RC端角的定制与应用

设计了互连线RC端角定制流程和方法，定制出了新的RC端角，并评估了定制的RC端角对其他端角的覆盖情况.测试结果表明，在少量增加违反路径的情况下定制的RC端角对其他端角的覆盖率能够达到99%.最后，采用定制的RC端角，改进了传统的MMMC时序分析流程.应用实例中的结果表明，改进后的分析流程在以增加缓冲器单元数目和牺牲单元面积为代价的情况下大大减少了时间开销.在时序收敛的情况下，缓冲单元数增加了22.07%，单元面积增加了21.65%，但是每次时序分析工具运行时间减少了84%.

Customizing and Application of RC Corner

This paper designed the flow and method of custom RC corners, customized a new RC corner, and estimated the coverage of the custom corner. The result shows that the coverage of custom RC corner to the other corners can reach up to 99%. Finally, we improved the traditional MMMC analysis flow with the custom RC corner. The result of application case in engineering shows that the runtime of tools reduced greatly at the cost of buffer count and buffer area. The buffer count increased by 22.07% and the buffer area increased by 21.65%, whereas the runtime of tools decreased by 84% after the timing was closuring.