Patents by Inventor Yuri Koval

Yuri Koval 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).

  • Submicron closed-form Josephson junctions
    Publication number: 20040135139
    Abstract: A method for fabricating a closed-form Josephson junction includes etching the inner shape of the closed-form junction on the chip, depositing a negative photoresist material over the etched chip, and flood exposing the backside of the chip with ultraviolet radiation. The photoresist is developed and then baked onto the chip. The baked photoresist serves as a mask for subsequent etching of the exterior of the closed-form Josephson junction. A shaped Josephson junction is fabricated with junction widths between about 0.1 &mgr;m and about 1 &mgr;m and an inner diameter ranging between about 1 &mgr;m and about 1000 &mgr;m.
    Type: Application
    Filed: December 11, 2003
    Publication date: July 15, 2004
    Inventors: Yuri Koval, Alexey V. Ustinov, Jeremy P. Hilton
  • Submicron closed-form josephson junctions
    Publication number: 20030068832
    Abstract: A method for fabricating a closed-form Josephson junction includes etching the inner shape of the closed-form junction on the chip, depositing a negative photoresist material over the etched chip, and flood exposing the backside of the chip with ultraviolet radiation. The photoresist is developed and then baked onto the chip. The baked photoresist serves as a mask for subsequent etching of the exterior of the closed-form Josephson junction. A shaped Josephson junction is fabricated with junction widths between about 0.1 &mgr;m and about 1 &mgr;m and an inner diameter ranging between about 1 &mgr;m and about 1000 &mgr;m.
    Type: Application
    Filed: August 28, 2002
    Publication date: April 10, 2003
    Inventors: Yuri Koval, Alexey V. Ustinov, Jeremy P. Hilton