功率半导体封装键合线脱落与焊料疲劳的在役诊断

Wire-bond lift-off and Solder fatigue are degradation mechanisms that dominate the lifetime of power semiconductor packages. Although their lifetime is commonly estimated at the design stage, based on mission profiles and physics-of-failure models, there are many uncertainties associated with such lifetime estimates, emerging, e.g., from model calibration errors, manufacturing tolerances, etc. The...