Interconnect Delay

Rwire

Csubstrate

Cfringe

Cload

Total RC delay = Rwire * (Csub + Cfringe + Cload)

For a long wire in which you calculate r, c PER UNIT length, the equation is:

wire delay = r*c* L*L/2

Total RC delay would then be:

Total RC delay = wire delay + Rwire*Cload

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