Indium Corporation recently released RMA-155 Pb-Free Solder Paste. RMA-155 is the best solder paste for customers who are required to use RMA materials, but who need the performance benefits of modern Pb-free solder paste technology. 

RMA-155 was designed for balanced performance, making it ideal for high-complexity boards with a variety of component sizes, as well as simple assemblies. Compatible with both SnPb and SAC alloys, RMA-155 delivers consistent transfer efficiencies, excellent response-to-pause, and a strong oxidation barrier, even for long and hot profiles. It is halogen-free, resists graping on small components and tiny deposits, prevents head-in-pillow defects, and minimizes voiding for BGAs and large thermal planes (QFNs).

RMA-155 conforms to the RMA classification for QQ-S-571F and offers proven performance similar to the well-received Indium8.9 Series solder pastes. Indium Corporation’s full suite of compatible RMA materials includes TACFlux RMS-155, WF-2212 wave flux, FP-2212 flux pens, and CW807 series flux-cored wires in many alloys. 

RMA-155 is best suited for military and aerospace PCB assemblies, especially those still required to use RMA-classified fluxes. This solder paste also enables the transition to Pb-free because the flux is compatible with both Pb-containing and Pb-free alloys.

For more information about RMA-155 visit www.indium.com/flux-and-epoxy. 

Indium Corporation is a premier materials manufacturer and supplier to the global electronics, semiconductor, solar, thin-film and thermal management markets. Products include solders, preforms, and fluxes; brazes; sputtering targets; indium, gallium, and germanium metals and inorganic compounds; and NanoFoil^®. Founded in 1934, Indium has global technical support and factories located in China, Singapore, South Korea, the United Kingdom, and the USA.

For more information about Indium Corporation, visit www.indium.com or email abrown@indium.com.