View source for Method:PEX pole-shift triage

== PEX pole-shift triage ==
Procedure for diagnosing post-layout pole shifts after PEX netlist extraction.

# Diff pre-layout vs post-PEX AC response.
# Identify the shifted pole; correlate to added layout parasitics (routing, via resistance).
# Confirm with a reduced parasitic netlist.

''TBD — flesh out from Calibre/PEX workflow.''