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:
Jun. 20, 2023

Filed:

May. 26, 2021
Applicant:

Infineon Technologies Dresden Gmbh & Co. KG, Dresden, DE;

Inventors:

Ahmed Mahmoud, Freising, DE;

Franz Hirler, Isen, DE;

Marco Mueller, Pirna, DE;

Rolf Weis, Dresden, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 29/06 (2006.01); H01L 21/761 (2006.01); H01L 29/40 (2006.01);
U.S. Cl.
CPC ...
H01L 29/0634 (2013.01); H01L 21/761 (2013.01); H01L 29/404 (2013.01);
Abstract

A semiconductor device includes a layer stack with first and second semiconductor layers of complementary doping types are arranged alternatingly between first and second surfaces of the layer stack. A first semiconductor region adjoins the first semiconductor layers and has a first end arranged in a first device region and extends from the first end into a second device region. Second semiconductor regions adjoin at least one of the second semiconductor layers. A third semiconductor region adjoins the first semiconductor layers. The first semiconductor region extends from the first device region into the second device region and is spaced apart from the third semiconductor region. The second semiconductor regions are arranged between, and spaced apart from, the third and first semiconductor regions. A fourth semiconductor region adjoins the first semiconductor layers, is spaced apart from the first semiconductor region, and is arranged in the first device region between the first end of the first semiconductor region and the third semiconductor region.


Find Patent Forward Citations

Loading…