Patents by Inventor Andrea Franke

Andrea Franke 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).

  • Publication number: 20050186036
    Abstract: Cylindrical milling is used to produce ball raceways on an outer circumferential surface of a joint inner part for a constant-velocity rotary joint. To do this, a cylindrical milling tool with a large number of milling teeth based on the diameter of the tool is used in order to achieve a high advance rate.
    Type: Application
    Filed: November 14, 2002
    Publication date: August 25, 2005
    Inventors: Oliver Doerfel, Andreas Franke
  • Patent number: 6891229
    Abstract: A method of forming a semiconductor device so as to provide the device inverted isolation trenches with convex sidewalls. Initially, a plurality of composite isolation posts (50, 51) are formed on a substrate (40) through successive deposition, lithography, and etching steps. The posts comprise a bottom layer (501, 502) of silicon dioxide and an overlying etch-stop layer of silicon nitride (502, 512). An insulating material (60) is then deposited over the isolation posts and areas of the substrate. Isolation structures (70,71) are established by etching the insulating material to form convex sidewall spacers (701,702, 711, 712) at the vertical walls of the isolation posts. Active areas (80) between spacers are filled with semiconductor material. In an embodiment, a strained cap layer (101) may be imposed on the active areas. The strained cap layer has a lattice constant that is different from the lattice constant of the semiconductor material.
    Type: Grant
    Filed: April 30, 2003
    Date of Patent: May 10, 2005
    Assignee: Freescale Semiconductor, Inc.
    Inventors: Andrea Franke, Jonathan Cobb, John M. Grant, Al T. Koh, Yeong-Jyh T. Lii, Bich-Yen Nguyen, Anna M. Phillips
  • Publication number: 20040217437
    Abstract: A method of forming a semiconductor device so as to provide the device inverted isolation trenches with convex sidewalls. Initially, a plurality of composite isolation posts (50, 51) are formed on a substrate (40) through successive deposition, lithography, and etching steps. The posts comprise a bottom layer (501, 502) of silicon dioxide and an overlying etch-stop layer of silicon nitride (502, 512). An insulating material (60) is then deposited over the isolation posts and areas of the substrate. Isolation structures (70,71) are established by etching the insulating material to form convex sidewall spacers (701,702, 711, 712) at the vertical walls of the isolation posts. Active areas (80) between spacers are filled with semiconductor material. In an embodiment, a strained cap layer (101) may be imposed on the active areas. The strained cap layer has a lattice constant that is different from the lattice constant of the semiconductor material.
    Type: Application
    Filed: April 30, 2003
    Publication date: November 4, 2004
    Inventors: Andrea Franke, Jonathan Cobb, John M. Grant, Al T. Koh, Yeong-Jyh T. Lii, Bich-Yen Nguyen, Anna M. Phillips
  • Patent number: 6448622
    Abstract: This invention relates to micro-electromechanical systems using silicon-germanium films. Such a system includes one or more layers of Si1−xGex, deposited on a substrate, where 0<x≦1. One or more transistors can be formed on the substrate.
    Type: Grant
    Filed: July 17, 2000
    Date of Patent: September 10, 2002
    Assignee: The Regents of the University of California
    Inventors: Andrea Franke, Roger T. Howe, Tsu-Jae King
  • Patent number: 6210988
    Abstract: This invention relates to micro-electromechanical systems using silicon-germanium films.
    Type: Grant
    Filed: January 14, 2000
    Date of Patent: April 3, 2001
    Assignee: The Regents of the University of California
    Inventors: Roger T. Howe, Andrea Franke, Tsu-Jae King
  • Patent number: 5358410
    Abstract: According, two casing parts is disclosed for a spiral cable for connecting electrical line terminals between a stationary vehicle steering column and a rotatable steering wheel. One of the two casing parts has an annular space for the spiral cable which is open towards an axial face and the other casing part is in the form of a plate for covering the annular space. It is thus possible to arrange the two casing parts at an axial distance from one another and thus to prevent the two parts from rubbing against one another.
    Type: Grant
    Filed: October 13, 1993
    Date of Patent: October 25, 1994
    Assignee: Mercedes-Benz AG
    Inventors: Joachim Kieserling, Manfred Link, Andreas Franke
  • Patent number: 5014831
    Abstract: A device for locking an actuating lever of a shifting device of a gear-change mechanism of a motor vehicle, in a lever position associated with a particular shift state utilizes a swivellable locking element connected to a brake pedal via an adjusting linkage to be moved into a locking position by a restoring spring holding the brake pedal in the unactuated rest position. Depression of the brake pedal releases the actuating lever. The adjusting linkage contains a resiliently-acting intermediate member acting on the locking element control to position a counter-control cam into engagement with an actuator control cam to lock the actuator. When the actuating lever is actuated into a nonlockable lever position, the locking element is moved into a floating position against the spring force of the intermediate member, while the brake pedal remains essentially in a rest position by virtue of an enlargement of the effective length of the adjusting linkage.
    Type: Grant
    Filed: December 12, 1989
    Date of Patent: May 14, 1991
    Assignee: Daimler-Benz AG
    Inventors: Helmut Wawra, Wilhelm Albrecht, Bernd Wagner, Andreas Franke, Harald Gellner