Denso Corporation

University of Cambridge

The University of Sheffield

Jeremy Rashid

Rajesh Kumar Malhan

Florin Udrea

C Mark Johnson

Cyril Buttay

Yuuichi Takeuchi

A power electronic package includes: first and second high thermal conductivity insulating non-planar substrates; and multiple semiconductor chips and electronic components between the substrates. Each substrate includes multiple electrical insulator layers and patterned electrical conductor layers connecting to the electronic components, and further includes multiple raised regions or posts, which are bonded together so that the substrates are mechanically and electrically connected. The number, arrangement, and shape of the raised regions or posts are adjusted to have mechanical separation between the substrates. The electrical conductor layers are separated and isolated one another so that multiple electric circuits are provided on at least one of the substrates.

Power electronic package having two substrates with multiple semiconductor chips and electronic components

A wide band gap semiconductor device has a transistor cell region, a diode forming region, an electric field relaxation region located between the transistor cell region and the diode forming region, and an outer peripheral region surrounding the transistor cell region and the diode forming region. In the transistor cell region, a junction field effect transistor is disposed. In the diode forming region, a diode is disposed. In the electric field relaxation region, an isolating part is provided. The isolating part includes a trench dividing the transistor cell region and the diode forming region, a first conductivity-type layer disposed on an inner wall of the trench, and a second conductivity-type layer disposed on a surface of the first conductivity-type layer so as to fill the trench. The first conductivity-type layer and the second conductivity-type layer provide a PN junction.

Wide band gap semiconductor device including junction field effect transistor

Growing community of inventors

Singapore, Singapore

Jeremy Rashid