Detection of gate oxide charge trapping by second-harmonic generation

@inproceedings{Fang1999DetectionOG,
  title={Detection of gate oxide charge trapping by second-harmonic generation},
  author={Jiye Fang and Guo Ping Li},
  year={1999}
}
The high-electric-field-induced trapped oxide charge and neutral oxide traps of a metal–oxide–semiconductor field-effect transistor gate oxide are investigated by surface second-harmonic light generation (SHG). The electric-field dependence of the SHG intensity is sensitive to the charge trapped at the interface between the oxide and the silicon substrate. The time dependence of the SHG intensity probes the characteristics of the neutral trap sites in the oxide.