演示TFHM可扩展到32 nm节点BEOL互连和可扩展到ELK k≤2.3介电材料

K. Hamioud, V. Arnal, A. Farcy, V. Jousseaume, A. Zenasni, O. Gourhant, B. Icard, J. Pradelles, S. Manakli, P. Brun, G. Imbert, C. Jayet, M. Assous, S. Maitrejean, M. Vilmay, D. Galpin, C. Monget, J. Guillan, S. Chhun, E. Richard, D. Barbier, M. Haond
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引用次数: 0

摘要

采用沟槽优先硬掩模(TFHM)结构实现了32nm节点BEOL验证器。双大马士革工艺是用ELK介电介质进行的,在线和孔水平,并与适应的金属化,以满足ITRS规范。为了证明其对ELK介电材料的可扩展性,在TFHM结构中研究了ELK k=2.3和k=2.2。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Demonstration of TFHM scalability to 32 nm node BEOL interconnect and extendibility to ELK k ≤ 2.3 dielectric material
A 32 nm node BEOL demonstrator using Trench First Hard Mask (TFHM) architecture is realized. The dual damascene process is performed with ELK dielectric at line and via level and with an adapted metallization in order to meet ITRS specifications. ELK k=2.3 & k=2.2 are studied in a TFHM architecture in order to prove its extendibility to ELK dielectric materials.
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