Patents by Inventor Frank Pietzschmann

Frank Pietzschmann 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: 7785935
    Abstract: The present invention provides a manufacturing method for forming an integrated circuit device and to a corresponding integrated circuit device. The manufacturing method for forming an integrated circuit device comprises the steps of: forming a first level on a substrate; forming a second level above the first level; forming a cap layer on the second level which covers a first region of the level and leaves a second region uncovered; and simultaneously etching a first contact hole in the first region and a second contact hole in the second region such that the etching is selective to the cap layer in the second region and proceeds to a greater depth in the first region.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: August 31, 2010
    Assignee: Qimonda AG
    Inventors: Ole Bosholm, Marco Lepper, Goetz Springer, Detlef Weber, Grit Bonsdorf, Frank Pietzschmann
  • Publication number: 20090121314
    Abstract: The present invention provides a manufacturing method for forming an integrated circuit device and to a corresponding integrated circuit device. The manufacturing method for forming an integrated circuit device comprises the steps of: forming a first level on a substrate; forming a second level above the first level; forming a cap layer on the second level which covers a first region of the level and leaves a second region uncovered; and simultaneously etching a first contact hole in the first region and a second contact hole in the second region such that the etching is selective to the cap layer in the second region and proceeds to a greater depth in the first region.
    Type: Application
    Filed: November 13, 2007
    Publication date: May 14, 2009
    Inventors: Ole Bosholm, Marco Lepper, Goetz Springer, Detlef Weber, Grit Bonsdorf, Frank Pietzschmann
  • Publication number: 20090079450
    Abstract: A semiconductor test device. In one embodiment, the test device includes a drill bit. The test device is configured to rotate the drill bit, at least after contacting the semiconductor device, for penetrating into the semiconductor device.
    Type: Application
    Filed: March 28, 2008
    Publication date: March 26, 2009
    Applicant: QIMONDA AG
    Inventors: Udo Hartmann, Frank Pietzschmann
  • Patent number: 7212019
    Abstract: A probe needle for testing semiconductor chips includes one end that is fixed in a holding element and a free end that includes a contact tip. The probe needle is provided—at least on the surface of the contact tip—with a layer consisting of a chemically inert, electroconductive material which is hard in relation to the material of contact surfaces of the semiconductor chips. For example, the layer can be titanium nitride.
    Type: Grant
    Filed: April 15, 2004
    Date of Patent: May 1, 2007
    Assignee: Infineon Technologies AG
    Inventors: Manfred Schneegans, Frank Pietzschmann
  • Publication number: 20040239921
    Abstract: A probe needle for testing semiconductor chips includes one end that is fixed in a holding element and a free end that includes a contact tip. The probe needle is provided—at least on the surface of the contact tip—with a layer consisting of a chemically inert, electroconductive material which is hard in relation to the material of contact surfaces of the semiconductor chips. For example, the layer can be titanium nitride.
    Type: Application
    Filed: April 15, 2004
    Publication date: December 2, 2004
    Inventors: Manfred Schneegans, Frank Pietzschmann
  • Patent number: 6784678
    Abstract: A wafer test apparatus for bringing the contact areas of the integrated circuits to be tested into electrical connection with the test contacts as uniformly as possible and therefore with relatively low necessary contact pressures. The test apparatus has a chuck for holding a wafer having at least one integrated circuit with a group of contact areas which define a wafer surface profile. A test head is configured opposite the chuck and has a performance board, on which a probe card with contacts for making contact with the contact areas of the integrated circuit is configured. Areas of the contacts, of the probe card, which are intended to come into contact with the contact areas define a test surface profile. Actuators are configured on the probe card for aligning the test surface profile in parallel with the wafer surface profile and for changing the distance between the performance board and the contacts in a direction substantially orthogonal to the wafer surface profile.
    Type: Grant
    Filed: August 6, 2001
    Date of Patent: August 31, 2004
    Assignee: Infineon Technologies AG
    Inventor: Frank Pietzschmann
  • Publication number: 20020024354
    Abstract: A wafer test apparatus for bringing the contact areas of the integrated circuits to be tested into electrical connection with the test contacts as uniformly as possible and therefore with relatively low necessary contact pressures. The test apparatus has a chuck for holding a wafer having at least one integrated circuit with a group of contact areas which define a wafer surface profile. A test head is configured opposite the chuck and has a performance board, on which a probe card with contacts for making contact with the contact areas of the integrated circuit is configured. Areas of the contacts, of the probe card, which are intended to come into contact with the contact areas define a test surface profile. Actuators are configured on the probe card for aligning the test surface profile in parallel with the wafer surface profile and for changing the distance between the performance board and the contacts in a direction substantially orthogonal to the wafer surface profile.
    Type: Application
    Filed: August 6, 2001
    Publication date: February 28, 2002
    Inventor: Frank Pietzschmann