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    • 6. 发明公开
    • Polishing pad and production method thereof
    • Polierkissen und Herstellungsverfahren desselben
    • EP1468785A2
    • 2004-10-20
    • EP04008869.2
    • 2004-04-14
    • JSR Corporation
    • Sakurai, FujioMihara, IwaoIgarashi, YoshinoriHasegawa, Kou
    • B24B37/04B24D3/34
    • B24D18/00B24B37/24B24D3/342
    • There are provided a polishing pad which exhibits excellent polishing stability and excellent slurry retainability during polishing and even after dressing, can prevent a reduction in polishing rate effectively and is also excellent in an ability to flatten an substrate to be polished, and a method for producing the polishing pad. The method comprises dispersing water-soluble particles such as β-cyclodextrin into a crosslinking agent such as a polypropylene glycol so as to obtain a dispersion, mixing the dispersion with a polyisocyanate such as 4,4'-diphenylmethane diisocyanate and/or an isocyanate terminated urethane prepolymer, and reacting the mixed solution so as to obtain a polishing pad having the water-soluble particles dispersed in the matrix.
    • 本发明提供了一种研磨抛光稳定性优异且研磨时的浆料保持性良好,即使在修整后也能够有效地抑制研磨速度降低且平坦化被研磨基板的能力优异的抛光垫, 抛光垫。 该方法包括将水溶性颗粒如β-环糊精分散到交联剂例如聚丙二醇中,以获得分散体,将分散体与多异氰酸酯如4,4'-二苯基甲烷二异氰酸酯和/或异氰酸酯封端 氨基甲酸酯预聚物,并使混合溶液反应,以获得具有分散在基质中的水溶性颗粒的抛光垫。