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:
Nov. 08, 1994
Filed:
Dec. 11, 1992
Applicant:
Inventors:
Jan E Evetts, Cambridge, GB;
Robert E Somekh, Cambridge, GB;
Assignee:
British Technology Group Ltd., London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C30B / ;
U.S. Cl.
CPC ...
505329 ; 117994 ; 117 91 ; 505729 ; 505475 ; 20419222 ; 20419224 ;
Abstract
A method of manufacture of thin film devices involves the sputtering of an epitaxial barrier layer (11) of a metallic oxide such as magnesia on to which a further epitaxial thin film (12) is deposited. The substrate is preferably alumina and the thin film may be a high temperature superconductive compound of yttrium, barium, copper and oxygen.