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:
May. 06, 2014
Filed:
Apr. 16, 2012
Ryouichi Kawano, Matsumoto, JP;
Tomoyuki Yamazaki, Matsumoto, JP;
Michio Nemoto, Higashi Chikuma Gun, JP;
Mituhiro Kakefu, Matsumoto, JP;
Ryouichi Kawano, Matsumoto, JP;
Tomoyuki Yamazaki, Matsumoto, JP;
Michio Nemoto, Higashi Chikuma Gun, JP;
Mituhiro Kakefu, Matsumoto, JP;
Fuji Electric Co., Ltd., Kawasaki-shi, JP;
Abstract
In a semiconductor device having a pn-junction diode structure that includes anode diffusion region including edge area, anode electrode on anode diffusion region, and insulator film on edge area of anode diffusion region, the area of anode electrode above anode diffusion region with insulator film interposed between anode electrode and anode diffusion region is narrower than the area of insulator film on edge area of anode diffusion region.