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:
Jan. 01, 1991
Filed:
Mar. 23, 1988
Applicant:
Inventor:
Ken Takanashi, Itami, JP;
Assignee:
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ;
U.S. Cl.
CPC ...
357 38 ; 357 39 ;
Abstract
Respective side ends (20s, 1s) of a T.sub.1 electrode (20) and a gate electrode (1) of a TRIAC (70) are mutually adjacent and located on a P.sub.1 layer (13). The side ends (20s, 1s) are connected electrically by a resistance area (13a) which is made of the same material as a semiconductor material used to make the P.sub.1 layer (13). A gate current branches into first and second branch currents (I.sub.GT1, I.sub.GT2). Because the second branch current does not contribute to the turn on of the TRIAC, undesirable (dv/dt) turn on is prevented.