GaN器件质子辐照与电场综合试验系统及方法  

Comprehensive Proton Irradiation and Electric Field Testing System and Method for GaN Devices

作　　者：季启政 刘尚合 王志浩[2] 杨铭 丁义刚[2] 王思展 沈自才[2] 刘宇明[2] JI Qizheng;LIU Shanghe;WANG Zhihao;YANG Ming;DING Yigang;WANGSizhan;SHEN Zicai;LIU Yuming(National Key Laboratory on Electromagnetic Environment Effects,Army Engineering University,Shijiazhuang 050003,Hebei,China;Beijing Institute of Spacecraft Environment Engineering,Beijing 100094,China;Beijing Orient Institute of Measurement and Test,Beijing 100086,China)

机构地区：[1]陆军工程大学电磁环境效应重点实验室,河北石家庄050003 [2]北京卫星环境工程研究所,北京100094 [3]北京东方计量测试研究所,北京100086

出　　处：《兵工学报》2023年第6期1704-1712,共9页Acta Armamentarii

基　　金：国家自然科学基金青年科学基金项目(61904007)。

摘　　要：基于GaN器件质子辐照损伤机制和退化特性,根据剂量深度分布等效拟合原理,提出与地球同步轨道质子辐照环境等效的多能质子综合辐照试验方法。针对空间内带电问题计算电路板材料的充电电位,设计用于内带电效应模拟的静电场和瞬态电场的模拟方法及装置。建立质子辐照与电场综合试验系统并开展初步的试验。研究结果表明:GaN器件在跨导峰值处的栅源电压随质子注量发生偏移;相对于单独质子辐照,质子和电场综合作用下器件特征参数变化速度更快,幅度更大,证明了所提试验方法及系统的有效性。Based on the proton irradiation damage mechanism and degradation characteristics of GaN devices,and according to the equivalent fitting principle of dose depth distribution,a comprehensive multi-energy proton irradiation testing method equivalent to the proton irradiation environment in geosynchronous orbit is proposed.The charging potential of circuit board materials is calculated for the problem of internal charging in space,and the simulation method and device for electrostatic field and transient electric field used for the simulation of internal charging effect are designed.A comprehensive proton irradiation and electric field testing system is established and preliminary tests are carried out.The test results showed that:the gate source voltage at peak transconductance of GaN devices shifts with the proton fluence.Compared with proton irradiation alone,the characteristic parameters of devices under the combined action of proton and electric field change faster and more significantly,which proves the effectiveness of the proposed testing method and system.

关 键 词：GAN器件 质子辐照 电场 综合试验 

分 类 号：TJ301[兵器科学与技术—火炮、自动武器与弹药工程]