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:
Aug. 30, 1988
Filed:
Mar. 23, 1987
John J Talvacchio, Churchill Boro, PA (US);
Alexander I Braginski, Pittsburgh, PA (US);
Michael A Janocko, Edgewood Boro, PA (US);
John R Gavaler, Penn Hills Township, Allegheny County, PA (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
Disclosed is a superconducting Josephson junction which comprises a layer of niobium nitride on a substrate, an epitaxial layer of a pseudo-binary compound on the layer of niobium nitride, where the pseudo-binary compound has the composition about 3 atomic percent MgO--about 97 atomic percent CaO, to about 97 atomic percent MgO--about 3 atomic percent CaO, and an epitaxial layer of niobium nitride on the layer of pseudo-binary compound. Also disclosed is a method of making a Josephson junction by depositing a layer of niobium nitride onto a suitable substrate, depositing an expitaxial layer of a pseudo-binary compound onto the layer of niobium nitride, where the pseudo-binary compound has a composition of about 3 atomic percent MgO--about 97 atomic percent CaO, to about 97 atomic percent MgO--about 3 atomic percent CaO, and depositing an epitaxial layer of niobium nitride onto the layer said pseudo-binary compound.