Power switching module with reduced oscillation

US9070571B2 · kind B2 · utility

Assignee

• Infineon Technologies AG · DE

Inventors

• Josef Lutz · Rohrau, AT
• Hans-Joachim Schulze · Taufkirchen, DE

Key dates

• Filing date: Mar 15, 2013
• Grant date: Jun 30, 2015
• Expiry date: Mar 15, 2033

Classification

• Technology area (CPC H): Electricity
• CPC primary: H01L2924/0002

Abstract

A power switching module includes a three-terminal power semiconductor device designed for a rated current and a freewheeling unit. The freewheeling unit includes a pn-diode integrated in a first semiconductor material having a first band-gap, and a Schottky-diode integrated in a second semiconductor material having a second band-gap that is larger than the first band-gap. The Schottky-diode is electrically connected in parallel to the pn-diode.