发明申请
US20100207276A1 SPIN-ON ANTIREFLECTIVE COATING FOR INTEGRATION OF PATTERNABLE DIELECTRIC MATERIALS AND INTERCONNECT STRUCTURES
有权
用于整合电介质材料和互连结构的旋转抗反射涂层(SPIN-ON ANTIREFLECTIVE COATING FOR INTEGRATION OF PATTERNABLE DIELECTRIC MATERIALS AND INTERCONNECT STRUCTURES
- 专利标题: SPIN-ON ANTIREFLECTIVE COATING FOR INTEGRATION OF PATTERNABLE DIELECTRIC MATERIALS AND INTERCONNECT STRUCTURES
- 专利标题(中): 用于整合电介质材料和互连结构的旋转抗反射涂层(SPIN-ON ANTIREFLECTIVE COATING FOR INTEGRATION OF PATTERNABLE DIELECTRIC MATERIALS AND INTERCONNECT STRUCTURES
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申请号: US12772451申请日: 2010-05-03
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公开(公告)号: US20100207276A1公开(公告)日: 2010-08-19
- 发明人: Robert D. Allen , Phillip J. Brock , Blake W. Davis , Wu-Song S. Huang , Qinghuang Lin , Alshakim Nelson , Sampath Purushothaman , Ratnam Sooriyakumaran
- 申请人: Robert D. Allen , Phillip J. Brock , Blake W. Davis , Wu-Song S. Huang , Qinghuang Lin , Alshakim Nelson , Sampath Purushothaman , Ratnam Sooriyakumaran
- 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: H01L23/522
- IPC分类号: H01L23/522 ; C09D5/00
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. The inorganic ARC is liquid deposited and comprises a polymer that has at least one monomer unit comprising the formula M-R1 wherein M is at least one of Si, Ge, B, Sn, Fe, Ta, Ti, Ni, Hf and La and R1 is a chromophore. At least one interconnect pattern is formed within the at least one patternable low-k material and thereafter the at least one patternable low-k material is cured. The inventive method can be used to form dual-damascene interconnect structures as well as single-damascene interconnect structures.
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