BACKGROUND

The present disclosure relates generally to the field of integrated circuits, and more particularly to injecting noise in a printed circuit board to mask sensitive signals generated by ICs.

Printed circuit boards (PCBs) mechanically support, and electrically connect, a plurality of electronic components, including integrated circuits (ICs). Power is often provided to the electronic components using a set of planes, such as a power plane that carries a voltage and a reference, or ground, plane. The electronic components connect to these planes using a series of vias and traces.

SUMMARY

Embodiments of the present disclosure include a method, computer program product, and system for masking a sensitive signal by injecting noise into planes of a printed circuit board (PCB). The method comprises detecting, by a secondary integrated circuit (IC), a noise signal on a shared plane of a PCB that includes the secondary IC. The noise signal may be analyzed to determine the characteristics of the noise signal. A masking signal may be generated based on the characteristics. The masking signal may then be injected onto the shared plane.

The above summary is not intended to describe each illustrated embodiment or every implementation of the present disclosure.

