Some other solutions to this are wrong on chegg. Do not cooy paste from there.

An interconnect has the geometry with T$\_($a$)=0\mathrm{.}90$um$,$w$=0\mathrm{.}35$um$,$t$=1\mathrm{.}2$um

The interconnect has a sheet resistance of Rs$=0\mathrm{.}04$ ohm. Find the

values of R$\_($m$)$ and C$=$ if the line is $50$ um long.

ii$.$ Contruct an m$=3$RC ladder equivalent for the line, then use the model

to determine the time constant. Compare this with the time constant

obtained using simpler formula $\backslash$tau $=$R$\_()$C$\_($m$).$