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Which outcome during semiconductor manufacturing increases when exceeding the solid solubility limit?

A)Formation of unwanted secondary phases
B)Enhanced dopant diffusion uniformity
C)Reduced crystal lattice strain
D)Increased band gap energy

💡 Explanation

Exceeding solid solubility leads to precipitation because atoms can no longer substitute host lattice atoms via the solid solution strengthening mechanism; therefore secondary phase formation arises, rather than increased doping, because the excess dopant forms its own distinct compound.

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