Abstract
Despite extensive investigation of electromigration in aluminium interconnections, the available data are sufficient to apply to tracks carrying pulsed currents in operational conditions. A theory of electromigration that considers the growth of microscopic voids in a track has been developed for the case of electromigration under pulsed-current conditions. The resulting model has been confirmed by a limited number of experimental results. Failure of tracks stressed with a.c. was observed to be due to mechanisms other than electromigration.
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