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A finite element model which contains one sixth of the IGBT module based on a real test chip of IGBT module is established to investigate the temperature and stress distribution of different shape bonding wire. The finite element (FE) analysis which coupled electro-thermal and thermal-mechanical are conducted using commercial software ABAQUS. The thermal performance and stress distribution of IGBT...
As the demand of power converter for higher power density is increasing, bonding wire failure of IGBT module becomes more severe. Accordingly, it is of great significance to investigate the reliability of bonding wire under operating condition for improving the reliability of IGBT module. In this paper, the finite element model of IGBT module was established, and a two-step indirect coupling electro-thermal-mechanical...
Current densities of 1.5ASD and additive concentrations of 15ml/L were used to electroplate the copper into TSV to fabricate the test samples. The samples were annealed at 425°C for 30 minutes in a vacuum furnace with the heating rate of 10°C /min. The annealed samples were thermal cycled with temperature range (25∼325°C), heating & cooling rate (10 °C/min), dwell time of 2 min at the peak and...
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