"Electrostatic discharge (ESD) can cause interference in or damage to circuits or systems in many ways e.g., by E- field or H- field coupling or via conduction paths. Although one can roughly estimate the voltage and current at the injection location during an ESD event, the real offending parameter is mostly the ESD current spreading throughout the system. Those currents can be simulated if great simplifications of the system are acceptable. However, even in moderately complex systems, the ability to simulate is limited by a lack of models and computational resources. Independent of the complexity, but obviously not free of its own limitations, is a measurement technique that captures the current as a function of time and location through the system.
This article describes an ESD current measurement technique that permits reconstruction the injected current spreading as a movie from the magnetic near-field scanning results. It describes the validation of the technique using a simplified case study. The study examined the simulation and measurement of a simplified PCB ESD structure; the design, characterization, modeling, and optimization of current scanning probes; the implementation and analysis of time domain and frequency domain scanning methods; the scanning raw data frequency and directional response compensation algorithms; the current spreading visualization methods and implementation; the modeling of simplified PCB current injection structure and verification of ESD current reconstruction results; two directions of system-level analysis with current reconstruction scanning method"--Abstract, page iii.
Drewniak, James L.
Fan, Jun, 1971-
Electrical and Computer Engineering
M.S. in Electrical Engineering
Missouri University of Science and Technology
xv, 143 pages
© 2010 Wei Huang, All rights reserved.
Thesis - Open Access
Library of Congress Subject Headings
Electric discharges -- Detection
Electric discharges -- Measurement
Print OCLC #
Electronic OCLC #
Link to Catalog Recordhttp://laurel.lso.missouri.edu/record=b10130451~S5
Huang, Wei, "Methodology and applications of electrostatic discharge current reconstruction by near-field scanning technique" (2010). Masters Theses. 5421.