Patents by Inventor Maurice H. Francombe

Maurice H. Francombe 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: 5146299
    Abstract: A ferroelectric device that comprises a polarizing thin film of BaMF.sub.4 deposited on a substrate. Ba is barium, M is one of the metals of the group consisting of iron (FE), manganese (Mn), cobolt (Co), nickel (Ni), magnesium (Mg), and zinc (Zn). The substrate is silicon, sapphire, or gallium arsenide. A non-volatile NDRO and DRO memory cell and methods for depositing the thin film. A method of depositing bismuth titanate on a substrate are described.
    Type: Grant
    Filed: March 2, 1990
    Date of Patent: September 8, 1992
    Assignee: Westinghouse Electric Corp.
    Inventors: Donald R. Lampe, Samar Sinharoy, Shu Y. Wu, Harry Buhay, Maurice H. Francombe, S. Visvanathan Krishnaswamy
  • Patent number: 4213781
    Abstract: Solid layer semiconductor compositions are deposited by the simultaneous sputtering from a sputter target and electrically discharge a reacting gas preferably by application of an RF potential. Preferably, the method is used to make solid solution layers and most desirably solid solution epitaxial layers of at least two semiconductor materials. The method may be used to make novel metastable compositions such as (GaAs).sub.1-x Si.sub.x, (GaAs).sub.1-x, Ge.sub.x, (InSb).sub.1-x Si.sub.x, (InSb).sub.1-x Ge.sub.x, (InAs).sub.1-x Si.sub.x and (InAs).sub.1-x Ge.sub.x (where x is a number greater than about 0.01, and x+(1-x)=1, and Ga.sub.x As.sub.y Si.sub.z, Ga.sub.x As.sub.y Ge.sub.z, In.sub.x Sb.sub.y Si.sub.z, In.sub.x Sb.sub.y Ge.sub.z, In.sub.x As.sub.y Si.sub.z, In.sub.x As.sub.y Ge.sub.z and In.sub.x Sb.sub.y As.sub.z (where x, y and z are numbers greater than about 0.01, and x+y+z=1).
    Type: Grant
    Filed: November 20, 1978
    Date of Patent: July 22, 1980
    Assignee: Westinghouse Electric Corp.
    Inventors: Alexander J. Noreika, Maurice H. Francombe
  • Patent number: 4088546
    Abstract: A method of forming interconnections is described wherein small gaps between contacts are bridged by electroplating metal onto both contacts to form a conductive path therebetween. Many interconnections may be made simultaneously between adjacent contacts by bridging the gap with metal by electroplating.
    Type: Grant
    Filed: March 1, 1977
    Date of Patent: May 9, 1978
    Assignee: Westinghouse Electric Corp.
    Inventors: Shu-Yau Wu, Nathan Bluzer, Maurice H. Francombe, Arthur S. Jensen
  • Patent number: 4047214
    Abstract: An electrostatically bonded dielectric-on semiconductor device, such as a ferroelectric field-effect transistor or amplifying acoustic surface wave transducer, is made with a dielectric body having properties selected from the group consisting of ferroelectricity and piezoelectricity. The dielectric body has opposed first and second major surfaces, with at least said first major surface of planar configuration to which a semiconductor body is electrostatically bonded. The semiconductor body is of a bulk material and a given conductivity type, and has first and second opposed major surfaces, with at least the first major surface of planar configuration where the semiconductor body is electrostatically bonded. At least one and typically a plurality of electrodes are positioned on the dielectric body to provide for interaction between transport carriers in the semiconductor body and electric polarization changes in the dielectric body. Preferably, the dielectric-on-semiconductor is made by the method described.
    Type: Grant
    Filed: September 4, 1975
    Date of Patent: September 6, 1977
    Assignee: Westinghouse Electric Corporation
    Inventors: Maurice H. Francombe, Shu-Yau Wu
  • Patent number: 3979271
    Abstract: Solid layer semiconductor compositions are deposited by the simultaneous sputtering from a sputter target and electrically discharge a reacting gas preferably by application of an RF potential. Preferably, the method is used to make solid solution layers and most desirably solid solution epitaxial layers of at least two semiconductor materials. The method may be used to make novel metastable compositions such as (GaAs).sub.1.sub.-x Si.sub.x, (GaAs).sub.1.sub.-x Ge.sub.x, (InSb).sub.1.sub.-x Si.sub.x, (InSb).sub.1.sub.-x Ge.sub.x, (InAs).sub.1.sub.-x Si.sub.x and (InAs).sub.1.sub.-x Ge.sub.x (where x is a number greater than about 0.01, and x + (1-x) = 1, and Ga.sub.x As.sub.y Si.sub.z, Ga.sub.x As.sub.y Ge.sub.z, In.sub.x Sb.sub.y Si.sub.z, In.sub.x Sb.sub.y Ge.sub.z, In.sub.x As.sub.y Si.sub.z, In.sub.x As.sub.y Ge.sub.z and In.sub.x Sb.sub.y As.sub.z (where x, y and z are numbers greater than about 0.01, and x + y + z = 1).
    Type: Grant
    Filed: July 23, 1973
    Date of Patent: September 7, 1976
    Assignee: Westinghouse Electric Corporation
    Inventors: Alexander J. Noreika, Maurice H. Francombe