The on-going reliability test (ORT) is a hardware test process usually used in manufacturing to ensure quality of the products are still of the same specifications as the day it first went to production or general availability.The product currently in the manufacturing line are randomly picked everyday with a predefined percentage or numbers and then put in a burn-in chamber that matches the profile of the elevated temperature specs. The profile must be enough to bring the product to early maturity, almost similar to the intentions of running the highly accelerated stress test except that the product life is just accelerated enough but not to its predicted end-of-life.
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