Burn in is a common procedure to improve the quality of products after they havebeen produced, but it is also costly. This paper presents two stage burn-in policy for the assembly of a complex electronic product. A product is assembled by two different items which have a bathtub-shaped failure rate. Item I is performed burn in time b_(1). The successful Item I is then assembled with item II, and then we perform the second stage burn in for the product, the second stage burn in time equal to tau- b_(1). There are two types of failure possible for the product in the second stage burn in. One is the type I failure (item I failure), which can be removed by a complete repair, and the other is a type II failure (item II failure), which can be removed by a minimal repair. In this article, we present a two stage burn-in policy for the assembled product.
展开▼
