Patents by Inventor Jeffrey Frederick Roeder

Jeffrey Frederick Roeder 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).

  • Article comprising a capacitor with non-perovskite Sr-Ba-Ti oxide dielectric thin film
    Patent number: 5932905
    Abstract: Ba--Sr--Ti-oxide dielectric material, with at least 60 atomic percent of the total content of the oxide being Ti, can have relatively high dielectric constant K (>40 at 20.degree. C.) and relatively low second order voltage coefficient a.sub.2 of the dielectric constant (a.sub.2 <100 PPM V.sup.2 at 20.degree. C.). In preferred embodiments the dielectric material has nominal composition (BA.sub.x Sr.sub.y Ti.sub.1--x--y)-oxide, with 1--x--y in the range 0.65-0.90, with both x and y greater than or equal to 0.05. Ba, Sr and Ti together typically comprise at least 99 atomic percent of the total metal content of the dielectric material.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: August 3, 1999
    Assignees: Lucent Technologies Inc., Advanced Technology Materials, Inc.
    Inventors: Henry Miles O'Bryan, Jr., Jeffrey Frederick Roeder, Gregory T. Stauf, Roderick Kent Watts