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.

Date of Patent:
Feb. 23, 2021

Filed:

Aug. 16, 2018
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Hans-Guenter Eckel, Rostock, DE;

Quang Tien Tran, Rostock, DE;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/739 (2006.01); H01L 29/78 (2006.01); H01L 29/861 (2006.01); H01L 29/06 (2006.01); H01L 29/10 (2006.01); H01L 29/872 (2006.01); H01L 29/08 (2006.01); H01L 29/423 (2006.01);
U.S. Cl.
CPC ...
H01L 29/7397 (2013.01); H01L 29/0615 (2013.01); H01L 29/0696 (2013.01); H01L 29/1095 (2013.01); H01L 29/78 (2013.01); H01L 29/785 (2013.01); H01L 29/8613 (2013.01); H01L 29/872 (2013.01); H01L 29/0847 (2013.01); H01L 29/4238 (2013.01);
Abstract

A power semiconductor device includes a semiconductor body, a first load terminal structure arranged at a front side of the semiconductor body, and a second load terminal structure arranged at a back side of the semiconductor body, and configured for controlling a load current between the load terminal structures by means of at least one transistor cell. The at least one transistor cell is at least partially included in the semiconductor body and electrically connected to the first load terminal structure on one side and to a drift region on the other side, the drift region being of a first conductivity type. The semiconductor body further includes: a transistor short region of the first conductivity type, wherein a transition between the transistor short region and the first load terminal structure forms a Schottky contact; and a separation region of a second conductivity type separating the transistor short and drift regions.


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