Ge Energy Power Conversion Technology Gmbh

Rolls-royce Corporation

Converteam Technology Ltd.

Sean Joseph Loddick

David Reginald Trainer

Allan David Crane

Stuart Ian Bradley

David Hinchley

Andrew Mackay

Campbell David Booth

A semiconductor device or power electronic device is described. The device includes a pair of pole pieces, each having a profiled surface. A semiconductor body or wafer, preferably of wide bandgap electronic material, is located between the pole pieces and includes contact metallization regions. The semiconductor body produces an electric field that emerges from an edge region. Passivation means includes a first or radially inner part in contact with the edge region of the semiconductor body and which diffuses the electric field as it emerges from the edge region and a second or radially outer part. The second part of the passivation is in contact with the first part and provides a substantially void-free interface with the profiled surface of each pole piece. The device may be immersed in a dielectric liquid.

Power electronic devices

Growing community of inventors

Warwickshire, United Kingdom

Sean Joseph Loddick