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:
Feb. 23, 2016
Filed:
Oct. 09, 2014
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Chiaki Kudou, Toyama, JP;
Abstract
A semiconductor device of the present disclosure includes a semiconductor layer provided on a main surface of a substrate. A cell region is provided with a gate insulating film disposed on the semiconductor layer and a gate electrode disposed on the gate insulating film, and a wiring region is provided with a field insulating film disposed on the semiconductor layer and a gate wire disposed on the field insulating film. An end of the field insulating film has a convex shape in a cross section perpendicular to the main surface of the substrate, and an upper surface of the field insulating film is rougher than an upper surface of a portion of the gate wire below which the field insulating film is not disposed.