Question & Answer: Germanium (Ge) is a semiconductor, which is sometimes used to make semiconductor…..

$2. Germanium (Ge) is a semiconductor, which is sometimes used to make semiconductor devices. The density of Ge is 5.35 g/cm3 and its atomic weight is 72.59 g/mole. (A) Estimate how many Ge atoms are contained in a wafer 500 um thick and 5.80 cm in diameter. (B) If this wafer is uniformly doped (lightly alloyed) with 10 boron (B) atoms per cubic centimeter, what is the atomic fraction of B in this wafer? 17$

Germanium (Ge) is a semiconductor, which is sometimes used to make semiconductor devices. The density of Ge is 5.35 g/cm^3 and its atomic weight is 72.59 g/mole. (A) Estimate how many Ge atoms are contained in a wafer 500 mu m thick and 5.80 cm in diameter. (B) If this wafer is uniformly doped (lightly alloyed) with 10^17 boron (B) atoms per cubic centimeter, what is the atomic fraction of B in this wafer?

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