Development of methods for identifying factors affecting the electronic tools reliability in the design

Abstract

In order to assess the level of electronic means reliability, it is necessary to have a methodology for analyzing the results of calculating its reliability indicators, such as the probability of failure-free operation or mean time between failures, which allows to evaluate which of the parameters most strongly affects the final value of the failure rate of electronic component particular type. As a result of analyzing the reliability of electronic mean all-levels components, the engineer should obtain the values of the reliability indicators, the boundary values of the controlled parameters, and also give recommendations on certain changes necessary to improve the reliability, thereby implementing the reliability management methodology. This technique, in contrast to the already known ones, will allow analyzing the calculated values of the indicators and using the relative sensitivity function to determine the contribution made by specific parameters: temperature, element ratings, their operating voltage, current, power, tolerance level, while previously contribution was estimated by the numerical value of a separate correction factor. Application of the developed methodology for analyzing the results of calculating the reliability of electronic means allows to specify the recommendations for changing parameters in order to improve the reliability of the elements that make up the product in question.