ggNMOS ESD保护结构的三维电热建模

Haolu Xie, R. Zhan, A. Wang, R. Gafiteanu
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引用次数: 4

摘要

本文提出了一种简单实现的三维电热模型,用于接地栅极NMOS (ggNMOS)电路级SPICE仿真,并应用于ESD(静电放电)保护电路设计验证。采用一种新的ESD放电拟合电阻(R/sub - on/)来改进大电流区域的ESD电建模,并提出一种新的三维热敏电阻参数(R/sub - on/)来模拟ggNMOS的电热特性。讨论了新参数R/sub - on/和R/sub - th/的提取方法。最后给出了仿真结果,并与实验数据进行了比较。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
3D electro-thermal modeling of ggNMOS ESD protection structure
This work presents a simple-to-implement, 3D electro-thermal model for circuit-level SPICE simulation of grounded-gate NMOS (ggNMOS), with application for ESD (electrostatic discharge) protection circuit design verification. A new ESD discharging fitting resistor (R/sub on/) is employed to improve ESD electrical modeling in the high-current region and a new 3D thermal resistor parameter (R/sub th/) is proposed to model the electro-thermal characteristics of ggNMOS. The extraction method for the new parameters, R/sub on/ and R/sub th/, is discussed. Finally, simulation results are presented and compared with experimental data.
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