Abrading – Abrading process – Utilizing fluent abradant
Patent
1999-12-15
2000-10-03
Banks, Derris H.
Abrading
Abrading process
Utilizing fluent abradant
451 57, 451 41, B24B 100, B24C 100
Patent
active
061265152
ABSTRACT:
A liquid slurry containing spherical abrading particles of polyhedral monocrystalline alumina is supplied onto the target surface of a magnetic hard disk substrate to be textured while a polishing tape is pressed onto the target surface and the disk substrate is concurrently rotated. Because the contacting surfaces of these particles are spherical and have no sharp edges, they do not scratch the target surface or create grooves which are undesirably too deep.
REFERENCES:
patent: 5209027 (1993-05-01), Ishida et al.
patent: 5586926 (1996-12-01), Wedell et al.
patent: 5702291 (1997-12-01), Isobe
patent: 5899794 (1999-05-01), Shige et al.
Horie Yuji
Watanabe Jun
Banks Derris H.
Nihon Micro Coating Co., Ltd.
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