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:
Jun. 23, 2015
Filed:
Sep. 04, 2012
Wolfgang Werner, Munich, DE;
Wolfgang Werner, Munich, DE;
Infineon Technologies Austria AG, Villach, AT;
Abstract
According to an embodiment of a field-effect semiconductor device, the field-effect semiconductor device includes a semiconductor body and a source electrode. The semiconductor body includes a drift region, a gate region and a source region of a first semiconductor material having a first band-gap and an anode region of a second semiconductor material having a second band-gap lower than the first band-gap. The drift region is of a first conductivity type. The gate region forms a pn-junction with the drift region. The source region is of the first conductivity type and in resistive electric connection with the drift region and has a higher maximum doping concentration than the drift region. The anode region is of the second conductivity type, forms a heterojunction with the drift region and is spaced apart from the source region. The source metallization is in resistive electric connection with the source region and the anode region.