Calculate the 50% level rise delay at the end of a 500 um x 0.5 um wire. Given that, the sheet resistance is 0.08 /um, overlap capacitance is 30 aF/um”, fridge capacitance is 40 aF/um and the internal resistance of the signal source is 100 2. The load capacitance at the end of wire can be neglected. 

(i) Use lamped parameters.

(ii) Use distributed parameters.

(iii) Use ladder model dividing the wire into 10 um pieces.