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← ScienceWhich risk increases when a semiconductor device's band gaps shrink under rising temperature?
A)Increased base-collector capacitance
B)Enhanced electron-phonon coupling
C)Greater thermal runaway susceptibility✓
D)Decreased saturation velocity threshold
💡 Explanation
Greater thermal runaway susceptibility occurs because decreased band gap allows more electrons to jump to the conduction band, increasing conductivity and heat generation further, thereby leading towards thermal runaway, rather than stabilized capacitance at high temperatures.
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