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. 07, 2004
Filed:
Jun. 06, 2003
Gerald Deboy, München, DE;
Dirk Ahlers, München, DE;
Helmut Strack, München, DE;
Michael Rueb, Faak a. See, AT;
Hans Martin Weber, Villach, AT;
Infineon Technologies AG, Munich, DE;
Abstract
A semiconductor component having a semiconductor body comprises a blocking pn junction, a source zone of a first conductivity type and bordering on a zone forming the blocking pn junction of a second conductivity type complementary to the first conductivity type, and a drain zone of the first conductivity type. The side of the zone of the second conductivity type faces the drain zone forming a first surface, and in the region between the first surface and a second surface areas of the first and second conductivity type are nested in one another. The areas of the first and second conductivity type are variably so doped that near the first surface doping atoms of the second conductivity type predominate, and near the second surface doping atoms of the first conductivity type predominate. Furthermore a plurality of floating zones of the first and second conductivity type is provided.