COMPOSITE CONDITIONER AND ASSOCIATED METHODS
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United States of America Patent
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app pub date -
Mar 12, 2013
filing date -
May 16, 2005
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Abstract
CMP pad dressers having leveled tips and associated methods are provided. In one aspect, for example, a composite conditioner can include a base plate and a plurality of polishing units secured to a surface of the base plate by an adhesive layer, where each polishing unit includes a plurality of polishing tips secured in a binding layer. Additionally, a height difference between a first highest polishing tip and a second highest polishing tip is less than or equal to about 10 μm, a height difference between the first highest polishing tip and a tenth highest polishing tip is less than or equal to about 20 μm, and a height difference between the first highest polishing tip and a 100th highest polishing tip is less than or equal to about 40 μm. Furthermore, the first highest polishing tip protrudes from the binding layer to a height of greater than or equal to about 50 μm.
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