T. Oshima, K. Hinode, H. Yamaguchi, H. Aoki, K. Torii, T. Saito, K. Ishikawa, J. Noguchi, M. Fukui, T. Nakamura, S. Uno, K. Tsugane, J. Murata, K. Kikushima, H. Sekisaka, E. Murakami, K. Okuyama, T. Iwasaki
{"title":"铜互连中应力诱导空化的抑制","authors":"T. Oshima, K. Hinode, H. Yamaguchi, H. Aoki, K. Torii, T. Saito, K. Ishikawa, J. Noguchi, M. Fukui, T. Nakamura, S. Uno, K. Tsugane, J. Murata, K. Kikushima, H. Sekisaka, E. Murakami, K. Okuyama, T. Iwasaki","doi":"10.1109/IEDM.2002.1175948","DOIUrl":null,"url":null,"abstract":"Studied stress-induced voiding in Cu interconnects in the temperature range below 250/spl deg/C, and found two different voiding modes. One mode occurs inside a via having wide wire above it, and can be suppressed by optimizing the via shape and the via-cleaning process. The other mode occurs under a via having wide wire below it and can be suppressed by increasing the Cu grain size and improving the adhesion of the barrier metal with Cu.","PeriodicalId":74909,"journal":{"name":"Technical digest. International Electron Devices Meeting","volume":"56 1","pages":"757-760"},"PeriodicalIF":0.0000,"publicationDate":"2002-12-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"41","resultStr":"{\"title\":\"Suppression of stress-induced voiding in copper interconnects\",\"authors\":\"T. Oshima, K. Hinode, H. Yamaguchi, H. Aoki, K. Torii, T. Saito, K. Ishikawa, J. Noguchi, M. Fukui, T. Nakamura, S. Uno, K. Tsugane, J. Murata, K. Kikushima, H. Sekisaka, E. Murakami, K. Okuyama, T. Iwasaki\",\"doi\":\"10.1109/IEDM.2002.1175948\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"Studied stress-induced voiding in Cu interconnects in the temperature range below 250/spl deg/C, and found two different voiding modes. One mode occurs inside a via having wide wire above it, and can be suppressed by optimizing the via shape and the via-cleaning process. The other mode occurs under a via having wide wire below it and can be suppressed by increasing the Cu grain size and improving the adhesion of the barrier metal with Cu.\",\"PeriodicalId\":74909,\"journal\":{\"name\":\"Technical digest. International Electron Devices Meeting\",\"volume\":\"56 1\",\"pages\":\"757-760\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2002-12-08\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"41\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"Technical digest. International Electron Devices Meeting\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/IEDM.2002.1175948\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"Technical digest. International Electron Devices Meeting","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IEDM.2002.1175948","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Suppression of stress-induced voiding in copper interconnects
Studied stress-induced voiding in Cu interconnects in the temperature range below 250/spl deg/C, and found two different voiding modes. One mode occurs inside a via having wide wire above it, and can be suppressed by optimizing the via shape and the via-cleaning process. The other mode occurs under a via having wide wire below it and can be suppressed by increasing the Cu grain size and improving the adhesion of the barrier metal with Cu.
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