Methods for preventing corrosion of plasma-exposed yttria-coated constituents
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United States of America Patent
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Apr 30, 2013
Grant Date -
Feb 9, 2012
app pub date -
Aug 9, 2010
filing date -
Aug 9, 2010
priority date (Note) -
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Abstract
In accordance with one embodiment of the present disclosure, a method for preventing corrosion of a plasma-exposed yttria-coated constituent from ambient acidic hydrolysis wherein the plasma-exposed yttria-coated constituent includes a hydrolysable acid precursor is disclosed. The method may include: removing the plasma-exposed yttria-coated constituent from a semiconductor processing assembly; binding the plasma-exposed yttria-coated constituent with flexible moisture wicking material; hydrolyzing the hydrolysable acid precursor with an overwhelming aqueous admixture to form a vitiated acidic compound, wherein the flexible moisture wicking material pulls the vitiated acidic compound away from the plasma-exposed yttria-coated constituent with capillary action; dehydrating the plasma-exposed yttria-coated constituent with additional flexible moisture wicking material to pull a latent amount of the vitiated acidic compound away from the plasma-exposed yttria-coated constituent; and isolating the plasma-exposed yttria-coated constituent from ambient moisture in a moisture obstructing enclosure.
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