Method of electroplating with Sn-alloy and apparatus of electroplating with Sn-alloy
US9506163B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2013 |
| Grant date | Nov 29, 2016 |
| Priority date | — |
| Expiry date | Jun 29, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC25D21/18
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
To provide a method of electroplating with Sn-alloy in which a problem of deposition of metals on an anode when electroplating with Sn-alloy such as Sn—Ag based-alloy or the like is performed is solved and a soluble anode is enabled to be used. Dividing an inside of a plating tank into a cathode cell and an anode cell by an anion-exchange membrane; supplying plating solution including Sn ions to the cathode cell; supplying acid solution to the anode cell; electroplating by energizing an object to be plated in the cathode cell and an anode made of Sn in the anode cell; and using the acid solution including Sn ions liquated out form the anode made of Sn along with progress of plating as replenishing solution of Sn ions for plating solution in the cathode cell.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.