Significance of strain gauge test for evaluating the quality of LGA joints using statistical analysis

The article describes the research of the strength of solders under the influence of vibrational forces joints with LGA assembly. The influence of these forces was examined in three directions and specifically in the place of soldering of the LGA elements. The measurement of the strain gage of generated mechanical stress was performed with a modern smart metering system. Statistical methods were used to analyze the estimation of the power limits for correct product validation. The best conclusions are made regarding the assessment of the strength of the LGA joint and the recommendations for choosing one of the many offered options.