Which mechanism limits electron mobility in a silicon crystal?

💡 Explanation

Phonon scattering increases with temperature in silicon, thus the mechanism impeding electron drift is phonon scattering, because lattice vibrations disrupt the electron's path and reduce momentum transfer. Therefore, mobility decreases rather than increasing through other mechanisms.

• Which outcome occurs when rapid oxide growth on a silicon carbide MOSFET gate?
• Which outcome occurs when regenerative cycle steam turbine operates with degraded feedwater preheating system?
• Which outcome results when a neutron star's density increasingly curves spacetime?
• Which outcome occurs when a spacecraft engine's acceleration matches gravitational acceleration?
• Which risk increases within semiconductor devices using narrower channels?
• Which mechanism dictates semiconductor conductivity due to thermal excitation?