Capacitance

The 16.6 ohm implementation of contact CDM (LICCDM) recently published in ANSI-ESD Standard Practice 5.3.3 is shown to produce waveforms of similar shape, I_fail, and I_peak vs. C_eff dependency as JS-002. The non-monotonicity of JS-002 at low voltages is overcome using LICCDM. A path to joint standardization with air discharge testing is proposed.

This article presents the fundamentals and application of capacitors. What is a capacitor, and how do we select them? Techniques of selecting capacitors and things to consider when using capacitors are highlighted. Both practical examples and simulation are used to demonstrate the key points.

Grounding is often viewed from separate points of view - safety, ESD, or EMI.  This article combines all these aspects together so that practitioners can address grounding at the factories and in the laboratories in a comprehensive way.

Heat flow analysis for semiconductor ESD situations can be approximated to one dimension, and then captured with a generalized Ohm’s Law using a complex impedance. Methods can include time-dependent electrothermal pulses and feedback due to self-heating, with solutions readily carried out on any desktop computer.

This is the fourth article in a series of articles devoted to the design, test, and EMC emissions evaluation of 1- and 2-layer PCBs that contain AC/DC and/or DC/DC converters, and employ different ground techniques.