Analysis of Flex PCB Failures in Hearing Aid Chargers

Abstract

Abstract—This research aims to analyze and identify the main cause of the disconnection of the line on the flex PCB which resulted in the LED on the hearing aids charger not working. This problem has an impact on the disruption of the main function of the device and reduces the level of costumer confidence in product quality. To understand the root of the problem, this research uses the Fishbone Diagram and Failure Mode and Effect Analysis (FMEA) methods as analytical tools. The research stages include identification of potential causes, failure risk analysis, and improvement planning through the preparation of effective Work Instruction (WI). This research is expected to provide strategic steps in reducing the reject rate in the production prosses and support the improvement of product quality at PT. XYZ.