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:
Jan. 21, 2003
Filed:
Feb. 17, 2000
Paul Antony Jerred, Manchester, GB;
Zetex PLC, Chadderton, GB;
Abstract
A semiconductor device comprising a drain region, a body region overlying the drain region and defining an upper surface, source regions extending from adjacent the upper surface of the body region towards the drain region, and a series of indentations extending into and through the body region such that lower side walls of each indentation are defined by portions of the body and drain regions and upper side walls of each indentation are defined by the source region. A lower portion of each indentation is filled with a gate region isolated from the side walls by a first insulating layer and covered by a second insulating layer. A source conductor overlies the upper surface and is electrically connected to the source regions, and a gate conductor is electrically connected to each gate region. The source conductor extends into all upper portion of each indentation to contact portions of the upper side Walls of the indentation which are defined by the source regions.