http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2007136583-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_8fb9f44db08d1c42a53f3d28eaae416f |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B24B37-00 |
| filingDate | 2005-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_f5fec9013732000ee2c1d2d0b9a0af57 |
| publicationDate | 2007-06-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2007136583-A |
| titleOfInvention | Manufacturing method of magnetic disk substrate |
| abstract | The present invention provides a method for producing a highly smooth substrate necessary for a magnetic disk substrate having a high recording density, particularly a high recording density of 50 Gbit / in 2 or more. A polishing liquid composition A containing colloidal particles having a volume average particle diameter of 0.005 to 0.1 μm is supplied to a substrate, and the substrate is polished at a main processing pressure of 6 kPa or more. A method for producing a magnetic disk substrate having a step of polishing the substrate at a processing pressure of 20 to 80%, and a method for producing a magnetic disk substrate having the following steps: (Step 1) Volume average particle diameter 0.005 A step of supplying a polishing composition B containing colloidal particles of ˜0.1 μm to the substrate and polishing the substrate with a main processing pressure of 6 kPa or more, and (Step 2) The substrate obtained in Step 1 has a volume Supplying a polishing liquid composition C containing colloidal particles having an average particle size of 0.005 to 0.1 μm, and polishing the substrate at a processing pressure of 20 to 80% of the main processing pressure in Step 1; [Selection figure] None |
| isCitedBy | http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2008302489-A http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2013000836-A |
| priorityDate | 2005-11-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 54.