Patents by Inventor Helmut Eger

Helmut Eger 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).

  • Method of making schottky contacts on semiconductor surfaces
    Patent number: 4859616
    Abstract: In a Schottky contact on a semiconductor surface (3) comprising in the semiconductor edge region of the Schottky contact a doped guard ring (7) applied as self-aligning, and in which portions of the semiconductor edge region are shielded by at least one layer including a method for the production of such a Schottky contact, an improvement of the electrical properties of the Schottky contact and an improvement of the yield in the production of the Schottky contact is achieved by using the principles of the invention. Furthermore, high-temperature treatment of the Schottky contact is also made possible. At least one layer, shielding portions of the semiconductor edge region, is applied as a self-aligning protective layer (5; 21, 22; 32; 33, 34) for the guard ring (7).
    Type: Grant
    Filed: March 3, 1988
    Date of Patent: August 22, 1989
    Assignee: Siemens Aktiengesellschaft
    Inventors: Reinhard Losehand, Helmut Eger