Patent ID: 9159725
Filing Date: 2015-10-13
Classification: H01L,H03K

Abstract:
1. A semiconductor device, comprising: a depletion mode gallium nitride field effect transistor (GaN FET) in which a drain of said depletion mode GaN FET is coupled to a drain terminal of said semiconductor device; an n-channel metal oxide semiconductor (NMOS) transistor configured to operate in an enhancement mode, in which a drain of said NMOS transistor is coupled to a source of said depletion mode GaN FET; and a gate network which independently controls a turn-on time and a turn-off time of said depletion mode GaN FET in conjunction with a gate to drain capacitance of the GaN FET, said gate network being coupled to a gate of said depletion mode GaN FET, a source of said NMOS transistor and a gate of said NMOS transistor.