Sung-Hyuk Kim, Jong-jin Park, Jae-Myeong Kim, S. Yoo, Young-Bae Park
{"title":"Comparisons of the electrical and mechanical reliabilities between Sn-3.5Ag and Sn-0.7Cu Pb-free solder bumps","authors":"Sung-Hyuk Kim, Jong-jin Park, Jae-Myeong Kim, S. Yoo, Young-Bae Park","doi":"10.1109/EPTC.2012.6507176","DOIUrl":null,"url":null,"abstract":"The effects of surface finishes on the in situ interfacial reaction characteristics on both ball grid array (BGA) typed Sn-3.5Ag and Sn-0.7Cu lead-free solder bumps were investigated under annealing and electromigration (EM) test conditions of 135 °C to 170°C with 5.0 × 103 A/cm2. The failure mechanisms were explored in detail via in-situ EM tests. For the shear test, the shear force of both Sn-3.5Ag and Sn-0.7Cu solder joints increased and the shear energy decreased with increasing shear speed for the high speed of 1000 mm/s.","PeriodicalId":431312,"journal":{"name":"2012 IEEE 14th Electronics Packaging Technology Conference (EPTC)","volume":"124 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 IEEE 14th Electronics Packaging Technology Conference (EPTC)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/EPTC.2012.6507176","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 0
Abstract
The effects of surface finishes on the in situ interfacial reaction characteristics on both ball grid array (BGA) typed Sn-3.5Ag and Sn-0.7Cu lead-free solder bumps were investigated under annealing and electromigration (EM) test conditions of 135 °C to 170°C with 5.0 × 103 A/cm2. The failure mechanisms were explored in detail via in-situ EM tests. For the shear test, the shear force of both Sn-3.5Ag and Sn-0.7Cu solder joints increased and the shear energy decreased with increasing shear speed for the high speed of 1000 mm/s.