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. 01, 2015
Filed:
Nov. 04, 2014
Mitsubishi Electric Corporation, Tokyo, JP;
Koichi Fujita, Tokyo, JP;
MITSUBISHI ELECTRIC CORPORATION, Tokyo, JP;
Abstract
A protection diode includes a semiconductor substrate; a gate side well region of a first conductivity type in the semiconductor substrate; a grounding side well region of the first conductivity type in the semiconductor substrate and joined to the gate side well region; a gate side diffusion region of a second conductivity type in the semiconductor substrate and joined to the gate side well region; a grounding side diffusion region of the second conductivity type in the semiconductor substrate, separated from the gate side diffusion region, and joined to the grounding side well region; a gate side electrode connected between a gate of a transistor and the gate side diffusion region; and a grounding electrode connected to the grounding side diffusion region. Dopant impurity concentration in the grounding side well region is lower than dopant impurity concentration in the gate side well region.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile