Transistor device

US10461739B2 · kind B2 · utility

Assignee

• Infineon Technologies Austria AG · AT

Inventors

• Thomas Basler · Riemerling, DE
• Roman Baburske · Otterfing, DE
• Johannes Georg Laven · Taufkirchen, DE
• Franz-Josef Niedernostheide · Hagen am Teutoburger Wald, DE
• Hans-Joachim Schulze · Taufkirchen, DE

Key dates

• Filing date: Mar 15, 2018
• Grant date: Oct 29, 2019
• Expiry date: Mar 15, 2038

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D84/83
• WIPO field: Basic communication processes
• WIPO sector: Electrical engineering

Abstract

Transistor devices are provided. A transistor device includes a unipolar transistor coupled between a first terminal and a second terminal; and a bipolar transistor coupled in parallel to the unipolar transistor between the first terminal and the second terminal. The bipolar transistor is configured to carry a majority of a current flowing through the transistor device when at least one of the current or a control voltage controlling the unipolar transistor and the bipolar transistor exceeds a predetermined threshold. The bipolar transistor is further configured to have a threshold voltage higher than a threshold voltage of the unipolar transistor, and a difference between the threshold voltage of the bipolar transistor and the threshold voltage of the unipolar transistor is at least 1 V.