Shihua Yang, Chunqing Wang, Yanhong Tian, P. Lin, Le Liang
{"title":"Limited β-Sn grain number of miniaturized Sn-Ag-Cu solder joints","authors":"Shihua Yang, Chunqing Wang, Yanhong Tian, P. Lin, Le Liang","doi":"10.1109/ICEPT.2008.4607056","DOIUrl":null,"url":null,"abstract":"As-reflowed Sn-Ag-Cu solder joints in various diameters were found to contain only several beta-Sn crystal grains. With the solder joints increasingly miniaturized, there is no obvious change in the grain number in a solder joint. The aged Sn-Ag-Cu solder joints are composed of very limited number of beta-Sn crystal grains as well. It appears that the solder joint size and thermal aging have less influence on the growth of beta-Sn grains.","PeriodicalId":6324,"journal":{"name":"2008 International Conference on Electronic Packaging Technology & High Density Packaging","volume":"131 1","pages":"1-3"},"PeriodicalIF":0.0000,"publicationDate":"2008-07-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"1","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2008 International Conference on Electronic Packaging Technology & High Density Packaging","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICEPT.2008.4607056","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 1
Abstract
As-reflowed Sn-Ag-Cu solder joints in various diameters were found to contain only several beta-Sn crystal grains. With the solder joints increasingly miniaturized, there is no obvious change in the grain number in a solder joint. The aged Sn-Ag-Cu solder joints are composed of very limited number of beta-Sn crystal grains as well. It appears that the solder joint size and thermal aging have less influence on the growth of beta-Sn grains.