Statistical analysis of corrosion failures in hearing aid devices from tropical regions

Corrosion reliability of hearing aid (HA) devices is a critical issue due to their exposure harsh climatic conditions like high humidity and temperature, along with the combination level salt contamination from human sweat environmental pollutants. Statistical analysis corrosion failure data can provide better understanding sequence cause, which important as multiple parameter effects on complex device consisting many components. In this study, root cause failed used in tropical regions was performed using scanning electron microscopy (SEM) energy dispersive spectroscopy (EDS). Analysis for mechanisms, while statistical order elucidate degradation rate probability. Potassium hydroxide (KOH) electrolyte leakage faulty Zn-air batteries (ZABs) were prominent causes The failures found accelerate during summer season an increase perspiration release KOH batteries.