Patents by Inventor Henry Bernhardt

Henry Bernhardt 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: 7880212
    Abstract: A dielectric interlayer, especially for a storage capacitor, is formed from a layer sequence subjected to a temperature process, wherein the layer sequence has at least a first metal oxide layer and a second metal oxide layer formed by completely oxidizing a metal nitride layer to higher valency.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: February 1, 2011
    Assignee: Qimonda AG
    Inventors: Bernd Hintze, Henry Bernhardt, Frank Bernhardt
  • Patent number: 7547646
    Abstract: A stress relief layer between a single-crystal semiconductor substrate and a deposited silicon nitride layer or pad nitride is formed from thermally produced silicon nitride. The stress relief layer made from thermally produced silicon nitride replaces a silicon dioxide layer or pad oxide which is customary at this location for example in connection with mask layers. After patterning of a mask, which includes a protective layer portion formed from deposited silicon nitride, the material which is provided according to the invention for the stress relief layer reduces the restrictions imposed for subsequent process steps, such as for example wet-etching steps, acting both on the semiconductor substrate or structures in the semiconductor substrate and also on the stress relief layer.
    Type: Grant
    Filed: October 28, 2004
    Date of Patent: June 16, 2009
    Assignee: Infineon Technologies AG
    Inventors: Henry Bernhardt, Michael Stadtmüller, Olaf Storbeck, Stefan Kainz
  • Publication number: 20080316675
    Abstract: A dielectric interlayer, especially for a storage capacitor, is formed from a layer sequence subjected to a temperature process, wherein the layer sequence has at least a first metal oxide layer and a second metal oxide layer formed by completely oxidizing a metal nitride layer to higher valency.
    Type: Application
    Filed: August 25, 2008
    Publication date: December 25, 2008
    Inventors: Bernd Hintze, Henry Bernhardt, Frank Bernhardt
  • Publication number: 20080280446
    Abstract: A microscopic hole is produced in a dielectric layer having a dielectric first material, a first surface and a second surface. In one embodiment, the tapered through-hole is etched from the second surface of the layer to the first surface of the layer. The tapered hole provides a first cross section near the first surface of the dielectric layer and a second cross section near the second surface of dielectric layer. A cladding is deposited at the inner surface of the through-hole. The cladding includes a second material and provides a thickness decreasing from the second surface to the first surface.
    Type: Application
    Filed: May 8, 2007
    Publication date: November 13, 2008
    Applicant: QIMONDA AG
    Inventors: Steffen Mueller, Odo Wunnicke, Henry Bernhardt
  • Patent number: 7416952
    Abstract: A dielectric interlayer, especially for a storage capacitor, is formed from a layer sequence subjected to a temperature process, wherein the layer sequence has at least a first metal oxide layer and a second metal oxide layer formed by completely oxidizing a metal nitride layer to higher valency.
    Type: Grant
    Filed: May 23, 2006
    Date of Patent: August 26, 2008
    Assignee: Infineon Technologies AG
    Inventors: Bernd Hintze, Henry Bernhardt, Frank Bernhardt
  • Publication number: 20080009139
    Abstract: A structure in a substrate for the manufacturing of a semiconductor device, wherein a first material and at least one second material are to be etched by at least one etching medium, wherein the at least one second material has a higher etch rate for the at least one etching medium relative to the first material. The at least one second material occupies a space which is at least at one side adjacent to the first material so that an additional etching access to the first material is prepared when at least one etching medium etches the first and the second material.
    Type: Application
    Filed: July 5, 2006
    Publication date: January 10, 2008
    Inventors: Thomas Hecht, Kristin Schupke, Kevin Bauer, Steffen Mueller, Henry Bernhardt
  • Publication number: 20070272965
    Abstract: A dielectric interlayer, especially for a storage capacitor, is formed from a layer sequence subjected to a temperature process, wherein the layer sequence has at least a first metal oxide layer and a second metal oxide layer formed by completely oxidizing a metal nitride layer to higher valency.
    Type: Application
    Filed: May 23, 2006
    Publication date: November 29, 2007
    Applicant: Infineon Technologies AG
    Inventors: Bernd Hintze, Henry Bernhardt, Frank Bernhardt
  • Patent number: 7297983
    Abstract: Integrated circuit device comprising a conductive layer and a poly-crystalline silicon layer, wherein the integrated circuit device further comprises an intermediate counter-stress layer. This intermediate counter-stress layer is arranged between the poly-crystalline silicon layer and the conductive layer, and enables stress-reduced crystallization of the poly-crystalline silicon layer. Further, the intermediate counter-stress layer is amorphous at and below a poly-silicon crystallization temperature.
    Type: Grant
    Filed: December 29, 2005
    Date of Patent: November 20, 2007
    Assignee: Infineon Technologies AG
    Inventors: Thomas Hecht, Henry Bernhardt, Christian Kapteyn
  • Publication number: 20070210367
    Abstract: A storage capacitor includes a first electrode layer, second electrode layer and a dielectric interlayer arranged between the first electrode layer and the second electrode layer. The dielectric interlayer contains a high-k dielectric and at least one silicon-containing component.
    Type: Application
    Filed: November 30, 2006
    Publication date: September 13, 2007
    Applicant: QIMONDA AG
    Inventors: Henry Bernhardt, Thomas Hecht, Michael Stadtmueller, Christian Kapteyn, Uwe Schroder, Yeong-Kwan Kim, Andreas Spitzer
  • Publication number: 20070155139
    Abstract: Integrated circuit device comprising a conductive layer and a poly-crystalline silicon layer, wherein the integrated circuit device further comprises an intermediate counter-stress layer. This intermediate counter-stress layer is arranged between the poly-crystalline silicon layer and the conductive layer, and enables stress-reduced crystallization of the poly-crystalline silicon layer. Further, the intermediate counter-stress layer is amorphous at and below a poly-silicon crystallization temperature.
    Type: Application
    Filed: December 29, 2005
    Publication date: July 5, 2007
    Applicant: INFINEON TECHNOLOGIES AG
    Inventors: Thomas Hecht, Henry Bernhardt, Christian Kapteyn
  • Patent number: 7081279
    Abstract: Liquid crystalline compounds having a large negative ?? low viscosity, a large K33/K11 value, a small ??/?? and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid crystal display devices containing such a liquid crystal compositions are disclosed.
    Type: Grant
    Filed: August 29, 2003
    Date of Patent: July 25, 2006
    Assignee: Chisso Corporation
    Inventors: Takashi Kato, Tomoyuki Kondo, Henry Bernhardt, Shuichi Matsui, Hiroyuki Takeuchi, Yasuhiro Kubo, Fusayuki Takeshita, Etsuo Nakagawa
  • Publication number: 20050276922
    Abstract: Atomic layer deposition of very thin dielectric metal oxide layers in manufacturing of semiconductor devices by ozone oxidation of precursor monolayers leads to unacceptable impurity content and leakage current of the layers. It is proposed to perform precursor oxidation by means of radicals generated by oxidizing and reductive gases, which are simultaneously fed into the reaction vessel. This way very low impurity content and leakage current is achieved even in very thin (several nm) layers.
    Type: Application
    Filed: June 10, 2004
    Publication date: December 15, 2005
    Inventors: Henry Bernhardt, Volker Hemel
  • Publication number: 20050118777
    Abstract: A stress relief layer between a single-crystal semiconductor substrate and a deposited silicon nitride layer or pad nitride is formed from thermally produced silicon nitride. The stress relief layer made from thermally produced silicon nitride replaces a silicon dioxide layer or pad oxide which is customary at this location for example in connection with mask layers. After patterning of a mask, which includes a protective layer portion formed from deposited silicon nitride, the material which is provided according to the invention for the stress relief layer reduces the restrictions imposed for subsequent process steps, such as for example wet-etching steps, acting both on the semiconductor substrate or structures in the semiconductor substrate and also on the stress relief layer.
    Type: Application
    Filed: October 28, 2004
    Publication date: June 2, 2005
    Inventors: Henry Bernhardt, Michael Stadtmuller, Olaf Storbeck, Stefan Kainz
  • Publication number: 20050118336
    Abstract: A process is described for depositing silicon nitride, in which the temperature in a furnace is set to from 600° C. to 645° C. The silicon nitride formed in this way is permeable to small molecules, such as in particular hydrogen molecules, yet nevertheless retains its etching selectivity with respect to silicon dioxide.
    Type: Application
    Filed: August 27, 2002
    Publication date: June 2, 2005
    Inventors: Henry Bernhardt, Michael Stadtmueller, Dietmar Ottenwaelder, Anja Morgenschweis
  • Patent number: 6802712
    Abstract: A heating system, a method for heating a deposition reactor or an oxidation reactor, and a reactor utilizing the heating system are particularly suited for low-pressure chemical vapor deposition or oxidation. A heating system is particularly useful for heating a reactor in which a plurality of wafers is held perpendicularly to the reactant gas flowing direction that is parallel to the longitudinal axis of the reactor, to enable a deposition or oxidation reaction. The heating system is adapted to change the reactor temperature during the process. In addition, a method heats a reactor to enable a reaction. Preferably, each of a plurality of reactor zones, into which the reactor is divided in a direction parallel to the reactant gas flowing direction, is heated at a different temperature profile indicating the temperature of this specific zone versus time. Thereby, the in-plane uniformity of deposited or oxidized layers can be largely improved.
    Type: Grant
    Filed: October 14, 2003
    Date of Patent: October 12, 2004
    Assignees: Infineon Technologies SC300 GmbH & Co. KG, Aviza Technology, Inc.
    Inventors: Henry Bernhardt, Thomas Seidemann, Michael Stadtmueller
  • Publication number: 20040157183
    Abstract: A heating system, a method for heating a deposition reactor or an oxidation reactor, and a reactor utilizing the heating system are particularly suited for low-pressure chemical vapor deposition or oxidation. A heating system is particularly useful for heating a reactor in which a plurality of wafers is held perpendicularly to the reactant gas flowing direction that is parallel to the longitudinal axis of the reactor, to enable a deposition or oxidation reaction. The heating system is adapted to change the reactor temperature during the process. In addition, a method heats a reactor to enable a reaction. Preferably, each of a plurality of reactor zones, into which the reactor is divided in a direction parallel to the reactant gas flowing direction, is heated at a different temperature profile indicating the temperature of this specific zone versus time. Thereby, the in-plane uniformity of deposited or oxidized layers can be largely improved.
    Type: Application
    Filed: October 14, 2003
    Publication date: August 12, 2004
    Inventors: Henry Bernhardt, Thomas Seidemann, Michael Stadtmueller
  • Publication number: 20040065866
    Abstract: There are provided a liquid crystalline compound having a large negative &Dgr;&egr;, low viscosity, a large K33/K11 value, a small &Dgr;&egr;/&egr;L and mutually excellent solubility even at extremely low temperature; a liquid crystal composition prepared from a liquid crystalline compound; and a liquid crystal display device fabricated from such a liquid crystal composition.
    Type: Application
    Filed: August 29, 2003
    Publication date: April 8, 2004
    Applicant: CHISSO CORPORATION
    Inventors: Takashi Kato, Tomoyuki Kondo, Henry Bernhardt, Shuichi Matsui, Hiroyuki Takeuchi, Yasuhiro Kubo, Fusayuki Takeshita, Etsuo Nakagawa
  • Patent number: 6692657
    Abstract: Liquid crystalline compounds having a large negative &Dgr;∈ low viscosity, a large K33/K11 value, a small &Dgr;∈/&Dgr;⊥ and mutually excellent solubility even at low temperature, compositions containing at least one of the compounds and liquid crystal display devices containing such a liquid crystal compositions are disclosed.
    Type: Grant
    Filed: June 2, 1999
    Date of Patent: February 17, 2004
    Assignee: Chisso Corporation
    Inventors: Takashi Kato, Tomoyuki Kondo, Henry Bernhardt, Shuichi Matsui, Hiroyuki Takeuchi, Yasuhiro Kubo, Fusayuki Takeshita, Etsuo Nakagawa