Research coordination for power semiconductor technology

The National Power Semiconductor Interagency/Utility Consortium has been formed to coordinate US research activities for development of materials and technologies related to high-power semiconductors. The history, activities, and investment strategy of this consortium are described briefly. The most promising power electronics devices considered by the consortium are discussed, leading to the conclusion that field-effect transistors and metal-oxide semiconductor (MOS) controlled thyristors (MCTs) will eventually dominate power-switching applications. New packaging techniques are also presented, in which silicon is used to replace bulky ceramic insulators and copper contacts, an arrangement that promises to lower costs and weight while improving device performance and life. Finally, the authors review policy issues related to power semiconductor research and recommend that R&D in this field be treated as a leading national priority.< >