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Performance Boosting DTCO Methodology for 1-to-1 Metal-Gate Pitch Ratio
DescriptionWe addressed 1:1 GR Tech. challenges, Maximize pros and Minimize cons. In this work, we proposed 1) DR/PDN optimization to minimize the loss of routing resource by increasing routability through the method of getting more pin points and better pin connection. Also, we proposed 2) enhanced design flow for maximize RC benefit by increasing 1st Mx usage more in critical path due to 1st Mx has best RC delay among local routing layers. Our experiment shows that 0.9% performance gain can be achieved in 580K industrial design using the DR/PDN optimization to reduce 1% total wire length and increase 2% Mx routing ratio compared to simple migration, and total 1.8% performance gain can be achieved in 580K design through enhanced design flow to increase additional 4% Mx routing ratio in critical path.