发明授权
- 专利标题: Methods for fabrication of an air gap-containing interconnect structure
- 专利标题(中): 用于制造含气隙的互连结构的方法
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申请号: US12721032申请日: 2010-03-10
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公开(公告)号: US08642252B2公开(公告)日: 2014-02-04
- 发明人: Lawrence A. Clevenger , Maxime Darnon , Satyanarayana V. Nitta , Anthony D. Lisi , Qinghuang Lin
- 申请人: Lawrence A. Clevenger , Maxime Darnon , Satyanarayana V. Nitta , Anthony D. Lisi , Qinghuang Lin
- 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
- 代理机构: Scully, Scott, Murphy & Presser, P.C.
- 代理商 Louis J. Percello, Esq.
- 主分类号: H01L21/764
- IPC分类号: H01L21/764
摘要:
Methods for producing air gap-containing metal-insulator interconnect structures for VLSI and ULSI devices using a photo-patternable low k material as well as the air gap-containing interconnect structure that is formed are disclosed. More particularly, the methods described herein provide interconnect structures built in a photo-patternable low k material in which air gaps are defined by photolithography in the photo-patternable low k material. In the methods of the present invention, no etch step is required to form the air gaps. Since no etch step is required in forming the air gaps within the photo-patternable low k material, the methods disclosed in this invention provide highly reliable interconnect structures.
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