Verifying PCBA Cleanliness with ION CHROMATOGRAPHY

摘要

Cleanliness of printed circuit board assemblies is a critical quality output of any electronics manufacturing facility. If a PCBA is not cleaned sufficiently, the substances remaining may grow dendrites, which can lead to product failure. One effective tool to verify PCBA cleanliness is ion chromatography. Ion chromatography is a technique to analyze a liquid sample. It tests and determines ionic contamination, identifies which ions are present, and measures overall cleanliness of PCBAs and components. The goals of using IC are to assess product cleanliness, assembly cleaning equipment capability and the overall cleaning process.