公开(公告)号：US10755024B1

公开(公告)日：2020-08-25

申请号：US16148182

申请日：2018-10-01

Applicant: Cadence Design Systems, Inc.

Inventor： Wing Kai Chow ,  Mehmet Yildiz ,  Zhuo Li

IPC: G06F30/394 ,  G06F30/327 ,  G06F111/20 ,  G06F111/04

Abstract: The present disclosure relates to a system and method for routing in an electronic circuit design. Embodiments may include providing, using a processor, a hierarchical electronic design having a plurality of partitions, at least one routing blockage, a source pin location, and one or more sink pin locations. Embodiments may also include generating a routing wire network configured to connect the source pin location and the one or more sink pin locations to create one or more segments, wherein generating the routing wire network includes creating two or more feed-through ports at one or more of the plurality of partitions. Embodiments may further include applying a maze-routing approach to each of the one or more segments of the routing wire network to form a routed net associated with the hierarchical electronic design.

公开(公告)号：US10031994B1

公开(公告)日：2018-07-24

申请号：US15219008

申请日：2016-07-25

Applicant: CADENCE DESIGN SYSTEMS, INC.

Inventor： Wen Hao Liu ,  Jhih-Rong Gao ,  Mehmet Yildiz ,  Charles Alpert ,  Zhuo Li

IPC: G06F17/50

Abstract: Disclosed herein are systems and methods to reduce wirelength and congestion in an integrated circuit (IC) design. The systems and methods disclosed herein may be implemented during a detailed placement stage of IC design to identify and select a cell for relocation and determine an area of interest to which the cell can be relocated. The systems and methods may identify one or more potential locations within the area of interest where the cell can be relocated to, and then determine a cost based upon the wirelength and/or congestion for the selected cell, at each of the one or more potential locations. Upon determining that a potential location may have a lower cost compared to the original location of the selected cell, the systems and methods may relocate the selected cell to the potential location.