Abstract

In this investigation, an ESD-discharge is applied to a housing of a pcb. The pcb is included with one of its supply systems and decoupling capacitors. The decoupling capacitors are modeled with their parasitics and field coupling. Variations of the simulation show the influence of the proximity of the ground strap and the inclusion of the field sensitivity of the capacitors. With optimized setup the circuitry of the supply system is changed to minimize the interference at critical supply pins due to an ESD contact discharge.

Slide deck

Presenter Bio

Joachim Held was born in 1960 in Germany. He graduated in 1986 in electrical engineering at the Technical University of Erlangen, Germany. In 1996, he joined Siemens AG, delivering EMC design support with measurement and simulation. Currently, his focus lies on Pl-simulation in research and development for motion-control-systems at Siemens in Erlangen.

Innovations:
•    Principle of inductive current-dividing for supply-systems.
•    Special measurement method for VLSI-supply-currents