Thermal cycling analysis of high temperature die-attach materials

摘要

This work aims at the experimental thermo-mechanical evaluation of different die-attach materials using test vehicles representing the final packaging assemblies. The experiments are based on a harsh thermal cycling system and analysis tools for evaluating the final die-attach integrity. In this paper, we present a finite elements simulation analysis of the test vehicle, the design of the harsh thermal cycling system (-80 to 400 ℃) and the first results obtained with AuGe and PbSnAg as die-attach alloys.