http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-WO2012046712-A1
Outgoing Links
| Predicate | Object |
|---|---|
| classificationCPCAdditional | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C18-1844 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-858 |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C18-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-8404 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C23C18-1651 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C23C18-36 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-84 |
| filingDate | 2011-10-04-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationDate | 2014-02-24-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-WO2012046712-A1 |
| titleOfInvention | Hard disk substrate manufacturing method and hard disk substrate |
| abstract | It is an object of the present invention to obtain a hard disk substrate manufacturing method and a hard disk substrate that can obtain a smooth plating film surface by electroless NiP plating and that does not deteriorate acid corrosion resistance. The method for producing a hard disk substrate of the present invention is a method for producing a hard disk substrate having an electroless NiP plating film, wherein the substrate is immersed in a first electroless NiP plating bath containing an additive having a smoothing action. And forming a lower layer of the electroless NiP plating film having an average surface roughness smaller than the surface on the surface of the substrate, and the electroless NiP plating film by the first plating process. A second plating step of immersing the substrate on which the lower layer is formed in a second electroless NiP plating bath to form an upper layer of the electroless NiP plating film having acid corrosion resistance. Thereby, a plating film having a smooth surface is obtained without deteriorating acid corrosion resistance. |
| priorityDate | 2010-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 49.