1. 中国科学院 机构 微电子研究所,浙江,杭州,310053
2. 中国科学院大学 机构
3. 中国科学院 硅器件技术重点实验室,北京,100029
4. 北京中科新微特科技开发股份有限公司, 北学,100029
纸质出版:2019
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王琳, 宋李梅, 王立新, 罗家俊, 韩郑生. 一种提升抗单粒子能力的新型超结结构[J]. 微电子学与计算机, 2019, 36(9): 84-88.
WANG Lin, SONG Li-mei, WANG Li-xin, et al. A proposed structure to improve SEE performance for 700 V Super-Junction VDMOS[J]. 2019, 36(9): 84-88.
为了提升超结器件在空间辐照环境下的可靠性
针对额定电压为700 V的超结器件提出了一种新型结构.加固的结构在标准SJVDMOS平面栅的基础上刻蚀掉部分栅极
同时引入了一个肖特基接触来提升器件的抗单粒子能力.2D synopsyssentaurus TCAD对器件进行了仿真建模
并通过单粒子的瞬态仿真来评估器件的SEE性能
仿真结果表明加固之后的器件在单粒子效应下的整体安全工作区大幅增加
器件抗单粒子烧毁和抗单粒子栅穿的能力都明显提升
同时新型结构的电学性能也维持了良好的水平.
In this paper
a new structure to improve the SEE performance for 700 V Super-Junction VDMOS is proposed. Part of the planar gate of the device is etched away
adding a Schottky contactto enhance the SEE performance.2D synopsyssentaurus TCAD is used to do simulation
and transient simulation is used to evaluate the SEE performance of the device. The simulation result shows that the overall safe working area of the device after reinforcement iseffectively increased
and the SEB and SEGR performance both improved significantly. At the same time
the electrical performance of the new structure also maintains a good level.
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