Polishing pad with high optical transmission window

The present invention provides a chemical mechanical polishing pad comprising a polishing pad having a window formed therein and wherein the window is formed from a reaction of an aliphatic polyisocyanate, a hydroxyl-containing material and a curing agent.

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Bibliographische Detailangaben
1. Verfasser: Roberts, John V. H
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The present invention provides a chemical mechanical polishing pad comprising a polishing pad having a window formed therein and wherein the window is formed from a reaction of an aliphatic polyisocyanate, a hydroxyl-containing material and a curing agent.