Dorado News: “Find the dominant scenarios from hundreds of sign-off corners”
08 APR 2019

 

Under the situation of processing numerous scenarios at the tape-out stage, running all corners in ECO tools is time-consuming.

To solve this issue, conventional methods handpick critical timing corners based on STA reports, which is a tedious and time-demanding job. Even worse, it does not guarantee to cover the majority of critical violations.

To address the difficulty, Tweaker not only automatically analyzes sign-off STA data but also utilizes library corner scaling technique to extract the most critical ones. It then categorizes scenarios into different priority levels:
 

 

Tier 1 corners: scenarios that must be read

Tier 2 corners: scenarios that are recommended to monitor

Tier 3 corners: scenarios that can be ignored
 

 

 
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