http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-105074823-B
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-8404 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-84 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73 |
| filingDate | 2014-03-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate | 2018-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2018-10-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | CN-105074823-B |
| titleOfInvention | The manufacturing method of glass substrate for disc, the manufacturing method of glass substrate for disc and disk |
| abstract | The present invention provides a kind of manufacturing method of glass substrate for disc, even if this method can also reduce the foreign matter defect that can cause head crash using HDI sensors.The present invention includes following milled processeds：So that lapping liquid and grinding pad comprising colloidal silicon dioxide is contacted with the surface of glass substrate, mirror ultrafinish is carried out to glass baseplate surface.As lapping liquid, the lapping liquid of foreign matter of the selection without containing each element containing Al, Si and O, when glass substrate is made disk and carries out record regeneration with magnetic head, above-mentioned each element can inhibit record regeneration；It is ground using the lapping liquid. |
| priorityDate | 2013-03-30-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 41.