High-Performance Normally-OFF GaN MIS-HEMTs Using Hybrid Ferroelectric Charge Trap Gate Stack (FEG-HEMT) for Power Device Applications
IEEE Electron Device Letters(2018)
摘要
A GaN metal-insulator-semiconductor-high electron mobility transistor (HEMT) using hybrid ferroelectric charge trap gate stack (FEG-HEMT) is demonstrated for normally-OFF operation. The ferroelectric (FE) polarization increases the number of trapped charges in the HfON charge trapping layer, leading to high positive threshold voltage (Vth) shift for the normally-OFF device. Besides, under the posi...
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关键词
Logic gates,Gallium nitride,Iron,Hafnium compounds,Aluminum oxide,HEMTs,Electron traps
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