Abrasive, method of polishing target member and process for...

Abrading – Abrading process – Glass or stone abrading

Reexamination Certificate

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Details

C451S307000, C451S308000, C451S309000

Reexamination Certificate

active

07115021

ABSTRACT:
To polish polishing target surfaces of SiO2insulating films or the like at a high rate without scratching the surface, the present invention provides an abrasive comprising a slurry comprising a medium and dispersed therein at least one of i) cerium oxide particles constituted of at least two crystallites and having crystal grain boundaries or having a bulk density of not higher than 6.5 g/cm3and ii) abrasive grains having pores. Also provided are a method of polishing a target member and a process for producing a semiconductor device which make use of this abrasive.

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