Polishing composition

A polishing composition comprising an aqueous medium and abrasive particles, wherein the abrasive particles comprise abrasive particles having a particle size of 2 to 200 nm in an amount of 50% by volume or more, the abrasive particles having a particle size of 2 to 200 nm comprising (i) 40 to 75% b...

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Bibliographic Details
Main Authors HAGIHARA, TOSHIYA, TAKASHINA, SHIGEAKI, YONEDA, YASUHIRO
Format Patent
LanguageChinese
English
Published 16.10.2004
Subjects
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Summary:A polishing composition comprising an aqueous medium and abrasive particles, wherein the abrasive particles comprise abrasive particles having a particle size of 2 to 200 nm in an amount of 50% by volume or more, the abrasive particles having a particle size of 2 to 200 nm comprising (i) 40 to 75% by volume of small size particles having a particle size of 2 nm or more and less than 58 nm; (ii) 0 to 50% by volume of intermediate size particles having a particle size of 58 nm or more and less than 75 nm; and (iii) 10 to 60% by volume of large size particles having a particle size of 75 nm or more and 200 nm or less; a polishing composition comprising an aqueous medium and abrasive particles, wherein the abrasive particles comprise abrasive particles (A) having an average particle size of 2 to 50 nm; and abrasive particles (B) having an average particle size of 52 to 200 nm, wherein a weight ratio of A to B (A/B) is from 0.5/1 to 4.5/1; a polishing process comprising subjecting a semiconductor substrate to plan
Bibliography:Application Number: TW200392121153