FO4 delay and energy scaling
Replay VDD and temperature to connect standard-cell delay, switching energy, leakage, and an EDP-style index.
23.6891.2 V / -20 C20 cases
Open simulation ->LESSON PACKET / SA-DIG-001
Timing starts with a primitive.
FO4 makes delay tangible.
This packet turns FO4 into a precomputed timing card before STA: VDD, temperature, delay, energy, leakage, and EDP are kept in one evidence surface.
FO4 TIMING
A tiny delay card can discipline a large timing conversation.
Before library characterization, OpenROAD flow reports, or STA path evidence, FO4 gives a learner a concrete vocabulary for VDD, temperature, delay, energy, and leakage.
STA Liberty path slack replay
Replay VDD, temperature, load, and path depth to connect Liberty-style delay terms with setup slack, hold slack, and timing-report criticality.
-341.266 ps-14.47 ps81 cases
Open simulation ->Next evidence step
The correct next upgrade is not live arbitrary HDL. It is an artifact-based timing ladder: standard-cell sizing, Liberty condition cards, OpenROAD reports, and STA path replay.
Open digital roadmap ->Public boundary
No Liberty characterization, arbitrary synthesis, STA service, PDK ingestion, live SPICE, upload, account, payment, comment, or signoff workflow is active. This is a precomputed timing primitive.
Open Digital domain ->