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Planarcore® PVA brushes are designed to deliver superior performance and wafer-to-wafer uniformity in post-CMP wafer cleaning applications. The unique molded-through-the-core technology provides absolute adhesion of the PVA (polyvinyl alcohol) to the brush core, unlike standard PVA products that are merely friction fitted to the core. The dimensional stability and core flow equalization of disposable Planarcore PVA brushes also eliminates the uncertainty associated with stand-alone and pre-mounted PVA products. PVA slippage, expansion and loss of concentricity are no longer a concern with the superior performance of Planarcore PVA brushes from Entegris.