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中国物理学会期刊

金属-氧化物-半导体器件γ辐照温度效应

CSTR: 32037.14.aps.49.1331

TEMPERATURE EFFECTS OF γ-IRRADIATED METAL-OXIDE-SEMICONDUCTOR FIELD-EFFECT-TRAN SISTOR

CSTR: 32037.14.aps.49.1331
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  • 研究了金属-氧化物-半导体(MOS)器件在γ射线辐照条件下的温度效应.采用加固的CC4007进 行辐照实验,在不同温度、不同偏压,以及不同退火条件下对MOS器件的辐照效应进行了比 较,发现温度对辐照效应的影响主要是决定界面态建立的快慢.高温下辐照的器件,界面态 建立的时间缩短.根据实验结果对器件阈值电压漂移的机理进行了探讨.

     

    Effects of irradiation temperature are explored for metal-oxide-semiconductor de vice under γ-rays.Hardened CC4007 chips were irradiated under different tempera tures,gate bias and annealing conditions.Threshold voltage shift was divided int o Vot and Vit using mid-gap voltage method.Finally,the mec hanism of threshold shift was discussed.

     

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