发明申请
- 专利标题: PATTERNABLE DIELECTRIC FILM STRUCTURE WITH IMPROVED LITHOGRAPHY AND METHOD OF FABRICATING SAME
- 专利标题(中): 具有改进的光刻的方形电介质膜结构及其制造方法
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申请号: US13219144申请日: 2011-08-26
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公开(公告)号: US20110312177A1公开(公告)日: 2011-12-22
- 发明人: Qinghuang Lin , Deborah A. Neumayer
- 申请人: Qinghuang Lin , Deborah A. Neumayer
- 申请人地址: US NY Armonk
- 专利权人: International Business Machines Corporation
- 当前专利权人: International Business Machines Corporation
- 当前专利权人地址: US NY Armonk
- 主分类号: H01L21/768
- IPC分类号: H01L21/768
摘要:
The present invention provides a method of fabricating an interconnect structure in which a patternable low-k material replaces the need for utilizing a separate photoresist and a dielectric material. Specifically, this invention relates to a simplified method of fabricating single-damascene and dual-damascene low-k interconnect structures with at least one patternable low-k dielectric and at least one inorganic antireflective coating. In general terms, a method is provided that includes providing at least one patternable low-k material on a surface of an inorganic antireflective coating that is located atop a substrate, said inorganic antireflective coating is vapor deposited and comprises atoms of M, C and H wherein M is at least one of Si, Ge, B, Sn, Fe, Ta, Ti, Ni, Hf and La; forming at least one interconnect pattern within the at least one patternable low-k material; and curing the at least one patternable low-k material. The inventive method can be used to form dual-damascene interconnect structures as well as single-damascene interconnect structures.
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