Assuming (W/L)1 = 2 μm/0.18 μm and (W/L)1 = 5 μm/0.18 μm, find the voltage transfer characteristic of the inverter in Fig. 1. Compute the voltage expressions for every operating region of the transistors and find the drain currents of M1 and M2 for Vin = VDD/2. Comment on possible improvements to reduce this current. Figure 1 For the transistors in this question, assume VDD = 1.8 V, μnCox = 100 μAV−1, μpCox = 50 μAV−1, Vthn = 0.4 V, Vthp = −0.5 V, λn = λp = 0.