【摘要】 文章对电路抗辐射的机理进行了研究,提出了几种提高数字电路抗辐射能力的方法:通过工艺控制减小辐射后的背栅阈值电压漂移,通过版图增加体接触、采用环型栅等结构提高单元的抗辐射能力,通过对电路关键节点的加固提高整体电路的抗辐射能力。为了验证加固方法的可靠性,设计了一款电路进行抗总剂量、抗瞬态剂量率、抗中子辐射、抗单粒子辐射等多种试验。通过辐照试验结果可以看到,采用抗辐照方法设计的电路具有较强的抗辐照能力,为今后抗辐照电路的研制和开发奠定了坚实的基础。更多还原

【Abstract】 In this paper,we studied the mechanism of radiation and offered several optimization methods to improve the radiation-hard ability of digital circuits.According to the research,we decrease threshold voltage excursion by process control,improve the radiation-hard ability by adding body-contact and using round-gate,improve the radiation-hard ability of the key-point.This paper design a digital circuit to validate the radiation-hard method by total dose radiation experiment,trans-radiation experiment,neutron experiment and SEU experiment.According to the experiment results,the radiation-hard ability of the circuit is improved.更多还原