Investigation of Frequency Models to Predict Dynamic Behavior of ESD Protection Networks
Résumé
With the shrinking dimension of technologies and
safety requirements, electrostatic discharge (ESD) protections play
a more and more important role. Consequently, the prediction of
the transient behavior’s protection network is becoming difficult
for system level designers in order to guarantee systems safety. A
model reproducing the turn- ON behavior is needed to obtain a pre-
cise simulation’s protection strategy network, especially during the
protection triggering. In this article, we propose a complete mea-
surement and computation setup to access an equivalent frequency
model of devices under strong pulse injections for a rapid model
construction. Details of the measurement and data computation to
obtain a frequency model using a transmission line pulse generator
combined with time-domain reflectometry measurement will be
provided. To validate our proposed frequency model, a comparison
between the measurements and simulations is first performed on
passive and linear components, and then on two protection de-
vices (transient voltage suppressor). A simulation on a protection
network, at the board level, will show that the combination of the
frequency models could be done to predict its response to ESD pulse
with an acceptable precision, without the tedious step of component
modeling.
Domaines
Sciences de l'ingénieur [physics]
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