Screening small-delay defects using inter-path correlation to reduce reliability risk
Detection of small delay defects under presence of process variations. Delays in the slack-time interval and even delays in shorter paths can be detected. Inter-Path delay correlation information is used to screen out small delay defects. The output signal can be captured at multiple observation intervals. Test quality improves leading to higher product reliability.
small-delay defects inter-path correlation reliability process variation delay testing