CONSIDERATIONS ON THE INFLUENCE OF THE GROUNDING SET-UP CONFIGURATION ON ESD SUSCEPTIBILITY

Alexandru Salceanu, Mihai Cretu, Liviu Breniuc
Abstract:
Some unexpected failures during ESD tests upon a sensitive fluxgate magnetometer leaded to measurements of the ground potential of the three PCBs, composing our DUT. A significant improvement of the minimum discharge voltage causing errors was obtained only after reducing the impedance of the shielded internal ground lead and equalizing the lengths of the grounding cables connecting the three “shelves” to the “ESD common point ground”. RF measurements techniques and results, graphics, models and equivalent circuits are presented.
Keywords:
ground potential, ESD immunity
Download:
IMEKO-TC4-2002-112.pdf
DOI:
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