  We investigate a universal behavior of thermodynamics and evaporation process
for the regular black holes. We newly observe an important point where the
temperature is maximum, the heat capacity is changed from negative infinity to
positive infinity, and the free energy is minimum. Furthermore, this point
separates the evaporation process into the early stage with negative heat
capacity and the late stage with positive heat capacity. The latter represents
the quantum cooling evaporation process. As a result, the whole evaporation
process could be regarded as the inverse Hawking-Page phase transition.
