M. H. van der Veen, Y. Barbarin, B. Vereecke, Masahito Sugiura, Y. Kashiwagi, D. Cott, C. Huyghebaert, Z. Tokei
{"title":"Electrical improvement of CNT contacts with Cu damascene top metallization","authors":"M. H. van der Veen, Y. Barbarin, B. Vereecke, Masahito Sugiura, Y. Kashiwagi, D. Cott, C. Huyghebaert, Z. Tokei","doi":"10.1109/IITC.2013.6615601","DOIUrl":null,"url":null,"abstract":"We discuss the improvement in the electrical characterization and the performance of 150 nm diameter contacts filled with carbon nanotubes (CNT) and a Cu damascene top metal on 200mm wafers. The excellent agreement between the yield curves for the parallel and single contacts shows that a reliable electrical characterization is obtained. We demonstrate that integration changes improved the resistivity of the CNT contact significantly by reducing it from 11.8·10<sup>3</sup> μΩ·cm down to 5.1·10<sup>3</sup> μΩ·cm. Finally, a length scaling of the CNT contacts was used to find the individual contributors to the lowering of the single CNT contact resistance.","PeriodicalId":6377,"journal":{"name":"2013 IEEE International Interconnect Technology Conference - IITC","volume":"1 1","pages":"1-3"},"PeriodicalIF":0.0000,"publicationDate":"2013-06-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"8","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"2013 IEEE International Interconnect Technology Conference - IITC","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/IITC.2013.6615601","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 8
Abstract
We discuss the improvement in the electrical characterization and the performance of 150 nm diameter contacts filled with carbon nanotubes (CNT) and a Cu damascene top metal on 200mm wafers. The excellent agreement between the yield curves for the parallel and single contacts shows that a reliable electrical characterization is obtained. We demonstrate that integration changes improved the resistivity of the CNT contact significantly by reducing it from 11.8·103 μΩ·cm down to 5.1·103 μΩ·cm. Finally, a length scaling of the CNT contacts was used to find the individual contributors to the lowering of the single CNT contact resistance.