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4 The PCB Magazine • February 2015 12 22 OSP and Selective Electroless Nickel for Mixed-Metal Finish PWBs and BGA Substrates by Michael Carano HASLEN: A New High-Reliability Surface Finish for PCBs by Prof. Karl Ryder, Dr. Andrew Ballantyne, Dennis Price and Tom Perrett IPC Plating Sub-committee 4-14: Surface Finish Specification by George Milad The Future of Nickel in Nickel/ Palladium/Gold Final Finishes by Rick Nichols february featured content 34 42 Industry experts from OMG Electronic Chemicals, Uyemura, Atotech and the University of Leicester are on hand this month to dive deep into surface fin- ishes, from OSPs for mixed-metal finishes to cutting- edge high-reliability surface finishes. Surface Finishes