1. Consider a semiconductor with n = 2000 cm/V-s and p = 800 cm/V-s. Compute and plot the resistivity p versus the carrier density n for 104 n 100 cm. Plot as linear-linear and log-log plots. pn = n 1024 cm. 2 = 2. The resistivity of an insulator is p = 105 ohm-cm. For an electron mobility = 5 cm/V-s, determine the electron density (in units of cm) in this insulator. Neglect the hole contribution. 3. A semiconductor manufacturer produces chips of size 12mmx12mm. These chips sell for $ 15 with a profit of $ 3.50. The chips are produced on 200 mm diameter wafers. What is the profit per wafer? Then the facility is converted to 300 mm wafers. How much profit per wafer if the profit/chip remains the same?