发明名称 Composition and method for cleaning semiconductor substrates comprising an alkyl diphosphonic acid
摘要 The compositions and methods herein relate to the method for the removal of residues and contaminants from metal or dielectric surfaces. Particularly, a composition and method of cleaning residues after chemical mechanical polishing of a copper or aluminum surface of the semiconductor substrates. A method of cleaning semiconductor substrates comprising contacting the substrates with a solution of water, and sufficient amount of alkyl diphosphonic acid comprising alkyl diphosphonic acid selected from the group of 1 hydroxyethane 1,1 diphosphonic acid, methylene disphosphonic acid, hydroxymethylene diphosphonic acid, dichloromethylene disphosphonic acid, hydroxycyclohexylmethylene disphosphonic acid, 1-hydroxy-3-aminopropane 1,1 diphosphonic acid, 1-hydroxy-4-aminobutane 1,1 diphosphonic acid mixed with dodecylbenzenesulfonic acid, xylenesulfonic acid, toluenesulfonic acid, phosphonoformic acid, sulfamic acid, 2-amino ethane sulfonic acid, or fluoroboric acid or an organic carboxylic acid and pH is adjusted to from greater than 6 to about 10 with a metal ion free base, and a surfactant.
申请公布号 US8148310(B2) 申请公布日期 2012.04.03
申请号 US20100888569 申请日期 2010.09.23
申请人 LEE WAI MUN 发明人 LEE WAI MUN
分类号 C11D7/36 主分类号 C11D7/36
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