$($Sedra P$16\mathrm{.}1)$ Consider MOS transistors fabricated in a $65-$nm process for which nCox $=$

$540$ A$/$V$2,$ pCox $=100$ A$/$V$2,$ Vtn $=$Vtp $=0\mathrm{.}35$ V$,$ and VDD $=1$ V$.$

$($a$)$ Find Ron of an NMOS transistor with W$/$L $=1\mathrm{.}5.$

$($b$)$ Find Ron of a PMOS transistor with W$/$L $=1\mathrm{.}5.$

$($c$)$ If Ron of the PMOS device is to be equal to that of the NMOS device in $($a$),$ what must

$($W$/$L$))$p be$?$