The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Oct. 02, 1984
Filed:
Mar. 30, 1983
Peter L Young, North Wales, PA (US);
Richard M Josephs, Willow Grove, PA (US);
John A Coleman, Warrington, PA (US);
Sperry Corporation, New York, NY (US);
Abstract
A novel method of depositing the oxide barrier junction on a base electrode of a Josephson junction device is provided. An ionized oxygen plasma region is generated juxtaposed the surface of the base electrode to be oxidized. The pressure of the oxygen in the vacuum chamber is held at a predetermined high pressure where the zero voltage supercurrent is found to be independent of oxygen pressure variations and the flow of oxygen through the vacuum chamber is stabilized at the optimum minimum necessary for growth of the oxide barrier junction. The oxide barrier junctions so produced have consistent and predictable supercurrent densities.