Baseline for a Nordtest Method. Reliability Stress Screening of Components. AGuide for Component Users. Nordtest Project 1034-92

摘要

A method for reliability stress screening (RSS) of components has been developedand is proposed to form a baseline for a Nordtest-method. Before issuance as a Nordtest-method it is proposed to supplement this report regarding possible failure modes and to make some editorial changes. The development work has been done in cooperation between the Swedish National Testing and Research Institute (SP) and Elektronikcentralen (EC) and was financed by Nordtest. The method makes use of methods described in IEC standard 1163. It is complementary to Nordtest-method NT ELEC 018 which defines a method for RSS of printed wiring assemblies. The purpose of the method is to give guidance to the component user and equipment manufacturer for the specification and the performance of screening for different cases. Five cases based on the users' different aims for the screening are defined in the method. Examples of the design of a screening program are given for 4 different component generic families. These are chosen as being the component families with the highest rate of early failures as defined by a questionnaire performed during the work with the Nordtest-method NT ELEC 018.