| Buck隔离型DC/DC变换器在高剂量率条件下的总剂量辐射损伤机理研究 |
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| 引用本文： | 丛忠超,周军,李占行,常耀东,王海洋,李彭.Buck隔离型DC/DC变换器在高剂量率条件下的总剂量辐射损伤机理研究[J].微电子学,2023,53(6):988-993. |
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| 作者姓名： | 丛忠超 周军 李占行 常耀东 王海洋 李彭 |
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| 作者单位： | 中国运载火箭技术研究院 物资中心, 北京 100076 |
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| 基金项目： | 中国科学院西部之光基金资助项目(2019-XBQNXZ-B-013) |
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| 摘 要： | 对国产Buck型正激DC/DC电源变换器在高剂量率辐射条件下开展电离总剂量辐照试验。分析了DC/DC电源变换器的关键电性能参数和功能随辐照总剂量的变化情况,并对DC/DC的失效机理和失效模式进行研究。通过机理分析定位辐照敏感单元。此外,还针对DC/DC的总剂量失效阈值与辐照过程中所施加的输入电压偏置和输出电流偏置的关联关系进行分析。
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| 关 键 词： | DC/DC变换器 电离总剂量辐照 损伤机理 辐射效应 VDMOS |
| 收稿时间： | 2023/9/9 0:00:00 |
Study on the Total Dose Radiation Damage Mechanism of Buck Isolated DC/DC Converters under High Dose Rate Conditions |
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| CONG Zhongchao,ZHOU Jun,LI Zhanhang,CHANG Yaodong,WANG Haiyang,LI Peng.Study on the Total Dose Radiation Damage Mechanism of Buck Isolated DC/DC Converters under High Dose Rate Conditions[J].Microelectronics,2023,53(6):988-993. |
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| Authors: | CONG Zhongchao ZHOU Jun LI Zhanhang CHANG Yaodong WANG Haiyang LI Peng |
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| Affiliation: | Material Center, China Academy of Launch Vehicle Technology,Beijing 100076, P. R. China |
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| Abstract: | Total Ionization dose irradiation tests were conducted on the domestic product buck type forward DC/DC power converters under high dose rate radiation conditions. The key electrical parameters and functions of DC/DC power converters were analyzed according to the Total Ionization dose, and the failure mechanism and failure mode of DC/DC were studied. The sensitive unit was located through mechanism analysis. In addition, this paper also analyzed the correlation between the failure threshold of DC/DC and the input voltage bias and output current bias applied during the irradiation process. |
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| Keywords: | DC/DC converter Total Ionization dose irradiation damage mechanism radiation effect VDMOS |
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