Functional IC Analysis Through Chip Backside with Nano Scale Resolution—E-Beam Probing in FIB Trenches to STI Level

One method of dynamic probing in modern integrated circuits (ICs) is performed through the backside of the device. The established techniques are limited in lateral resolution because they use infrared (IR) light. This paper demonstrates how state of the art FIB circuit edit (CE) processes enable the application of E-Beam probing through chip backside on current and future IC technologies with low risk of device performance degradation.