{"title":"Interconnection with copper pillar bumps : Process and applications","authors":"C. Lee","doi":"10.1109/IITC.2009.5090391","DOIUrl":null,"url":null,"abstract":"Flipchip technologies have been evolved to grab the major portion of the high and medium performance markets, where the bump interconnections are required. Bumps can be diverse in their contents, that is, binary, ternary, etc.. The most popular alloy is SnPb (eutectic), while the environmental importance pushes the market to adapt the green solution where SnAg or SnCu can be one of the choice. Considering the electrical performance including electro-migration effect and simplicity of the process, Cu bumps is chosen to be an alternative. In this presentation, the Cu pillar bump will be introduced embracing the fine pitch (less than 50 um) process and applications.","PeriodicalId":301012,"journal":{"name":"2009 IEEE International Interconnect Technology Conference","volume":"318 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2009-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"18","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2009 IEEE International Interconnect Technology Conference","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IITC.2009.5090391","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 18
Abstract
Flipchip technologies have been evolved to grab the major portion of the high and medium performance markets, where the bump interconnections are required. Bumps can be diverse in their contents, that is, binary, ternary, etc.. The most popular alloy is SnPb (eutectic), while the environmental importance pushes the market to adapt the green solution where SnAg or SnCu can be one of the choice. Considering the electrical performance including electro-migration effect and simplicity of the process, Cu bumps is chosen to be an alternative. In this presentation, the Cu pillar bump will be introduced embracing the fine pitch (less than 50 um) process and applications.
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