Understanding ROSE Testing: Measure and Control Ionic Contamination
Dr. Adam will discuss the basics of ROSE (Resistivity of Solvent Extract) testing and explain how it helps control cleaning processes for circuit boards. This fast, non-destructive technique measures ionic contamination by analyzing changes in solvent conductivity, and is ideal for high-reliability applications.
Dr. Adam will demonstrate how ROSE testing provides an overall cleanliness metric using sodium chloride equivalents. While this method is simple and effective for monitoring well-controlled processes, it has limitations. Dr. Adam will explain ROSE drawbacks, such as its inability to pinpoint localized contamination or identify specific ions, and how external factors like solvent handling can impact results. He’ll also discuss new tools that address these limitations.