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:
Dec. 19, 1989
Filed:
May. 31, 1988
Applicant:
Inventors:
Yutaka Harada, Kodaira, JP;
Shinichiro Yano, Hachioji, JP;
Mutsuko Miyake, Urawa, JP;
Ushio Kawabe, Nishitama, JP;
Toshikazu Nishino, Kawasaki, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357-5 ; 357-2 ; 357-4 ; 357 22 ; 357 231 ; 357 237 ; 357 59 ; 357 55 ;
Abstract
Superconducting electrodes are formed on a semiconductor which serves as a channel. A control electrode is disposed through an insulator film or a p-n junction on the side of the semiconductor which is opposite to the semiconductor side on which the superconducting electrode is formed. A superconducting current which flows between the superconducting electrodes across the semiconductor is controlled by an electric signal which is applied to the control electrode, thereby enhancing the current gain.