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:
Sep. 20, 2016
Filed:
Aug. 21, 2014
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Hikari Tajima, Koganei, JP;
Masaki Kondo, Yokkaichi, JP;
Tsukasa Nakai, Yokkaichi, JP;
Takashi Izumida, Yokohama, JP;
Nobuaki Yasutake, Yokkaichi, JP;
Kabushiki Kaisha Toshiba, Minato-ku, JP;
Abstract
According to an embodiment, a semiconductor device includes at least two control electrodes, a plurality of semiconductor layers and an insulating film. Each control electrode extends in a first direction. The semiconductor layers are provided between the control electrodes, and arranged in the first direction. Each semiconductor layer extends in a second direction orthogonal to the first direction. The insulating film covers side surfaces of the semiconductor layers, and is disposed between the control electrodes. Each semiconductor layer has a side surface that includes at least one curved surface swelling in a direction from a center of the semiconductor layer to the insulating film.