发明授权
US08431516B2 Composition and method for cleaning semiconductor substrates comprising an alkyl diphosphonic acid
有权
用于清洁包含烷基二膦酸的半导体衬底的组合物和方法
- 专利标题: Composition and method for cleaning semiconductor substrates comprising an alkyl diphosphonic acid
- 专利标题(中): 用于清洁包含烷基二膦酸的半导体衬底的组合物和方法
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申请号: US13358543申请日: 2012-01-26
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公开(公告)号: US08431516B2公开(公告)日: 2013-04-30
- 发明人: Wai Mun Lee
- 申请人: Wai Mun Lee
- 主分类号: C11D7/36
- IPC分类号: C11D7/36
摘要:
The compositions and methods for the removal of residues and contaminants from metal or dielectric surfaces comprises at least one alkyl diphosphonic acid, at least one second acidic substance at a mole ratio of about 1:1 to about 10:1 in water, and pH is adjusted to from about 6 to about 10 with a metal ion free base, and a surfactant. Particularly, a composition and method of cleaning residues after chemical mechanical polishing of a copper or aluminum surface of the semiconductor substrates.
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