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:
Feb. 04, 2003
Filed:
May. 18, 2001
Dietrich Widmann, late of Unterhaching, DE;
Armin Wieder, Starnberg, DE;
Justus Kuhn, München, DE;
Jens Lüpke, München, DE;
Jochen Müller, München, DE;
Peter Pochmüller, München, DE;
Michael Schittenhelm, Poing, DE;
Infineon Technologies AG, Munich, DE;
Abstract
An active surface with a source area, a channel area and a drain area is provided in a semiconductor substrate. Each of the areas lie adjacent to a main surface of the semiconductor substrate. At least one trench is provided in the main surface of the semiconductor substrate. The trench is adjacent to the channel area and is situated in the gate electrode part. The gate electrode preferably has two opposite parts which are each adjacent to the channel area. The transistor is produced using standard process steps.