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, 2000
Filed:
Mar. 17, 1997
Applicant:
Inventors:
Hajime Akiyama, Tokyo, JP;
Kenichi Honda, Tokyo, JP;
Yousuke Morita, Gunma, JP;
Masahito Yoshikawa, Gunma, JP;
Takeshi Ohshima, Gunma, JP;
Assignees:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Japan Atomic Energy Reserch Institute, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
257131 ; 257130 ; 257119 ; 257617 ;
Abstract
A thyris a thyristor is provided in which a lifetime of a minority carrier is controlled to improve the trade-off relationship between an ON-state voltage and a turn-off time and attain a high frequency and a low loss. Shielding members formed of metal plates are provided respectively in spaces above a plane on which a cathode electrode is provided and a plane on which an anode electrode is provided.