双极电压比较器电离辐射损伤及剂量率效应分析

发布时间：2018-02-01 18:25

本文关键词： 双极电压比较器 Coγ辐照剂量率效应辐射损伤　出处：《物理学报》2014年02期 　论文类型：期刊论文

【摘要】：为了对双极电压比较器在电离辐射环境下的损伤变化特征及其剂量率效应进行研究,选择一组器件,在不同偏置条件下进行60Coγ高低剂量率的辐照和退火试验.结果表明:电压比较器的电源电流、偏置电流及失调电压等多个关键参数都有不同程度的蜕变;偏置条件对于电压比较器的辐射响应有很大影响;此外,不同公司生产的同种型号电路表现出不同的剂量率效应;通过对测试结果分析,系统地讨论了各参数变化的原因,并结合电离损伤退火特性,探讨了各剂量率效应形成的机理.研究结果对工程应用考核提供了参考,而且为设计抗辐射加固器件提供了依据.
[Abstract]:In order to study the damage characteristics and dose rate effect of bipolar voltage comparator in ionizing radiation environment, a group of devices are selected. The irradiation and annealing experiments at high and low dose rate of 60Co 纬 were carried out under different bias conditions. The results showed that the power supply current of the voltage comparator was obtained. Many key parameters, such as bias current and offset voltage, all have different degrees of metamorphosis. The bias condition has great influence on the radiation response of the voltage comparator. In addition, the same type of circuits produced by different companies show different dose-rate effects; Through the analysis of the test results, the causes of the variation of the parameters are systematically discussed, and the mechanism of the formation of each dose rate effect is discussed in combination with the characteristics of ionization damage annealing. The results provide a reference for engineering application evaluation. It also provides a basis for the design of radiation-resistant reinforcement devices.
【作者单位】：中国科学院特殊环境功能材料与器件重点实验室新疆电子信息材料与器件重点实验室中国科学院新疆理化技术研究所;中国科学院大学;
【分类号】：TM714.2
【正文快照】： 1引言电压比较器被广泛用于模数接口、自动控制、电平监测以及波形变化等领域,是航天电子器件不可或缺的一员.然而,工作在这些电离辐射环境中的半导体器件,不可避免地要遭受电离辐照的影响.电离辐照引起晶体管基极电流增加,增益减少等,这些参数对于电压比较器有着至关重要的

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