Abrasive tool making process – material – or composition – With inorganic material
Patent
1997-12-01
1999-04-20
Jones, Deborah
Abrasive tool making process, material, or composition
With inorganic material
51308, 51309, 252 791, B24D 334
Patent
active
058955097
ABSTRACT:
An abrasive composition which can realize chemical-mechanical polishing superior in polishing speed and polishing uniformity.
The abrasive composition comprises abrasive grains, isopropyl alcohol, and water. Grain sizes of the abrasive grains are preferably 30 to 250 nm, and the abrasive grains are preferably SiO.sub.2. Further, it is preferable that contents of the abrasive grains and isopropyl alcohol are 5 to 30 wt % and 1 to 15 wt %, respectively. The abrasive composition of the present invention is characterized in that it is deaerated.
REFERENCES:
patent: 5094687 (1992-03-01), Elepano
patent: 5352277 (1994-10-01), Sasali
patent: 5697992 (1997-12-01), Ueda et al.
patent: 5804513 (1998-09-01), Sakatani et al.
Nitta Takahisa
Ohmi Tadahiro
Jones Deborah
Kabushiki Kaisha Ultraclean Technology Research Institute
Knuth Randall J.
Ohmi Tadahiro
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