Polishing pad for semiconductor wafer and laminated body for...

Abrading – Abrading process – Glass or stone abrading

Reexamination Certificate

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C451S006000, C451S008000, C451S010000, C451S286000, C451S287000, C451S288000, C451S289000, C451S526000, C451S527000, C451S529000

Reexamination Certificate

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06855034

ABSTRACT:
An objective of the present invention is to provide a polishing pad for a semiconductor wafer and a laminated body for polishing of a semiconductor wafer equipped with the same which can perform optical endpoint detection without lowering the polishing performance as well as methods for polishing of a semiconductor wafer using them. The polishing pad of the invention comprises a water-insoluble matrix material such as crosslinked 1,2-polybutadiene, and a water-soluble particle such as β-cyclodextrin dispersed in this water-insoluble matrix material, and has a light transmitting properties so that a polishing endpoint can be detected with a light.

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