http://rdf.ncbi.nlm.nih.gov/pubchem/patent/TW-201407607-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_888c17427537b9cb8c9a63f20631067b |
| classificationCPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-8404 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-858 http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G11B5-73913 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-73 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G11B5-84 |
| filingDate | 2013-04-08-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_0d8f11403ee1632a18f0d8f8b1975ec5 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2c4a8fc5ca242d1776a217056ab67243 http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_67db820c6891139384d80d8928525c11 |
| publicationDate | 2014-02-16-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | TW-201407607-A |
| titleOfInvention | Method for manufacturing hard disk substrate |
| abstract | An object of the present invention is to provide a substrate for a hard disk which can obtain a smooth surface of an electroplated film by electroless NiP plating without deteriorating acid corrosion resistance. The method for producing a substrate for a hard disk according to the present invention includes a first plating process in which a substrate is immersed in a first electroless NiP plating bath containing an additive having a smoothing action, and on the surface of the substrate. Forming a lower surface layer of the electroless NiP plating film having an average surface roughness smaller than the surface; and a second plating process, wherein the substrate of the lower layer of the electroless NiP plating film is formed by the first plating process. The immersion in the second electroless NiP plating bath forms an upper layer of the electroless NiP plating film having the acid corrosion resistance, and suppresses the lower layer and the atmosphere during the transition from the first plating process to the second plating process. s contact. |
| priorityDate | 2012-04-10-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.