The load limit on each path to avoid EM is estimated and provided as an input to various early design stages (such as placement and routing). Each (of one or more) of the early stages may ensure that the load limit is not violated. Techniques such as increasing the path width and inserting additional circuit (e.g., a buffer cell) in the path, may be employed to avoid the EM violations. As a result, unneeded iterations of design stages may be avoided for purposes of EM checks alone.

 
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> Evolutionary programming of configurable logic devices

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