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Nonlinear Spark Resistance and Capacitive Circuit Models of Electrostatic Discharge

Journal Article · · IEEE Transactions on Plasma Science

Over the past century, several models of spark discharge have been developed that approximate the effect of a spark channel in a circuit as a nonlinear resistance. In this article, we review the physical derivations of a set of spark models, and give analytical and numerical solutions to spark discharges in simple capacitive circuits. In electrostatic discharge (ESD), we find the drop in spark resistance is limited by the initial stored charge in the system. For a simpler ESD model (spark resistance in series with the electrode capacitance), we obtain the analytical solutions for a spark resistance model of a general integral form, consisting of the time integral of the current raised to an arbitrary power. Herein, we also consider a circuit with an additional fixed “victim” resistance in series with the spark resistance, and capacitance. Here, although the general case requires numerical solution, it is possible to find asymptotic limits for the case of the Rompe and Weizel spark model. Our analysis provides insights into system response that can, for example, be used to evaluate risk zones of parameter space for ESD protection.

Research Organization:
Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
Sponsoring Organization:
USDOE National Nuclear Security Administration (NNSA)
Grant/Contract Number:
89233218CNA000001
OSTI ID:
1822722
Report Number(s):
LA-UR--19-20975
Journal Information:
IEEE Transactions on Plasma Science, Journal Name: IEEE Transactions on Plasma Science Journal Issue: 2 Vol. 48; ISSN 0093-3813
Publisher:
IEEECopyright Statement
Country of Publication:
United States
Language:
English

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