Method for polishing a memory or rigid disk with an amino acid-containing composition
US6471884B1 · kind B1 · utility
9Cited by
6References
25Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2000 |
| Grant date | Oct 29, 2002 |
| Priority date | — |
| Expiry date | Apr 4, 2020 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/8404
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A method of planarizing or polishing the surface of a memory or rigid disk comprising abrading at least a portion of the surface with (i) a polishing composition comprising an oxidizing agent selected from the group consisting of persulfates and peroxides, an amino acid, and water, and (ii) an abrasive.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.