selectively exposed areas of the photoresist layer. The exposed areas of the photoresist layer are thermally treated using a heated fluid. The photoresist layer is then developed thereby creating the pattern.
    Type: Application
    Filed: June 29, 2006
    Publication date: January 3, 2008
    Inventors: Klaus Elian, Christoph Hohle
  • Publication number: 20070264595
    Abstract: The invention relates to a method with contrast reversal which, inter alia, opens up new areas of application for resists.
    Type: Application
    Filed: May 10, 2007
    Publication date: November 15, 2007
    Inventors: Kang-Hoon Choi, Klaus Elian, Christoph Hohle, Johannes Kretz, Frank Thrum
  • Patent number: 7169531
    Abstract: A photoresist that is suitable for use in 157 nm photolithography includes a polymer based on fluorinated norbornene derivatives.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: January 30, 2007
    Assignees: Infineon Technologies, AG, AZ Electronic Materials USA Corp.
    Inventors: Christoph Hohle, Ralph Dammel, Michael Francis Houlihan
  • Patent number: 7052820
    Abstract: A photoresist includes a polymer having a main chain composed of alternating silicon and oxygen atoms and a polymer chain segment which linked as a side chain to the main chain and whose chain is composed of carbon atoms. The chain composed of carbon atoms includes acid-labile groups, so that the photoresist according to the invention can be constructed as a chemically amplified photoresist.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: May 30, 2006
    Assignee: Infineon Technologies AG
    Inventors: Jörg Rottstegge, Eberhard Kühn, Waltraud Herbst, Christian Eschbaumer, Christoph Hohle, Michael Sebald
  • Publication number: 20060105274
    Abstract: A method for forming a lithography mask on a surface region of a wafer is presented. In one embodiment of the method according to the invention time periods from the end of an exposure operation until the beginning of a thermal aftertreatment for the sections of the semiconductor material region are to be identical or approximately identical.
    Type: Application
    Filed: October 27, 2005
    Publication date: May 18, 2006
    Inventors: Karl Kragler, Waltraud Herbst, Michael Sebald, Christoph Hohle
  • Patent number: 7045273
    Abstract: A process for the amplification of structured resists utilizes a reaction between a nucleophilic group and an isocyanate group or thiocyanate group to link an amplification agent to a polymer present in the photoresist. The isocyanate group or the thiocyanate group in addition to the nucleophilic group form a reaction pair. One of the partners is provided on the polymer and the other partner on the amplification agent. The amplification reaction takes place more rapidly than a linkage to carboxylic anhydride groups. Furthermore, the amplification reaction permits the use of polymers that have high transparency at short wavelengths of less than 200 nm, in particular 157 nm.
    Type: Grant
    Filed: October 31, 2002
    Date of Patent: May 16, 2006
    Assignee: Infineon Technologies AG
    Inventors: Jens Ferbitz, Werner Mormann, Jens Rottstegge, Christoph Hohle, Christian Eschbaumer, Michael Sebald
  • Patent number: 7041426
    Abstract: A photoresist includes a polymer which has acid-cleavable groups in its main chain. The polymer can thus be cleaved by acid into short cleavage products which can be removed from the substrate through the use of a developer. The polymer is completely or partially fluorinated, and consequently has an improved transparency to light of short wavelengths.
    Type: Grant
    Filed: July 19, 2002
    Date of Patent: May 9, 2006
    Assignee: Infineon Technologies AG
    Inventors: Christian Eschbaumer, Christoph Hohle, Michael Sebald, Jörg Rottstegge
  • Patent number: 7033740
    Abstract: The chemically amplified resist includes a film-forming polymer, a photoacid generator, and a solvent. The film-forming polymer contains acid-labile groups which are eliminated under the action of an acid and liberate a group which brings about an increase in the solubility of the polymer in aqueous alkaline developers. The film-forming polymer has polymer building blocks derived from monomers which are at least monofluorinated and contain an anchor group for the attachment of an amplifying agent. As a result of the fluorination of the polymer building blocks, the transparency of the resist at an exposing wavelength of 157 nm is substantially increased, so that resist structures of increased layer thickness can be represented.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: April 25, 2006
    Assignee: Infineon Technologies AG
    Inventors: Jörg Rottstegge, Christian Eschbaumer, Christoph Hohle, Waltraud Herbst
  • Patent number: 6974655
    Abstract: A chemically amplified photo-resist includes a polymer containing acid-labile radicals attached to a polar group and also contains anchor groups that allow attachment of a consolidating agent. The polymer includes first repeating units containing siloxane groups. The photoresist on the one hand exhibits an enhanced transparency for short-wavelength radiation and on the other hand permits chemical consolidation of the structured resist. A process for producing structured resists is a also described.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: December 13, 2005
    Assignee: Infineon Technologies AG
    Inventors: Jörg Rottstegge, Christoph Hohle, Christian Eschbaumer, Michael Sebald, Wolf-Dieter Domke
  • Publication number: 20050170279
    Abstract: A photoresist that is suitable for use in 157 nm photolithography includes a polymer based on fluorinated norbornene derivatives.
    Type: Application
    Filed: October 28, 2004
    Publication date: August 4, 2005
    Inventors: Christoph Hohle, Ralph Dammel, Michael Houlihan
  • Publication number: 20050170283
    Abstract: A bottom antireflective coating for photolithography at 157 nm or less, where the bottom antireflective coating includes a crosslinkable polymer which contains cinnamic acid derivatives.
    Type: Application
    Filed: January 28, 2005
    Publication date: August 4, 2005
    Inventor: Christoph Hohle
  • Patent number: 6893972
    Abstract: The novel process lends itself to the production of highly resolved resist structures. A resist structure having webs is produced from a photoresist on a substrate and then the sidewalls of the webs are selectively chemically amplified so that chemically amplified sidewall structures are obtained. After the removal of the chemically unamplified sections, the amplified sidewall structures are transferred to the substrate. The process permits a resolution of structures that are not producible using the currently customary exposure wavelengths.
    Type: Grant
    Filed: September 3, 2002
    Date of Patent: May 17, 2005
    Assignee: Infineon Technologies AG
    Inventors: Jörg Rottstegge, Eberhard Kühn, Waltraud Herbst, Christian Eschbaumer, Christoph Hohle, Gertrud Falk, Michael Sebald
  • Patent number: 6806027
    Abstract: Chemically amplified photoresists exhibit increased transparency at a wavelength of 157 nm. The chemically amplified photoresist includes a polymer containing first repeating units derived from a cinnamic acid or a cinnamic ester, which are at least monofluorinated or substituted by fluoroalkyl groups. Processes for structuring substituents using transparency enhancement of resist copolymers for 157 nm photolithography using fluorinated cinnamic acid derivatives are also included.
    Type: Grant
    Filed: July 30, 2002
    Date of Patent: October 19, 2004
    Assignee: Infineon Technologies AG
    Inventors: Christoph Hohle, Jörg Rottstegge, Christian Eschbaumer, Michael Sebald
  • Patent number: 6770423
    Abstract: The invention relates to a process for producing amplified negative resist structures in which, following exposure and contrasting of the resist in a developing step, the resist structure is simultaneously developed and silylated. This substantially simplifies the production of amplified resist structures.
    Type: Grant
    Filed: July 1, 2002
    Date of Patent: August 3, 2004
    Assignee: Infineon Technologies AG
    Inventors: Jörg Rottstegge, Eberhard Kühn, Waltraud Herbst, Christian Eschbaumer, Christoph Hohle, Gertrud Falk, Michael Sebald
  • Patent number: 6759184
    Abstract: A process for the post-exposure amplification of resist structures uses amplification of resist structures of fluorinated resist polymers by structural growth of the structures by targeted chemical bonding of fluorinated oligomers. In the first step, a fluorine-containing resist is applied to a substrate. After exposure and development of the resist, bonding of an amplification agent chemically amplifies the resist structures. A fluorine-containing amplification agent is preferably used to achieve an improved reaction between polymer and amplification agent due to the improved miscibility of the molecular chains.
    Type: Grant
    Filed: June 28, 2002
    Date of Patent: July 6, 2004
    Assignee: Infineon Technologies AG
    Inventors: Jörg Rottstegge, Christian Eschbaumer, Christoph Hohle, Waltraud Herbst, Michael Sebald