Die yield Wafer yield x 1 (1 Defects per unit area x Die area) N Chip Die Size (mm 2) Estimated defect rate (per cm 2) N Manufacturing size (nm) Transistors (billion) Cores BlueDragon 180 0 03 12 10 7 5 4 RedDragon 120 0 04 14 7 7 5 4 Phoenix 200 0 04 14 7 12 8 Figure 1 26 Use the die yield formula with values provided in Figure 1 26 They will sell a range of chips from that factory, and they need to decide how much capacity to dedicate to each chip Imagine that they will sell two chips Phoenix is a completely new architecture designed with 7nm technology in mind, whereas RedDragon is the same architecture as their 10 nm BlueDragon Imagine that RedDragon will make a profit of $15 per defect free chip Phoenix will make a profit of $30 per defect free chip Each wafer has a 450 mm diameter How much profit do you make on each wafer of Phoenix chips How much profit do you make on each wafer of RedDragon chips

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Die yield   Wafer yield x 1 (1   Defects per unit area x Die area) N Chip Die Size (mm 2) Estimated defect rate (per cm 2) N Manufacturing size (nm) Transistors (billion) Cores BlueDragon 180 0 03 12 10 7 5 4 RedDragon 120 0 04 14 7 7 5 4 Phoenix 200 0 04 14 7 12 8 Figure 1 26 Use the die yield formula with values provided in Figure 1 26 They will sell a range of chips from that factory, and they need to decide how much capacity to dedicate to each chip  Imagine that they will sell two chips  Phoenix is a completely new architecture designed with 7nm technology in mind, whereas RedDragon is the same architecture as their 10 nm BlueDragon  Imagine that RedDragon will make a profit of $15 per defect free chip  Phoenix will make a profit of $30 per defect free chip  Each wafer has a 450 mm diameter  How much profit do you make on each wafer of Phoenix chips  How much profit do you make on each wafer of RedDragon chips

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Die yield = Wafer yield x 1/(1 + Defects per unit area x Die area) N Chip Die Size (mm 2) Estimated defect rate (per

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Chip	Die Size (mm²⁾	Estimated defect rate (per cm²⁾	N	Manufacturing size (nm)	Transistors (billion)	Cores
BlueDragon	180	0.03	12	10	7.5	4
RedDragon	120	0.04	14	7	7.5	4
Phoenix	200	0.04	14	7	12	8