Invention Grant
US08148310B2 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
- Patent Title: Composition and method for cleaning semiconductor substrates comprising an alkyl diphosphonic acid
- Patent Title (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
-
Application No.: US12888569Application Date: 2010-09-23
-
Publication No.: US08148310B2Publication Date: 2012-04-03
- Inventor: Wai Mun Lee
- Applicant: Wai Mun Lee
- Main IPC: C11D7/36
- IPC: C11D7/36

Abstract:
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.
Public/Granted literature
- US20110098205A1 COMPOSITION AND METHOD FOR CLEANING SEMICONDUCTOR SUBSTRATES Public/Granted day:2011-04-28
Information query