http://rdf.ncbi.nlm.nih.gov/pubchem/patent/CN-103668365-A
Outgoing Links
Predicate | Object |
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assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_2958f68f11e5de691204a5edf966afef |
classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D3-56 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/H05K1-02 |
filingDate | 2013-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_00631007664ef2bc8258334897d85e58 |
publicationDate | 2014-03-26-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
publicationNumber | CN-103668365-A |
titleOfInvention | Electroplating method of iron composite layer |
abstract | The invention relates to an electroplating method. The invention aims to solve the problem of overhigh precipitation proportion of gold by combination of other metals and gold assisted by very small amounts of additives, and can maintain favorable conductivity. The electroplating method comprises the following step: electroplating the electric contact position of an electronic product in an electroplating solution in a weakly-acidic environment, wherein the electroplating solution comprises cyanate ions, gold ions, a chelator, iron ion salts and borate ions. In the solution, the iron content is 1-5 g/L, the borate content is 10-30 g/L, the chelator content is 50-100 g/L, and the gold iron content accounts for 30-60 wt% of the iron ion content. The solution comprises the following components: gold cyanate, EDTA-Fe, ferric citrate or ferric sulfate, iron borate, EDTA and boric acid. The solution also contains an organic acid for regulating the pH value to 6-7 (weakly-acidic). The organic acid is citric acid. |
priorityDate | 2013-12-12-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 39.