Live Quiz Arena
🎁 1 Free Round Daily
⚡ Enter ArenaQuestion
← ScienceWhich risk during integrated circuit fabrication increases when deposited polysilicon has high crystalline lattice defect density?
A)Increased electron mobility degradation over time
B)Enhanced dopant diffusion along grain boundaries✓
C)Reduced CMOS transistor threshold voltage mismatch
D)Elevated resistance of metal interconnect layers
💡 Explanation
Enhanced dopant profile diffusion increases primarily because of the grain boundary diffusion mechanism. High vacancy concentration results in more paths for dopant atoms to move, therefore enhanced diffusion rather than reduced mobility or increased transistor mismatch, which relate more to trapping.
🏆 Up to £1,000 monthly prize pool
Ready for the live challenge? Join the next global round now.
*Terms apply. Skill-based competition.
Related Questions
Browse Science →- Which outcome occurs when cryogenic liquid flows past a pump impeller exhibiting surface roughness?
- Which mechanism causes slowed catalytic conversion when a packed bed reactor experiences channeling?
- Which mechanism delays stable flow establishment in high-viscosity fluids?
- Which outcome undermines secure quantum key distribution when atmospheric turbulence affects entangled photons?
- Which consequence results when barium-141 undergoes beta-minus decay?
- Which outcome results when the assumption of inviscid flow is applied too liberally in computational fluid dynamics modeling of an aircraft wing?
