[Cost of ICs] Fab cost = $1B, Die Size = 389 mm^2 Defect density = 0.30 per cm^2 Wafer size = 300 mm Chip 1 area = 150 mm^2, Profit = $20 Chip 2 area = 250 mm^2, Profit = $25 How much profit per wafer of Chip 1? How much profit per wafer of Chip 2? Which chip would you to produce? Why?