Problem: Silicon for computer chips is grown in large cylinders called “boules” that are 300 mm in diameter and 2 m in length, as shown. The density of silicon is 2.33 g/cm3. Silicon wafers for making integrated circuits are sliced from a 2.0 m boule and are typically 0.75 mm thick and 300 mm in diameter.What is the mass of a silicon wafer? (The volume of a cylinder is given by πr2h, where r is the radius and h is its height.)

FREE Expert Solution

Calculate the volume of a silicon wafer:

V=πr2h


h=0.75 mm×10-3 m1 mm×1 cm10-2 m

h = 0.075 cm


r=d2r=300 mm2r=150 mm×10-3 m1 mm×1 cm10-2 m

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Problem Details
Silicon for computer chips is grown in large cylinders called “boules” that are 300 mm in diameter and 2 m in length, as shown.A diamond blade slices wafers off a silicon boule cylinder that is 2 meters long. The cut wafers are 0.75 millimeters thick and 300 millimeters in diameter.  

The density of silicon is 2.33 g/cm3. Silicon wafers for making integrated circuits are sliced from a 2.0 m boule and are typically 0.75 mm thick and 300 mm in diameter.


What is the mass of a silicon wafer? (The volume of a cylinder is given by πr2h, where r is the radius and h is its height.)

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