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    • 86. 发明授权
    • Method of integrated circuit design checking using progressive individual network analysis
    • 集成电路设计检查方法采用渐进式单独网络分析
    • US06751744B1
    • 2004-06-15
    • US09475799
    • 1999-12-30
    • Robert J. AllenJohn M. CohnDavid J. Hathaway
    • Robert J. AllenJohn M. CohnDavid J. Hathaway
    • G06F112
    • G06F17/504G06F2217/78
    • A method for checking integrated circuit designs comprising the steps of calculating a first performance parameter by analyzing the network's sensitivity to a signal applied to the network; comparing the first performance parameter to one or more rules to determine a first pass condition and writing the value of first performance parameter to a netlist file in response to a pass to the first pass condition; followed by calculating a second performance parameter based on a first network model to determine a second pass condition in response to a fail to said first pass condition and writing the second performance parameter to the netlist file in response to a pass to said second pass condition or writing an error flag to the netlist file in response to a fail to said second pass condition is disclosed. The method, at each step, decides if a quick to calculate parameter provides sufficient design margin or if a more accurate but longer to calculate parameter is required.
    • 一种用于检查集成电路设计的方法,包括以下步骤:通过分析网络对施加到网络的信号的灵敏度来计算第一性能参数; 将所述第一性能参数与一个或多个规则进行比较以确定第一通过条件,并响应于所述第一通过条件的传递将所述第一性能参数的值写入网表文件; 随后基于第一网络模型计算第二性能参数,以响应于所述第一通过条件的失败来确定第二通过条件,并响应于所述第二通过条件的通过将所述第二性能参数写入所述网表文件,或 公开了响应于所述第二通过条件的失败向网表文件写入错误标志。 该方法在每个步骤中决定快速计算参数是否提供足够的设计余量,或者是否需要更准确但更长的计算参数。