公开(公告)号：US06397375B1

公开(公告)日：2002-05-28

申请号：US09507240

申请日：2000-02-18

Applicant: Adam Stuart Block ,  Jeffrey P Witte ,  Don D Josephson

Inventor： Adam Stuart Block ,  Jeffrey P Witte ,  Don D Josephson

IPC: G06F1750

CPC classification number: G06F17/5077 ,  H01L23/528 ,  H01L2924/0002 ,  H01L2924/00

Abstract: A method and system for managing metal resources in the physical design of integrated circuits is presented. Percent metal usage is allocated for intra-block routing use by each functional block. Power and clock grids are established. Block designers coordinate the locations of signal ports of the blocks so as to avoid blocking any inter-block signals, areas of metal are then reserved for ports and intra-block signals. The inter-block signals are then pre-routed, avoiding the power grid, clock grid, and reserved intra-block routing metal. If any problem nets emerge from the pre-routing, better port locations and sub-block placement within the respective blocks are determined and the process is repeated.

Abstract translation: 介绍了集成电路物理设计中管理金属资源的方法和系统。 百分比金属使用量被分配给每个功能块的块内路由使用。 功率和时钟网格建立。 块设计师协调块的信号端口的位置，以避免阻塞任何块间信号，然后将金属区域保留用于端口和块内信号。 块间​​信号然后被预先路由，避免了电网，时钟网格和保留的块内路由金属。 如果从预路由出现任何问题网络，则确定相应块内的更好的端口位置和子块布置，并重复该过程。