Why NDRs given to clock ?

[manikanta.9332]

why NDRs given to clock ?
if Not given NDRs to clock what Happens?

Thanks........

 

[ankurpandey310]

Non- Default routing rules like double spacing, double width, shielding etc are used to make the clock routes less sensitive to cross talk or EM effects.
Hence to avoid such effects at the later stage we should give the NDrules atthe CTS stage itself.

 

[manikanta.9332]

Thanks ankurpandey310 ........