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中文摘要：
本文利用改进的米勒模型模拟了金属-铁电-绝缘体-基底结构铁电场效应晶体管在电离辐射环境下的铁电薄膜极化、界面电荷密度和电荷迁移率,最终得出在不同辐射总剂量和辐射剂量率下,铁电场效应晶体管的电容和漏源电流曲线.计算结果表明,总剂量为10 Mrad时,对铁电场效应晶体管的漏源电流和电容影响甚微;总剂量为100 Mrad（1 rad=10^-2Gy）时,对其有很明显的影响.当辐射的剂量率发生变化时,铁电场效应晶体管的电流和电容也会发生改变.模拟结果表明,铁电场效应晶体管有较强的抗辐射能力.
英文摘要：
This article uses the Miller model to simulate the ferroelectric polarization of the metal-ferroelectrics-insulatorsubstrate（MFIS） structured ferroelectric field effect transistor（FeFET）, interfacial charge concentration, and charge migration rate under ionizing radiation. The capacitance and source-drain current at different total dose and different dose rate are calculated. Results show that the total dose of 0.1 MGy changes slightly the source leakage current and capacitance of the FeFET, and the total dose of 1 MGy leads to a larger variation in these quantities. When the radiation dose rate is varied, the minimal changes in the drain-source current and capacitance are observed. These results suggest that FeFET has a relatively large radiation hardness.
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