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ROSE Testing for Printed Circuit Board (PCBs) to Ensure Ionic Cleanliness

Created in response to space and military system failures in the 1960s, the ROSE test detects ionic residue from rosin-based fluxes. Ionic contaminants are a result of various PCB and electronics production processes, causing chemical reactions that result in performance issues and even failure in some cases. To prevent critical performance issues, ROSE testing sets the industry standard for measuring and tracking ionic cleanliness.

Plasma Ruggedized Solutions is an experienced PCB manufacturer and conformal coating provider that offers fast, reliable, and environmentally friendly ROSE testing. We adhere to strict industry standards to ensure that your PCBs and assemblies are clean and will perform without fail. Contact us to discuss your ROSE test requirements.

The ROSE Testing Process for PCBs and Assemblies

ROSE testing begins with a bare circuit board or assembly, which will be the sample for a given test group. A solution of 75% isopropyl alcohol (IPA) and 25% purified water or an extraction solvent in a known volume is measured for resistivity. Then, the sample is sprayed with or submerged into the solution. Ensure appropriate processing guidelines are followed for test duration, as some contaminants require a longer processing time to dissolve.

Once the solution has dissolved the salts and other ionic contaminants on the sample, the resistivity of the solution is measured again and reported in sodium chloride (NaCl) equivalent. The difference between initial and final resistivity tracks the amount of ions removed from the board. ROSE test results will indicate the soldering success of a board and whether it will perform reliably in operations.

Applications of ROSE Testing for PCBs and Assemblies

Accurately detecting the presence of ionic contaminants on PCBs and assemblies, ROSE testing is used to ensure the performance of critical electronics and other products across various industries. Some industries where the ROSE test can be used to assess the performance and reliability of an assembly include:

Choose Plasma Ruggedized for PCB Testing and Quality Assurance

At Plasma Ruggedized Solutions, we deliver the highest level of cleanliness testing for your PCBs. With over 20 years of experience, our team is committed to total customer satisfaction by ensuring the technical precision and quality of our products and services. We conduct our ROSE testing services in compliance with stringent industry standards, including MIL-C-28809, IPC 600, and IPC 610. Offering fast turnaround times, most tests are completed within a single day using environmentally friendly testing processes.

Contact Us for ROSE Testing Services to Ensure PCB Cleanliness

Plasma Ruggedized Solutions is an industry leader in engineering solutions. As a trusted conformal coating and potting/encapsulation provider, we additionally offer a range of testing services to ensure the performance and reliability of your PCBs, components, and assemblies. Discover high-quality engineering, production, and protection capabilities today. Contact Plasma Ruggedized Solutions to discuss the needs of your projects or request a quote to begin.