中国物理B ›› 2023, Vol. 32 ›› Issue (2): 28502-028502.doi: 10.1088/1674-1056/ac7b1d
Yuankang Chen(陈远康), Yuanliang Zhou(周远良), Jie Jiang(蒋杰), Tingke Rao(饶庭柯), Wugang Liao(廖武刚)†, and Junjie Liu(刘俊杰)
Yuankang Chen(陈远康), Yuanliang Zhou(周远良), Jie Jiang(蒋杰), Tingke Rao(饶庭柯), Wugang Liao(廖武刚)†, and Junjie Liu(刘俊杰)
摘要: A novel structure of low-voltage trigger silicon-controlled rectifiers (LVTSCRs) with low trigger voltage and high holding voltage is proposed for electrostatic discharge (ESD) protection. The proposed ESD protection device possesses an ESD implant and a floating structure. This improvement enhances the current discharge capability of the gate-grounded NMOS and weakens the current gain of the silicon-controlled rectifier current path. According to the simulation results, the proposed device retains a low trigger voltage characteristic of LVTSCRs and simultaneously increases the holding voltage to 5.53 V, providing an effective way to meet the ESD protection requirement of the 5 V CMOS process.
中图分类号: (Semiconductor-device characterization, design, and modeling)