Patents by Inventor Ralf Henninger

Ralf Henninger 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: 20030222297
    Abstract: Transistor configurations have trench transistor cells disposed along trenches in a semiconductor substrate with two or more electrode structures disposed in the trenches, and also metallizations are disposed above a substrate surface of the semiconductor substrate. The trenches extend into an inactive edge region of the transistor configuration and an electrically conductive connection between the electrode structures and corresponding metallizations are provided in the edge region.
    Type: Application
    Filed: March 19, 2003
    Publication date: December 4, 2003
    Inventors: Joachim Krumrey, Franz Hirler, Ralf Henninger, Martin Plolz, Walter Rieger
  • Publication number: 20030209757
    Abstract: A semiconductor component has a cell array formed in a semiconductor body with a number of identical transistor cells and at least one edge cell formed at an edge of the cell array. Each of the transistor cells has a control electrode, which is formed in a trench, and the edge cell has a field plate, which is formed in a trench, with a distance between the trench of the edge cell and the trench of the immediately adjacent transistor cell being less than the distance between a trench of a transistor cell and the trench of an immediately adjacent transistor cell in the cell array.
    Type: Application
    Filed: March 28, 2003
    Publication date: November 13, 2003
    Inventors: Ralf Henninger, Franz Hirler, Joachim Krumrey, Markus Zundel, Walter Rieger, Martin Polzl
  • Publication number: 20030186507
    Abstract: A method for fabricating a field-effect-controllable semiconductor component includes providing a configuration having a semiconductor body with a front side, a rear side, a first terminal zone of a first conduction type, a channel zone of a second conduction type formed above the first terminal zone, and at least one control electrode adjacent the channel zone. The control electrode is insulated from the semiconductor body. A second terminal zone of the first conduction type is fabricated in the channel zone near the front side of the semiconductor body by: doping the channel zone near the front side with a first dopant concentration to fabricate a first zone of the first conduction type, and doping a section of the first zone with a second dopant concentration higher than the first dopant concentration to form a second zone of the first conduction type.
    Type: Application
    Filed: March 28, 2003
    Publication date: October 2, 2003
    Inventors: Ralf Henninger, Franz Hirler, Martin Polzl, Walter Rieger
  • Publication number: 20030178676
    Abstract: The switching behavior of a transistor configuration is improved by providing a shielding electrode in an edge region. The shielding electrode surrounds at least sections of an active cell array. The capacitance between an edge gate structure and a drain zone and hence the gate-drain capacitance CGD of the transistor configuration is reduced by the shielding electrode located in the edge region.
    Type: Application
    Filed: March 19, 2003
    Publication date: September 25, 2003
    Inventors: Ralf Henninger, Franz Hirler, Joachim Krumrey, Walter Rieger, Martin Poelzl
  • Publication number: 20020185680
    Abstract: A trench power semiconductor component is described which has an edge cell in which an edge trench is provided. The edge trench, at least on an outer side wall, has a thicker insulating layer than an insulating layer of trenches of the cell array. This simple configuration provides a high dielectric strength and is economical to produce.
    Type: Application
    Filed: June 10, 2002
    Publication date: December 12, 2002
    Inventors: Ralf Henninger, Franz Hirler, Manfred Kotek, Joost Larik, Markus Zundel