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:
Sep. 09, 2014
Filed:
Aug. 23, 2013
Abb Technology Ag, Zurich, CH;
Munaf Rahimo, Uezwil, CH;
Marco Bellini, Schlieren, CH;
Maxi Andenna, Dättwil, CH;
Friedhelm Bauer, Semione, CH;
Iulian Nistor, Niederweningen, CH;
ABB Technology AG, Zurich, CH;
Abstract
An insulated gate bipolar device is disclosed which can include layers of different conductivity types between an emitter electrode on an emitter side and a collector electrode on a collector side in the following order: a source region of a first conductivity type, a base layer of a second conductivity type, which contacts the emitter electrode in a contact area, an enhancement layer of the first conductivity type, a floating compensation layer of the second conductivity type having a compensation layer thickness t, a drift layer of the first conductivity type having lower doping concentration than the enhancement layer and a collector layer of the second conductivity type.