Discussion on Temperature Variation During Burn-in Testing

This paper introduces the chamber temperature distribution of burn-in oven affected by the varying of burn-in boards' position and the fans' rev, etc.. The rapid temperature changes in oven affects the normal burn-in seriously and form the over-stress condition, seriously, it leads to circuit malfunction. We monitored and analyzed the factors that affect the chamber temperature distribution of oven in tests, and found out the main factors and regularity that affect the field temperature distribution of burn-in oven, it can effectively prevent over-temperature failure of aging circuit.