Abstract
Highly accelerated life testing (HALT) is a critical method that combines thermal loadings and a series of vibration step stresses in testing the reliability of electronic products. HALT typically utilizes multiple hammers as the driving force of vibration excitations. In this study, we investigated an existing HALT system and the improved design of the hammer system. We also examined the responses of each table to a variety of effects, such as different combinations of hammers and variations in the impact force angles from the hammers to the table. The investigation begins with a theoretical analysis of the forces of impact exerted by the hammers on the table of the HALT system. Thereafter, ANSYS Workbench software is used to build the simulation model that will verify the accuracy of the theoretical results. Finally, the accelerations of the table in an actual HALT system are measured and analyzed for comparison with the foregoing results.
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