Design a CMOS A+B+C with a PMOS equivalent transistor of 3 and an equivalent NMOS Transistor =40

1. Draw the net or graph representing the Pull Down network of your circuit
2. Calculate the W/L of equivalent NMOS and PMOS transistor
3. Calculate VOH and VOL of the previous circuit and tr,(t rise)

(Please explain "why?", with step-by-step details. Thank you.) [This is all the information given to solve this exercise.]

Use the following Specs if they are not stated in the problem.

V_DD=3 V u_nC_ox=1 =206 uA/V² V_TN0=0.45 V V_TP0=0.79 V (W/L)_N=40 (W/L)_P=3

C_L=13 pF g=0.026V 2fF=0.6V b= 28 V_BE=0.7V