Patents by Inventor Ezatoll Ramezani

Ezatoll Ramezani 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 component with turn-off facility
    Patent number: 5132768
    Abstract: In a semiconductor component with turn-off facility of the GTO type with direct pressure contact, a balancing of the local pressure distribution in the region of the cathode fingers (7) which results in an improved alternating load resistance and also in an extension of the allowable pressure range is achieved by structural matching of the anode metallization (4) to the gate-cathode structure on the cathode side.
    Type: Grant
    Filed: December 20, 1990
    Date of Patent: July 21, 1992
    Assignee: Asea Brown Boveri Limited
    Inventors: Andre Jaecklin, Ezatoll Ramezani, Thomas Vlasak
  • Semiconductor component with turn-off facility
    Patent number: 5031016
    Abstract: In a semiconductor component with turn-off facility of the GTO type with direct pressure contact, a balancing of the local pressure distribution in the region of the cathode fingers (7) which results in an improved alternating load resistance and also in an extension of the allowable pressure range is achieved by structural matching of the anode metallization (4) to the gate-cathode structure on the cathode side.
    Type: Grant
    Filed: August 10, 1989
    Date of Patent: July 9, 1991
    Assignee: Asea Brown Boveri Limited
    Inventors: Andre Jaecklin, Ezatoll Ramezani, Thomas Vlasak