电视机用塑封功率管(包括行输出管和电源调整管)是全塑电视机中的关键器件之一。它们的质量直接影响着整机的可靠性。因此,对于如何解决它们的早期失效的筛选工艺,人们给予了极大的观注。曾有不少人提出各种筛选办法(如准动态电老化筛选)来进行探索和尝试。 应该指出,除了改进制管工艺外,选择合理的筛选工艺对提高产品的可靠性确实也是行之有效的。显然,因为工艺筛选的目的,不仅在于诱发早期失效的产品,使之变化或损坏,而且还在于使产品经受一次热电应力的老化, TV plastic power tube (including the line output tube and power adjustment tube) is a plastic TV in one of the key components. Their quality directly affects the reliability of the whole machine. Therefore, great attention has been given to the screening process of how to deal with their early failure. Many people have put forward various screening methods (such as quasi-dynamic electrical aging screening) to explore and try. It should be pointed out that in addition to improving the pipe making process, it is indeed effective to select a reasonable screening process to improve the reliability of the product. Obviously, because the purpose of the process screening is not only to induce the early failure of the product to make it change or damage, but also to make the product undergo a thermoelectric stress aging,