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. 19, 2009
Filed:
Jun. 28, 2007
Sven Lanzerstorfer, Feldkirchen, AT;
Dietmar Kotz, Moosburg, AT;
Hermann Peri, Wernberg, AT;
Norbert Krischke, Munich, DE;
Sven Lanzerstorfer, Feldkirchen, AT;
Dietmar Kotz, Moosburg, AT;
Hermann Peri, Wernberg, AT;
Norbert Krischke, Munich, DE;
Infineon Technologies Austria AG, Villach, AT;
Abstract
A trench transistor is disclosed. One embodiment has an active zone enclosed by an edge trench, wherein an edge electrode at gate potential is embedded into the edge trench, and the active zone has a mesa structure at least partly adjoining the edge trench. That region of the mesa structure which adjoins the edge trench is at least partly electrically deactivated by virtue of the fact that within this deactivated region a) the mesa structure is covered with a mesa insulation layer, and b) no source zone is provided.