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:
May. 06, 2014
Filed:
Sep. 30, 2008
Anton Mauder, Kolbermoor, DE;
Franz Hirler, Isen, DE;
Armin Willmeroth, Augsburg, DE;
Michael Rueb, Faak am See, AT;
Holger Kapels, Holzkirchen, DE;
Anton Mauder, Kolbermoor, DE;
Franz Hirler, Isen, DE;
Armin Willmeroth, Augsburg, DE;
Michael Rueb, Faak am See, AT;
Holger Kapels, Holzkirchen, DE;
Infineon Technologies Austria AG, Villach, AT;
Abstract
A semiconductor device has a cell field with drift zones of a first type of conductivity and charge carrier compensation zones of a second type of conductivity complementary to the first type. An edge region which surrounds the cell field has a higher blocking strength than the cell field, the edge region having a near-surface area which is undoped to more weakly doped than the drift zones, and beneath the near-surface area at least one buried, vertically extending complementarily doped zone is positioned.