Similar But Different — The Tale Of Transient And Permanent Faults

When determining whether an IC is safe from random hardware faults, applying safety metrics such as PMHF, SPFM, and LFM, engineers must analyze both transient and permanent faults. This paper highlights the fundamental differences between permanent and transient faults on digital circuits, and why this distinction is important in the context of the ISO 26262:2018 functional safety standard. ... » read more