V. Quintard et al., LASER PROBE MEASUREMENTS OF QUALITY EVOLUTION OF SOLDER JOINTS DURINGTHERMAL CYCLING AGING TESTS, Quality and reliability engineering international, 12(6), 1996, pp. 447-452
We present the results of a non-destructive measuring method allowing
us to characterize the evolution of solder joints during thermal cycli
ng ageing tests. The method uses a high resolution optical probe to de
tect selectively pure Joule and Peltier thermal responses of the solde
r joint subject to a given current pulse. The results show the Peltier
and Joule responses to be good indicators for the evaluation of the a
ge and the degradation of solder joints.