公开(公告)号：BR0014755A

公开(公告)日：2002-09-24

申请号：BR0014755

申请日：2000-08-30

Applicant: SAINT GOBAIN CERAMICS E PLASTI

Inventor： GARG AJAY K ,  TANIKELLA BRAHMANANDAM V ,  DELANEY WILLIAM R

IPC: B24B57/02 ,  B24B37/24 ,  B24D3/00 ,  B24D3/28 ,  B24D3/34 ,  C09G1/02 ,  C09K3/14 ,  H01L21/304

Abstract: Abrasive materials comprising silica-coated transitional alumina particles with an average particle size of less than 50 nanometers and a BET surface area of at least 50 m2/gm are useful in CMP processes either in the form of slurries or as fixed abrasives.