The effort to take advantage of gallium nitride is partly a response to technical and economic factors that have slowed improvement in silicon-based chips. While companies are still finding ways to fabricate smaller transistors in silicon, reductions in cost and power consumption have been more difficult to achieve. But gallium-nitride circuits can switch on and off much more quickly than silicon and handle higher voltages, said Alex Lidow, EPC’s chief executive. That makes the material particularly good for chores that involve power conversion.
Wall Street Journal
June 22, 2015