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. 16, 2014
Filed:
May. 29, 2013
Kabushiki Kaisha Toshiba, Tokyo, JP;
Masatoshi Arai, Hyogo-ken, JP;
Takashi Tabuchi, Hyogo-ken, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
A semiconductor device includes a first-conductivity-type semiconductor substrate, a first first-conductivity-type semiconductor layer, a second first-conductivity-type semiconductor layer, a second-conductivity-type bottom layer, a Schottky metal, and a cathode electrode. The first first-conductivity-type semiconductor layer is provided on the semiconductor substrate and has a lower first-conductivity-type impurity concentration than the semiconductor substrate. The second first-conductivity-type semiconductor layer is provided on the first first-conductivity-type semiconductor layer and has a higher first-conductivity-type impurity concentration than the first first-conductivity-type semiconductor layer. The Schottky metal is provided on the second first-conductivity-type semiconductor layer. The Schottky metal contacts with partly the first first-conductivity-type semiconductor layer. The second-conductivity-type bottom layer is provided in the first first-conductivity-type semiconductor layer and is connected to the Schottky metal. The cathode electrode is connected to the semiconductor substrate.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile