Method to remove metals in a scrubber

A method to remove metal contaminants in a substrate cleaning process. The present invention may replace or be used in conjunction with other substrate cleaning systems. This method comprises adding a citric acid solution to the liquid medium of a semiconductor substrate cleaning system. This method...

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Bibliographic Details
Main Authors KRUSELL WILBUR C, MALIK IGOR J
Format Patent
LanguageEnglish
Published 14.08.2001
Edition7
Subjects
BASIC ELECTRIC ELEMENTS
CLEANING
CLEANING IN GENERAL
ELECTRIC SOLID STATE DEVICES NOT OTHERWISE PROVIDED FOR
ELECTRICITY
PERFORMING OPERATIONS
PREVENTION OF FOULING IN GENERAL
SEMICONDUCTOR DEVICES
TRANSPORTING
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Summary:A method to remove metal contaminants in a substrate cleaning process. The present invention may replace or be used in conjunction with other substrate cleaning systems. This method comprises adding a citric acid solution to the liquid medium of a semiconductor substrate cleaning system. This method is described in the manner it is used in conjunction with a scrubber wherein both sides of a wafer are scrubbed.
Bibliography:Application Number: US19960615520