A novel enhancement-mode AlGaN/GaN high electron mobility transistor(HEMT) is proposed and studied.Specifically,several split floating gates(FGs) with negative charges are inserted to the conventional MIS structure.The simulation results revealed that the V_th decreases with the increase of polarization sheet charge density and the tunnel dielectric(between FGs and AlGaN) thickness,while it increases with the increase of FGs sheet charge density and blocking dielectric(between FGs and ...

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