oWe can run IR aware full flow
- IR aware placement : Spread high power density hotspots to reduce IR drop. Tools settings using setPlaceMode. This is useful even during routing as during optimization tool adds buf/inv and updates placement increamentally.
- CCopt/SkewClock: skew the clock to minimize peak current
- Reinforce_pg: Auto RPG: Loacl PG stripe/via addition in hotspot area. (separate utility from cadence. Needs voltus IR setup as input.
- Fill: Maximize PG hookup at signoff stage.
- https://support.cadence.com/apex/ArticleAttachmentPortal?id=a1O3w000009foP9EAI&pageName=ArticleContent
In general routers are now performs rudimentary current density estimation on wires and handles IR/RM.