The hazard rate increased and the reliability degenerated quickly when the stress is bigger than the strength. 当应力大于强度的机率变大，失效率变会增大，可靠度退化的速度就会变快。
Some test and field failure data which published by research papers have been taken into the new model to prove its creditability. 并根据针对性试验数据进行塑封器件工作失效率模型中各修正因子和修正量的赋值。
