Self-aligned n-channel metal-oxide-semiconductor field effect transistor on high-indium-content In0.53Ga0.47As and InP using physical vapor deposition HfO2 and silicon interface passivation layer

2008 
In this work, we present the electrical and material characteristics of TaN∕HfO2∕In0.53Ga0.47As and InP substrate metal-oxide-semiconductor capacitors and self-aligned n-channel metal-oxide-semiconductor field effect transistor (n-MOSFET) with physical vapor deposition Si interface passivation layer. Excellent electrical characteristics, thin equivalent oxide thickness (∼1.7nm), and small frequency dispersion (<2%) were obtained. n-channel high-k InGaAs- and InP-MOSFETs with good transistor behavior and good split capacitance-voltage (C-V) characteristics on In0.53Ga0.47As and InP substrates have also been demonstrated.
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