http://rdf.ncbi.nlm.nih.gov/pubchem/patent/JP-2021155850-A
Outgoing Links
| Predicate | Object |
|---|---|
| assignee | http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e3b0a3dbf8d6c9712d86ea1383fd5327 |
| classificationIPCInventive | http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D7-00 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D3-32 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D3-60 http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C25D7-12 |
| filingDate | 2021-03-19-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor | http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c8e3403fb271fbc0a52b176288dfdf09 |
| publicationDate | 2021-10-07-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber | JP-2021155850-A |
| titleOfInvention | Electroplating solution and electroplating method |
| abstract | PROBLEM TO BE SOLVED: To reduce the occurrence rate of pit defects in bumps and voids in bumps generated due to non-precipitation of plating due to bubbles generated in an electrolytic plating solution. An electrolytic plating solution containing a soluble salt (A) containing at least a stannous salt, an acid or a salt thereof (B), and a surfactant (C). When the anode current density is electrolyzed at 0.7 A / dm 2 , the maximum particle size distribution of bubbles emitted from the insoluble anode is 150 μm or more. Preferably, the surfactant (C) is a nonionic surfactant of a polyoxyethylene polyoxypropylene block polymer (PO-EO-PO) having a polyoxypropylene (PO) terminal at the end, and the block polymer (PO-PO-). The EO ratio in EO-PO) is in the range of 35% or more and 50% or less in terms of molar ratio, and the mass average molecular weight of the nonionic surfactant is in the range of 3000 or more and 5000 or less. [Selection diagram] Fig. 1 |
| priorityDate | 2020-03-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type | http://data.epo.org/linked-data/def/patent/Publication |
Incoming Links
Total number of triples: 159.