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:
Aug. 18, 1992
Filed:
Dec. 26, 1990
Hideo Matsuda, Yokohama, JP;
Takashi Fujiwara, Yokohama, JP;
Michiaki Hiyoshi, Yokohama, JP;
Hisashi Suzuki, Yokohama, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A gate turn-off thyristor of the crimp and anode shortcircuit type includes a semiconductor pellet having anode, cathode and gate electrodes formed on each of first and second main surfaces thereof, with the gate electrode entering into the cathode electrodes. First and second electrode members are positioned sandwiching the semiconductor pellet between them and opposing to the electrodes. First and second electrode posts are positioned sandwiching the semiconductor pellet and the electrode members between them and opposing to the electrode members. Those faces of the electrodes, electrode members and electrode posts which are opposed to one another are not fixed but contact-pressed to one another. The semiconductor pellet has at the outer rim portion thereof a region where no current flows. The outer rim of each of the electrode member and post terminates on the region through which no current flows.