基于DMSA的快速ECO修复

s timing signoff becomes more and more complicated and difficult, two methods based on distributed multi-scenario analysis are proposed. These solutions cover all scenarios in PrimeTime, which are combined with the fast timing ECO commands and scripts. Without sacrifice of setup time, one can use not too many buffers to realize fast hold violations fixing with setup of flexible parameters. The other one can fix maximum transition violations quickly. An experiment based on UniCore shows these solutions are able to shorten the time of timing violati- ons fixing and DRC fixing greatly, so static timing analysis becomes easy and fast.