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:
Mar. 15, 2005
Filed:
Mar. 26, 2003
Sun-hak Lee, Gyeonggi-do, KR;
Sun-Hak Lee, Gyeonggi-do, KR;
Samsung Electronics Co., LTD, Suwon, KR;
Abstract
In a DMOS device, a drift region is located over a substrate and is lightly doped with impurities of a first conductivity type. A plurality of body areas are located in the drift region and doped with impurities of a second conductivity type which is opposite the first conductivity type. A plurality of source areas are respectively located in the body areas and heavily doped with impurities of the first conductivity type. A plurality of bulk areas are respectively located adjacent the source areas and in the body areas, and are heavily doped with impurities of the second conductivity type. A well region partially surrounds the body areas collectively and is doped with impurities of the first conductivity.