caa a22 4500 463228898 CHVBK 20180405153235.0 cr unu---uuuuu 170326e20070901xx s 000 0 eng 10.1007/s10853-007-1627-5 doi (NATIONALLICENCE)springer-10.1007/s10853-007-1627-5 Standardization of a shear test method for lead-free solder paste chip joints [Elektronische Daten] [Jai-Kyoung Choi, Jai-Hyun Park, Yong-Sik Ahn] The electronics industry is moving to replace Pb-based solder with Pb-free solder because of the growing environmental regulations governing the use of lead. Solder joints made from Pb-free solder paste do not yet have an evaluation method to classify its mechanical properties such as shear strength. In this study, we reflowed solder joints from Sn-3.0Ag-0.5Cu solder paste. To standardize the shear test method, we measured the shear strength of the solder joint of a 2012 ceramic chip at a shear rate of 3-60mm/min and a shear height of 10-380μm using different shaped shear jigs. We statistically analyzed the optimum number of shear tests by calculating the accumulative average value, standard deviation, and width of the confidence interval. The fracture surface was examined by scanning electron microscope and discussed in terms of the shear conditions. Springer Science+Business Media, LLC, 2007 Choi Jai-Kyoung Department of Materials Science & Engineering, Pukyong National University, 608-739, Busan, Korea aut Park Jai-Hyun Research Institute of Industrial Science & Technology, 790-600, Pohang, Korea aut Ahn Yong-Sik Department of Materials Science & Engineering, Pukyong National University, 608-739, Busan, Korea aut Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7451-7456 0022-2461 42:17<7451 2007 42 10853 https://doi.org/10.1007/s10853-007-1627-5 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s10853-007-1627-5 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Choi Jai-Kyoung Department of Materials Science & Engineering, Pukyong National University, 608-739, Busan, Korea aut NATIONALLICENCE 700 1- Park Jai-Hyun Research Institute of Industrial Science & Technology, 790-600, Pohang, Korea aut NATIONALLICENCE 700 1- Ahn Yong-Sik Department of Materials Science & Engineering, Pukyong National University, 608-739, Busan, Korea aut NATIONALLICENCE 773 0- Journal of Materials Science Kluwer Academic Publishers-Plenum Publishers; http://www.springer-ny.com 42/17(2007-09-01), 7451-7456 0022-2461 42:17<7451 2007 42 10853 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer