Building Clock Tress

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aditya1579

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What is the difference between building clock trees with inverters versus clock buffers ?

What are the advantages / disadvantages of one versus the other ?

Thanks,
Aditya
 

Hai aditya,

The main difference is delay will be less for invertor compare to buffer in most cases
 

The clock std cell has same delay for both transition.
Inverter and buffer are needed to give more flexibility to the tool.
 

Inverters will have same rise and fall delay which is not in case of buffer and which is required for maintaining a min clock pulse width .
 

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