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problem about Trig. skew rise/fall skew

icmaple

after CTS,

Trig. Edge Skew                : 437.7(ps)              150(ps)            
Rise Skew                      : 561.6(ps)             
Fall Skew                      : 1129.8(ps)     

which skew need us care ?   

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  • icmaple
    Kari 您好！ after CTS, if falling skew is larger than trig.skew, can i only care trig. skew and ignore falling skew? ++++++++ 2009-09-23 04:35:48 <>在来信中写道：+++++++++++++++++++++++++++++++ > > >In the "Synthesizing Clock Trees" chapter of the User Guide, there is a section called "How CTS Calculates Skew Values" which explains this. The >
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  • icmaple
    Kari 您好！ after CTS, if falling skew is larger than trig.skew, can i only care trig. skew and ignore falling skew? ++++++++ 2009-09-23 04:35:48 <>在来信中写道：+++++++++++++++++++++++++++++++ > > >In the "Synthesizing Clock Trees" chapter of the User Guide, there is a section called "How CTS Calculates Skew Values" which explains this. The >
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