发明名称 |
Standard cell library having cell drive strengths selected according to delay |
摘要 |
A cell library which enables reduced quantization over-design in large scale circuit design is provided. Library cells having the same cell function have drive strengths selected to provide delays about equal to a predetermined set of design delays, at a nominal load corresponding to the cell function. In contrast, conventional cell libraries typically have drive strengths which correspond to a predetermined set of cell physical areas. Preferably, the spacing between adjacent design delays is a non-decreasing function of cell drive strength. Such spacing reduces quantization induced over-design compared to conventional cell libraries which have a design delay spacing that is a decreasing function of cell drive strength.
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申请公布号 |
US2005278658(A1) |
申请公布日期 |
2005.12.15 |
申请号 |
US20040856345 |
申请日期 |
2004.05.27 |
申请人 |
ZHANG XIAONAN;WANG MICHAEL X |
发明人 |
ZHANG XIAONAN;WANG MICHAEL X. |
分类号 |
G06F9/45;G06F17/50;(IPC1-7):G06F17/50 |
主分类号 |
G06F9/45 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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