Monthly Archives: July 2025


Jul03
[Case Study] Troubleshooting a Customer Complaint – Keypad Malfunction Caused by Oil & Powder Contamination on the PCB

post on July 3, 2025

This article shares a real case from Workingbear’s past experience dealing with an urgent customer complaint. One day, Workingbear was suddenly assigned to fly to a factory in China to “hunt for oil.” My manager even warned, “If you don’t … Continue reading →

Case study, EDX/EDS/SEM/IMC/FTIR, Keypad, Process, Quality     WorkingBear    Views (2,741)     comment (0)
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