Publication
IEEE Journal of Solid-State Circuits
Paper
Backside optical emission diagnostics for excess IDDQ
Abstract
Backside optical emission was used to diagnose excess quiescent current in a multimillion gate microprocessor. Emission images showed the current was due to FET's improperly set in a conducting state. The utility of backside optical emission for IC diagnostics is discussed, and requirements for optical detectors and sample preparation are considered.