Patents by Inventor Robert M. Hornung

Robert M. Hornung 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).

  • Patent number: 4277701
    Abstract: Integrated Injection Logic (I.sup.2 L) Structures are disclosed. The disclosure includes integrated injection logic cell structures of the type including an injector and a plurality of adjacent NPN transistors spaced from said injector, characterized in that at least two PNP transistors have different factors L.sub.B /W.sub.B, where L.sub.B is the base dimension of the NPN transistor opposite the injector, and W.sub.B is the base width of the PNP transistor of the injector.
    Type: Grant
    Filed: July 13, 1978
    Date of Patent: July 7, 1981
    Assignee: International Business Machines Corporation
    Inventors: Robert M. Hornung, Gerard M. Lebesnerais
  • Patent number: 4164668
    Abstract: A method and structure for correcting the voltage coefficient of resistance (VCR) of a resistor in a semiconductor body is described. The resistor may be diffused or ion implanted of one conductivity and formed in an isolated layer of the opposite type of conductivity. The layer is typically an epitaxial layer. A potential V.sub.1 is applied to one end of the resistor and a potential V.sub.2 being applied to the opposite end. The method provides means for controlling variations of the potential difference between the resistive region and the epitaxial layer, either to minimize them or to cause the distortions generated by such variations to be compensated for by equal distortions of opposite directions, such that the overall distortion will be equal to zero. There is provided means to cause the potential of the epitaxial layer to reach a suitable value, preferably a value that varies in the same manner as the average value of the resistor whose VCR is to be corrected.
    Type: Grant
    Filed: May 12, 1977
    Date of Patent: August 14, 1979
    Assignee: International Business Machines Corporation
    Inventors: Francois X. Delaporte, Robert M. Hornung, Anne-Marie Lamouroux, Gerard M. Lebesnerais, Jean-Paul J. Nuez