BEST soldering geeks enable electronics companies to be more effective through professional instruction, tools and taking secondary assembly projects off your plate
General
Process BGA
Handling StencilQuik™
Method EZReball™
Method High Volume
Method Dry
Packaging Ceramic
Package Reballing Challenges
Optional
Services
Popcorned BGA
Warped BGA
An ion chromatograph (IC) is the most common tool for precision testing of device cleanliness. This method can quantify and identify specific ionic species that are present on an electronic component or board. The most common test method followed is the IPC TM-650 2.3.28. The device is placed into an ionically-clean bag (e.g. Kapak), and is immersed in an extract solution of 75% isopropyl alcohol (IPA) to 25% de-ionized water. It is important to be sure that the sampling procedures do not introduce any ionic contaminates. The PCB is extracted in the solution for one hour at 80 degrees centigrade, the resulting extract is then injected into the ion chromatograph. The IC then separates and detects each individual ion for which it was calibrated. Click here to see an Ionic Cleanliness testing report (PDF).