Patents by Inventor Patrick K. Gallagher

Patrick K. Gallagher 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: 4968644
    Abstract: A method for fabricating a device, e.g., a semiconductor device, is disclosed which includes the step of reacting at least two reactive entities to form a metal-containing material on a region or regions of a processed or unprocessed substrate. Inherent in the method is the recognition that one of the reactive entities will often react with substrate material to produce previously unrecognized, and highly undesirable, results, e.g., the almost complete erosion of previously fabricated device components. Thus, and in accordance with the inventive method, any one of a variety of techniques is employed to reduce the reaction rate between the substrate material and the entity reacting with this material, while avoiding a substantial reduction in the reaction rate between the two entities.
    Type: Grant
    Filed: May 5, 1988
    Date of Patent: November 6, 1990
    Assignee: AT&T Bell Laboratories
    Inventors: Patrick K. Gallagher, Martin L. Green, Roland A. Levy
  • Patent number: 4708884
    Abstract: Conformal layers of a silicon oxide, such as silicon dioxide, are deposited at temperatures below 600 degrees C. through the decomposition of compounds such as diacetoxyditertiarybutoxysilane. The required temperatures do not significantly affect temperature-sensitive structures. Therefore, it is possible to form silicon oxide regions in the processing of devices having these structures. More generally, lowered-temperature processing can be applied to the deposition of other materials which include silicon oxide. For example, borophosphosilicate glasses can be deposited by chemical vapor deposition processing involving flash-evaporation of a mixture of liquid precursor reagents.
    Type: Grant
    Filed: June 18, 1986
    Date of Patent: November 24, 1987
    Assignee: American Telephone and Telegraph Company, AT&T Bell Laboratories
    Inventors: Edwin A. Chandross, Robert E. Dean, Patrick K. Gallagher, Roland A. Levy, Frank Schrey, Gerald Smolinsky
  • Patent number: 4399097
    Abstract: A method of producing III-V materials by reducing a complex salt in a hydrogen atmosphere is shown. For example, complex salts reduce to InP or GaAs. The salts are conveniently prepared by coprecipitation from a salt solution or by other methods. The stoichiometry can be modified by applying an overpressure of the more volatile element or elements during reduction.
    Type: Grant
    Filed: July 29, 1981
    Date of Patent: August 16, 1983
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Patrick K. Gallagher, Murray Robbins
  • Patent number: 4246128
    Abstract: Desirable properties of manganese zinc ferrites are obtained without the need for controlling or changing the oxygen partial pressure during the sintering and cooling steps by adding a small amount of germanium or gallium to the ferrite and using an atmosphere, such as air, during the sintering and cooling steps, that has at least 1 percent oxygen by volume.
    Type: Grant
    Filed: August 8, 1979
    Date of Patent: January 20, 1981
    Assignee: Bell Telephone Laboratories, Incorporated
    Inventors: Patrick K. Gallagher, Ernst M. Gyorgy, David W. Johnson, Jr., Murray Robbins