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Answer the following multiple choice questions. Select the correct answer and write your answer on the answer book directly [14 marks]. (1) In the periodic element table, B is the group III element and P is the group V element. The drain of NMOS is doped by (a) B (b) P (c) None of them (2) In the periodic element table, B is the group II element and P is the group V element. The source of PMOS is doped by (a) B (b) P (c) None of them (3) Which of the following dimensions is generally regarded as the feature size in CMOS? (a) Gate width (b) Gate thickness (c) Gate length (d) None of them (4) For the CMOS circuit shown below (Figure Q3), the threshold voltage VT is 2.0 V, VDD=5 V. gate voltage in A=3 V, gate voltage in B= 0 V, thus, the value of Vour is (a) 0V (b) 2.0 V (c) 3V (d) 5V