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. 16, 2003
Filed:
Aug. 30, 2001
Yasuhiko Onishi, Nagano, JP;
Tatsuhiko Fujihira, Nagano, JP;
Katsunori Ueno, Nagano, JP;
Susumu Iwamoto, Nagano, JP;
Takahiro Sato, Nagano, JP;
Fuji Electric Co., Ltds., , JP;
Abstract
The super-junction semiconductor device, which facilitates increased switching speed and reduced on-resistance, includes an alternating conductivity type layer formed of n-type drift regions and p-type partition regions arranged alternately, a pair of the n-type drift region and p-type partition region repeating at a first repeating pitch, and trenches each containing a gate electrode buried therein, the trenches being arranged repeatedly at a second repeating pitch wider than the first repeating pitch. The device further includes one or more n-type channel regions between a p-type partition regions and a p-type well region.