Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Thomas J. Drury0
Date of Patent
June 7, 2011
0Patent Application Number
120710170
Date Filed
February 14, 2008
0Patent Primary Examiner
Patent abstract
The invention is directed toward a chemical mechanical polishing/planarizing (CMP) brush with an embedded mandrel. PVA foam injected into the substantially hollow mandrel expands through apertures in the mandrel to fill a mold in the desired shape of the brush with the foam in the mandrel being integral with the outer foam covering the brush.
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