oTransition Time (Slew):
- Set a max_transition constraint. tool will automatically insert buffers as needed to ensure no segment of the clock tree exceeds this targeted trans limit.
- Skew:
- Set a target skew limit. tool will use this as a target for balancing.
- Clock mesh or multi tap CTS instead of a conventional tree, or building a well-balanced H-tree, can control skew.
- Using NDRs with wider wires reduces RC variation, which helps minimize skew.
