发明申请
US20080214006A1 METHODS OF USING CORROSION-INHIBITING CLEANING COMPOSITIONS FOR METAL LAYERS AND PATTERNS ON SEMICONDUCTOR SUBSTRATES 审中-公开
在金属层上使用腐蚀抑制性清洁组合物和在半导体衬底上形成图案的方法

METHODS OF USING CORROSION-INHIBITING CLEANING COMPOSITIONS FOR METAL LAYERS AND PATTERNS ON SEMICONDUCTOR SUBSTRATES
摘要:
Provided herein are methods for using corrosion-inhibiting cleaning compositions for semiconductor wafer processing that include an aqueous admixture of at least water, a surfactant and a corrosion-inhibiting compound selected from a group consisting of amino phosphonates, polyamines and polycarboxylic acids. The quantity of the corrosion-inhibiting compound in the admixture is preferably in a range from about 0.0001 wt % to about 0.1 wt % and the quantity of the surfactant is preferably in a range from about 0.001 wt % to about 1.0 wt %. The aqueous admixture may also include sulfuric acid and a fluoride, which act as oxide etchants, and a peroxide, which acts as a metal etchant.
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