Patents by Inventor Jiri Dlouhy

Jiri Dlouhy 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).

  • Semiconductor components
    Patent number: 5053854
    Abstract: A semiconductor component including a semiconductor substrate having a main electrode and a control electrode. The main electrode includes a groove in which is inserted a U-shaped insulation body. The control electrode is disposed in the groove and is insulated from the main electrode by the insulation body. A spring is provided in the groove between the control electrode and the insulation body and presses the control electrode against the semiconductor substrate. In this way, the control electrode is displaceable with respect to the insulation body in a direction perpendicular to the main surface of the semiconductor substrate.
    Type: Grant
    Filed: March 7, 1988
    Date of Patent: October 1, 1991
    Assignee: BBC Brown Boveri AG
    Inventors: Peter Almenrader, Jiri Dlouhy, Jurg Fingerle, Otto Kuhn
  • Housing for a gate turn-off power thyristor (GTO)
    Patent number: 4953004
    Abstract: In a metal-ceramic housing for a high-power GTO, a space-saving auxiliary cathode connection (5a) capable of carrying current is achieved in that it is constructed by embedding in the insulating ring (4) of the housing and is connected directly to the cathode contact plate (9) via its own connecting elements (11, 13, 15).
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: August 28, 1990
    Assignee: BBC Brown Boveri AG
    Inventors: Peter Almenrader, Jiri Dlouhy
  • Method of producing a beveled peripheral profile on a semiconductor disc
    Patent number: 4793102
    Abstract: In a method of producing a beveled peripheral profile on a semiconductor disk (1), the peripheral profile is ground by an obliquely-arranged grinding disk (7). The centering of the semiconductor disk (1) in the clamping device, consisting of clamping heads (3, 6), preferably occurs via a bonded-on molybdenum disk (2), which runs on a guide disk (9). The employment of a diamond grinding disk with suitable grains and binder is particularly appropriate.
    Type: Grant
    Filed: October 5, 1987
    Date of Patent: December 27, 1988
    Assignee: BBC Brown Boveri AG
    Inventor: Jiri Dlouhy
  • Method of making an encircling groove on the edge of a semiconductor slice of a power semiconductor component
    Patent number: 4793101
    Abstract: In a method of making an encircling groove (8) on the edge of a semiconductor slice (5) of a power semiconductor component, first of all the edge is surface-ground and then the groove (8) is ground in one operation by means of a form-grinding wheel (3) correspondingly contoured on the edge. An especially high output is achieved with diamond grinding wheels of appropriate grain size and suitable bond.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: December 27, 1988
    Assignee: BBC Brown Boveri AG
    Inventors: Jiri Dlouhy, Otto Kuhn, Andreas Ruegg
  • Electrochromic display device with a contrast-enhancing adjuvant and method of producing the same
    Patent number: 4067644
    Abstract: An improved electrochromic display device and a method of manufacturing it are disclosed. The improved device includes at least one layer of light absorbing and/or light reflecting fabric as a contrast enhancing adjuvant in the electrolyte of the device. According to the method of the invention a transparent support, at least one layer of fabric and a counter-electrode are assembled in laminated form and sealed together by an adhesive applied at the edges of the assembled structure.
    Type: Grant
    Filed: April 2, 1976
    Date of Patent: January 10, 1978
    Assignee: BBC Brown Boveri & Company Limited
    Inventors: Jiri Dlouhy, Hans-Rudolf Zeller