Passive Chemical Project - Parsad, Rajendra
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The corrosion current of bare copper metal was determined in ferric ion and in hydrogen peroxide solutions and was found to be close to the CMP rate reported in the literature. This leads to the new conclusion that copper CMP is mainly a corrosive wear process that occurs at the abraded spots on the wafer surface, the high spots. Cu(I)BTA film forms only at the low areas which are not being abraded. This finding calls for the revision of the conventional view that CMP involves a successive sequence of film formation and removal.

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Produktbeschreibung
The corrosion current of bare copper metal was determined in ferric ion and in hydrogen peroxide solutions and was found to be close to the CMP rate reported in the literature. This leads to the new conclusion that copper CMP is mainly a corrosive wear process that occurs at the abraded spots on the wafer surface, the high spots. Cu(I)BTA film forms only at the low areas which are not being abraded. This finding calls for the revision of the conventional view that CMP involves a successive sequence of film formation and removal.
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Autorenporträt
Dr Rajendra Parsad is a researcher at The Mahatma Gandhi Institute in India. He also teaches Chemistry in the same location. He received a Ph.D in chemistry in May 2002.