Which risk increases when electrons exceed the drift velocity within a semiconductor?

💡 Explanation

Thermal runaway occurs due to increased current density leading to enhanced Joule heating, if electron drift velocity is excessive. Impact ionization is magnified because of this, resulting in further electron-hole pair generation; therefore, runaway is the answer rather than merely scattering or piezoelectricity.

• Which mechanism causes increased catalytic activity when metal nanoparticles are deposited on a reducible oxide support?
• Which consequence arises when manufacturing LCD screens lacking polarization layers?
• Which net outcome inevitably occurs when a sealed cryogenic tank undergoes self-pressurization?
• Which conduction results when doping NaCl with magnesium?
• Which consequence results when catalytic converter overheating disrupts the chemical equilibrium?
• Which risk increases when optical feedback enters laser?