发明授权
- 专利标题: Automatically routing nets according to current density rules
- 专利标题(中): 根据当前密度规则自动布线网络
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申请号: US12408211申请日: 2009-03-20
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公开(公告)号: US08171447B1公开(公告)日: 2012-05-01
- 发明人: Graham Balsdon , Jeremy Birch , Mark Williams , Mark Waller , Tim Parker , Fumiaki Sato
- 申请人: Graham Balsdon , Jeremy Birch , Mark Williams , Mark Waller , Tim Parker , Fumiaki Sato
- 申请人地址: GB
- 专利权人: Pulsic Limited
- 当前专利权人: Pulsic Limited
- 当前专利权人地址: GB
- 代理机构: Aka Chan LLP
- 主分类号: G06F17/50
- IPC分类号: G06F17/50
摘要:
A technique will automatically route interconnect of an integrated circuit while taking into consideration current density rules. In an implementation, the technique uses a shape-based approach where a grid is not used. Based on data input including current density and a frequency of each net, the technique will determine the current requirements for each net. In an implementation, the technique forms a Steiner tree for a net, and routs using the Steiner tree. The technique widens nets having greater current requirements; adjacent wiring may be pushed aside to create sufficient space for wider nets.