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Method and apparatus for compensating for ionizing radiation induced threshold shift in metal oxide semiconductor field transistors
Method and apparatus for compensating for ionizing radiation induced threshold shift in metal oxide semiconductor field transistors
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机译:用于补偿金属氧化物半导体场晶体管中的电离辐射引起的阈值偏移的方法和装置
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摘要
A compensation circuit and method for compensating for the threshold shift in an irradiated MOSFET. The method determines the gate threshold voltage to body voltage relationship to vary the body voltage with radiation. The compensation circuit has at least one MOSFET having the same channel type as the MOSFET being compensated. The at least one matching MOSFET is connected to the gate of the MOSFET being compensated. At least one MOSFET having a channel type that is different from the channel type of the MOSFET being compensated is connected to the gate of the matching MOSFET. The result is that the compensation circuit controls a negative shift in the body voltage of the MOSFET being compensated resulting in a higher threshold voltage.
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