MOVES-a method for monitoring and verifying the reliability screening

Screening is intended to improve the lot reliability by removing the "weak" components. Till now, only the failed items were withdrawn. In this paper, an original method for identifying the components with low reliability by taking into account the electrical parameter drift is presented. The method, called MOVES, is effective in removing the components surviving after the screening program, but susceptible to fail in a near future (early failures). MOVES contains five procedures, namely VERDECT, LODRIFT, DISCRIM, POSE and INDRIFT. These procedures are detailed and used for some case studies.