(a) Shown in Figure 1 on page 2 is a 5-input CMOS gate. (1) Determine the function of Y (ii) Draw a stick diagram for the function derived in Part (1). (iii) If the space required for a wiring track is 42 of width by 4 of spacing from its neighbor, i.e., a total pitch of 82, estimate the silicon area required of your stick diagram in Part (ii). B D B DD C-40 A E E B+5 Figure 1 O Y (b) Explain the cause of velocity saturation. What is the effect of velocity saturation on the drain current of an nMOS transistor when it is operating in the saturation mode? (6 Marks) . Draw a digital BiCMOS circuit for the function Y = (A + BC) (D E + F). Explain if your circuit permits rail-to-rail voltage swing. (6 Marks)