公开(公告)号：US10198551B1

公开(公告)日：2019-02-05

申请号：US15680646

申请日：2017-08-18

Applicant: Cadence Design Systems, Inc.

Inventor： Amin Farshidi ,  Zhuo Li ,  Charles Jay Alpert ,  William Robert Reece

IPC: G06F17/50

Abstract: Systems, methods, media, and other such embodiments described herein relate to trimming cell lists prior to generation of a routing tree for a circuit design. One embodiment involves accessing a cell library including cell data and a cell list for a plurality of cells. Specialized delay cells are removed from the cell list, and remaining cells are analyzed to identify a set of cell characteristics. Cells are then trimmed from the cell list based on comparisons between the cell characteristics of the remaining cells. If certain cells are sufficiently similar, secondary characteristics can be used to further trim the cell list. The trimmed cell list can then be used to generate a routing tree for the circuit design according to associated design criteria.