For the past three decades, Silicon-based power management efficiency and cost have shown steady improvement. In the last few years, however, the rate of improvement has slowed as the Silicon power MOSFET has asymptotically approached its theoretical bounds. Gallium Nitride grown on top of a silicon substrate could displace Silicon across a significant portion of the power management market.

By Alex Lidow, PhD
Power Electronics Europe
Issue 2, 2010

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