Effect of organic electronic insulation material on the sustained voltage of diode at high temperature

Organic silicon paint adding polyester (SPP) is chosen as the surface protection material to study the effects of solidifying technology on the insulation film's resistivity and the sustained voltage of a diode protected by SPP at high temperature. It is found that the solidifying condition changes the resistivity of the protection film and the sustained voltage of diodes at high temperature. When a suitable solidifying condition is chosen, the sustained voltage vs. temperature characteristics of diodes are improved. The characteristics are better when diodes are solidified in the condition in which the resistivity of the organic protection film is higher.