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:
Mar. 21, 2023
Filed:
Jun. 17, 2021
Infineon Technologies Ag, Neubiberg, DE;
Infineon Technologies Dresden Gmbh & Co. KG, Dresden, DE;
Matteo Dainese, Munich, DE;
Alexander Philippou, Munich, DE;
Markus Beninger-Bina, Grosshelfendorf, DE;
Ingo Dirnstorfer, Dresden, DE;
Erich Griebl, Dorfen, DE;
Christian Jaeger, Munich, DE;
Johannes Georg Laven, Taufkirchen, DE;
Caspar Leendertz, Munich, DE;
Frank Dieter Pfirsch, Munich, DE;
Infineon Technologies AG, Neubiberg, DE;
Infineon Technologies Dresden GmbH & Co. KG, Dresden, DE;
Abstract
A power semiconductor switch includes an active cell region with a drift region, an edge termination region, and IGBT cells within the active cell region. Each IGBT cell includes trenches that extend into the drift region and laterally confine mesas. At least one control trench has a control electrode for controlling the load current. At least one dummy trench has a dummy electrode electrically coupled to the control electrode. At least one further trench has a further trench electrode. At least one active mesa is electrically connected to a first load terminal within the active cell region. Each control trench is arranged adjacent to no more than one active mesa. At least one inactive mesa is adjacent to the dummy trench. A cross-trench structure merges each control trench, dummy trench and further trench to each other. The cross-trench structure overlaps at least partially along a vertical direction with the trenches.