Efficiency of Embedded On-Chip EMI Protections to Continuous Harmonic and Fast Transient Pulses with Respect to Substrate Injection

This paper presents a comparative study of the efficiency of several embedded EMI protections for integrated circuits (ICs) with respect to direct power injection (DPI) and very fast transmission-line pulsing (VF-TLP) into the substrate of the IC. This study involves three functionally identical cores, differing only by their EMI protection strategies (RC protection, isolated substrate, meshed power supply network) which were initially designed for low-emission design guidelines. Through extensive measurements, a classification between these strategies is established for both injection methods, leading to the introduction of design guidelines for the minimization of conducted susceptibility to substrate injection.