Abstract

A long-time constant-capacitance deep level transient spectroscopy (LT-CC-DLTS) method has been established to investigate the energy distribution D it and the capture-cross-section σ n/p of states at the interface of 6H SiC/MOS structures. A comparison of dry and wet oxidation (1120°C) reveals a change in the distribution of interface states and a different magnitude of capture-cross-sections indicating that the interface states consist of at least two types of defects.

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