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Library Re-characterization Guide

anurans

Hi All, this questions is about the characterization of cell library using Liberate 16.

1. When characterizing a custom made cell using ccs model, do we need to still provide slew/capacitive load combinations in the tcl files ? Or does ccs automatically find the slew values corresponds to specified load by simulations (suppose I use spectre as the external simulator) ?

2. For the re-characterization of a cell library for low voltage operation, can we use the tcl file generated by Liberate from the existing .lib file ? So here my concerns is again about the slew/load combinations in the existing lib. Shouldn't slew values be updated by doing simulations by our-self ? Or liberate does it self ?

Thanks in advance

Anuradha

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  • anurans

    Since the post has been moved to custom IC design forum, any inputs to my question would be greatly appreciated !

    Anuradha

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  • anurans

    Since the post has been moved to custom IC design forum, any inputs to my question would be greatly appreciated !

    Anuradha

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