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.

Date of Patent:
Apr. 17, 2001

Filed:

Jun. 04, 1999
Applicant:
Inventors:

Hideo Ihara, Tsukuba, JP;

Masayuki Hirabayashi, Kashiwa, JP;

Akira Iyo, Tsukuba, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 3/924 ; C04B 3/5622 ; C23C 1/423 ;
U.S. Cl.
CPC ...
H01L 3/924 ; C04B 3/5622 ; C23C 1/423 ;
Abstract

A process for preparing a superconductor which is a low anisotropy, high temperature superconductor, includes providing a target in molded form comprised of one of the superconductor or constituent elements of the superconductor, the superconductor having a layered crystal structure, having a superconducting transition temperature, Tc, of 110 K or more, and having a composition expressed by Cu,M,Ae,Ca,Cu,O,where M is at least one member selected from the group consisting of (a) a trivalent ion of Tl, and (b) polyvalent ions of Mo, W, and Re, Ae is at least one of Ba and Sr, x ranges from 1 to 10, and y ranges from 2x&plus;1 to 2x&plus;4, and z ranges from 0<z&lE;0.5; and forming a film of the superconductor from the target on a substrate by one of sputtering or laser abrasion.


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