Plasma damage and repair of porous low-k carbon-doped oxide films

被引:0
|
作者
Yoo, Hui Jae [1 ]
Bielefeld, Jeffery D. [1 ]
Balakrishnan, Sridhar [1 ]
Boyanov, Boyan [1 ]
Clendenning, Scott B. [1 ]
Kloster, Grant M. [1 ]
Paluda, Patrick M. [1 ]
RamachandraRao, Vijayakumar S. [1 ]
Suri, Satyarth [1 ]
Younkin, Todd R. [1 ]
机构
[1] Intel Corp, Components Res, Hillsboro, OR 97124 USA
关键词
D O I
暂无
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Porous carbon-doped oxide (p-SiCOH) films with ultra-low dielectric constants (k <= 2.5) are being evaluated as a means for reducing RC delay in the back-end-of-the-line. However, there have been significant problems in the integration of porous inter-layer dielectrics (ILDs) due to in-line degradation of both mechanical and electrical film properties. This paper discusses which integrated process steps cause the greatest dielectric damage, and methods used for damage reduction and repair. End-of-line measurements showing virtually no k degradation are presented.
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收藏
页码:705 / 709
页数:5
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