{"title":"Cu取向对Sn-2Ag-2.5Zn /Cu界面微观结构的影响","authors":"Penghui Xu, Fengtian Hu, A. Hu, Ming Li","doi":"10.1109/ICEPT.2015.7236700","DOIUrl":null,"url":null,"abstract":"The effects of Cu orientation on the microstructure and growth of IMCs in Sn-2Ag-2.5Zn /Cu solder joints were studied. After reflowing at 250 °C for 10 s, the continuous scallop-like IMCs Cu6Sn5 in Sn-2Ag-2.5Zn /polycrystalline Cu solder joint were more flat and thinner than that on (110), (111) oriented Cu substrates. The grain size of IMC on single crystal Cu substrates was larger than that of IMC on polycrystalline Cu. While during aging time, the growth rate of IMC on polycrystalline Cu substrates was slower, compared with that on (110), (111) oriented Cu substrates, and the thickness of IMC on (110), (111) oriented Cu substrates showed no visible differences, It was observed that the thickness of IMC was proportional to the square of the time in aging process.","PeriodicalId":415934,"journal":{"name":"2015 16th International Conference on Electronic Packaging Technology (ICEPT)","volume":"39 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2015-09-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Effects of Cu orientation on the microstructure of Sn-2Ag-2.5Zn /Cu interface\",\"authors\":\"Penghui Xu, Fengtian Hu, A. Hu, Ming Li\",\"doi\":\"10.1109/ICEPT.2015.7236700\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The effects of Cu orientation on the microstructure and growth of IMCs in Sn-2Ag-2.5Zn /Cu solder joints were studied. After reflowing at 250 °C for 10 s, the continuous scallop-like IMCs Cu6Sn5 in Sn-2Ag-2.5Zn /polycrystalline Cu solder joint were more flat and thinner than that on (110), (111) oriented Cu substrates. The grain size of IMC on single crystal Cu substrates was larger than that of IMC on polycrystalline Cu. While during aging time, the growth rate of IMC on polycrystalline Cu substrates was slower, compared with that on (110), (111) oriented Cu substrates, and the thickness of IMC on (110), (111) oriented Cu substrates showed no visible differences, It was observed that the thickness of IMC was proportional to the square of the time in aging process.\",\"PeriodicalId\":415934,\"journal\":{\"name\":\"2015 16th International Conference on Electronic Packaging Technology (ICEPT)\",\"volume\":\"39 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2015-09-03\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2015 16th International Conference on Electronic Packaging Technology (ICEPT)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICEPT.2015.7236700\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2015 16th International Conference on Electronic Packaging Technology (ICEPT)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICEPT.2015.7236700","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Effects of Cu orientation on the microstructure of Sn-2Ag-2.5Zn /Cu interface
The effects of Cu orientation on the microstructure and growth of IMCs in Sn-2Ag-2.5Zn /Cu solder joints were studied. After reflowing at 250 °C for 10 s, the continuous scallop-like IMCs Cu6Sn5 in Sn-2Ag-2.5Zn /polycrystalline Cu solder joint were more flat and thinner than that on (110), (111) oriented Cu substrates. The grain size of IMC on single crystal Cu substrates was larger than that of IMC on polycrystalline Cu. While during aging time, the growth rate of IMC on polycrystalline Cu substrates was slower, compared with that on (110), (111) oriented Cu substrates, and the thickness of IMC on (110), (111) oriented Cu substrates showed no visible differences, It was observed that the thickness of IMC was proportional to the square of the time in aging process.
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