Influence of fluorine on radiation-induced charge trapping in the SIMOX buried oxides

Charge trapping in the fluorinated SIMOX buried oxides before and after ionizing radiation has been investigated by means of C-V characteristics. Radiation-induced positive charge trapping which results in negative shift of C-V curves can be restrained by implanting fluorine ions into the SIMOX buried oxides. Pre-radiation charge trapping is suppressed in the fluorinated buried oxides. The fluorine dose and post-implantation anneal time play a very important role in the control of charge trapping.

Charge trapping in the fluorinated SIMOX buried oxides before and after ionizing radiation has been investigated by means of C-V characteristics. Radiation-induced positive charge trapping which results in negative shift of C-V curves can be restrained by implanting fluorine ions into the SIMOX buried oxides. Pre-radiation charge trapping is suppressed in the fluorinated buried oxides. The fluorine dose and post-implantation anneal time play a very important role in the control of charge trapping.

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Chinese Inst Elect.; IEEE Beijing Sect.; IEEE Elect Devices Soc.; IEEE EDS Beijing Chapter.; IEEE Solid-State Circuits Soc.; IEEE SSCS Beijing Chapter.; Japan Soc Appl Phys.; IEE Elect Div.; URSI Commiss D.; Inst Elect Engineers Korea.; Natl Nat Sci Fdn China.; Beijing Municipal Bureau Ind Dev.; Peking Univ.

Chinese Acad Sci, Inst Semicond, Beijing 100083, Peoples R China

Chinese Inst Elect.; IEEE Beijing Sect.; IEEE Elect Devices Soc.; IEEE EDS Beijing Chapter.; IEEE Solid-State Circuits Soc.; IEEE SSCS Beijing Chapter.; Japan Soc Appl Phys.; IEE Elect Div.; URSI Commiss D.; Inst Elect Engineers Korea.; Natl Nat Sci Fdn China.; Beijing Municipal Bureau Ind Dev.; Peking Univ.