Depletion Region shrinks with increased temperature

[jaxper]

Hi,

Quick question. In a PN junction, the depletion region will shrink with an increase in temperature. Why is that? Is the Fermi energy of the p and n semiconductors a function of temperature?

Thanks!

Jax

 

[Mark Calley]

junction capacitance with inc. temp

Hello,
Based on mmwave's answer that PN junction depletion width decreases with temperature (I assume junction is reverse biased), then will junction capacitance therefore increase with temperature? If so, is there any appreciable change in capacitance with temperature?
Thx