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:
Jun. 15, 1993
Filed:
May. 21, 1990
Tatsuro Usuki, Osaka, JP;
Hiroshi Suzuki, Hirakata, JP;
Ichiro Yasui, Shijonawate, JP;
Yorinobu Yoshisato, Hirakata, JP;
Sanyo Electric Co., Ltd., Moriguchi, JP;
Abstract
The present invention provides a process for producing a superconducting transistor on a surface of an insulating substrate. A pre-superconducting thin film contains a material that can be changed into a superconductor during subsequent processing but which is initially a non-superconductor. A thin film containing the material required by the pre-superconducting thin film is deposited in a preferred pattern on the pre-superconducting thin film. The assembly thus formed is heat treated to permit the material from the thin film to enter the pre-superconducting thin film, thereby forming superconducting regions in the pre-superconducting thin film in the preferred pattern. The superconducting regions form electrodes of the transistor.