IGBT

US9691888B1 · kind B1 · utility

Assignee

• TOYOTA JIDOSHA KABUSHIKI KAISHA · JP

Inventors

• Jun Okawara · Nisshin, JP
• Masaru Senoo · Okazaki, JP

Key dates

• Filing date: Oct 11, 2016
• Grant date: Jun 27, 2017
• Expiry date: Oct 11, 2036

Classification

• Technology area (CPC H): Electricity
• CPC primary: H10D64/519

Abstract

An IGBT includes a rectangular trench including first to fourth trenches and a gate electrode arranged inside of the rectangular trench. An n-type emitter region includes a first emitter region being in contact with the first trench, and a second emitter region being in contact with the third trench. A body contact region includes a first body contact region being in contact with the second trench, and a second body contact region being in contact with the fourth trench. A surface body region is in contact with the trenches in ranges from connection portions to the emitter regions.