Advanced Organic Polymer for the Aggressive Scaling of Low-k Materials

被引:12
|
作者
Pantouvaki, Marianna [1 ]
Huffman, Craig [1 ]
Zhao, Larry [2 ]
Heylen, Nancy [1 ]
Ono, Yukiharu [3 ]
Nakajima, Michio [3 ]
Nakatani, Koji [3 ]
Beyer, Gerald P. [1 ]
Baklanov, Mikhail R. [1 ]
机构
[1] IMEC, B-3001 Louvain, Belgium
[2] IMEC, INTEL, B-3001 Louvain, Belgium
[3] Sumitomo Bakelite Co Ltd, Yokohama, Kanagawa 2450052, Japan
关键词
D O I
10.1143/JJAP.50.04DB01
中图分类号
O59 [应用物理学];
学科分类号
摘要
An advanced organic polymer material of k = 2.2 has been successfully integrated in Cu lines with dielectric spacing from 80 to 20 nm. Cu lines with both TaN/Ta barrier and no barrier were fabricated. Current-voltage (I-V) and time dependent dielectric breakdown (TDDB) measurements were performed to study the scalability of this material. In the case of TaN/Ta barrier, no TDDB degradation was observed at 100 degrees C as the dielectric spacing changed from 80 to 30 nm. In the case of no barrier, TDDB performance at 100 degrees C was better than that of SiO2 without a barrier. However, TDDB at 200 degrees C showed a clear degradation. In contrast, no such degradation was present when TaN/Ta barrier was used. (C) 2011 The Japan Society of Applied Physics
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页数:5
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