Chapter 1, Problem 40GP

Computer chips (Fig. 1–13) etched on circular silicon wafers of thickness 0.300 mm are sliced from a solid cylindrical silicon crystal of length 25 cm. If each wafer can hold 100 chips, what is the maximum number of chips that can be produced from one entire cylinder?

Multiply the number of chips per wafer times the number of wafers that can be made from a cylinder.

$\left(100\frac{\text{chips}}{\text{wafer}}\right)\left(\frac{\text{1 wafer}}{0.300\text{ mm}}\right)\left(\frac{250\text{ mm}}{1\text{ cylinder}}\right)=\boxed{83,000\frac{\text{chips}}{\text{cylinder}}}$