GB1060075A - Process for coating surfaces - Google Patents
Process for coating surfacesInfo
- Publication number
- GB1060075A GB1060075A GB4533962A GB4533962A GB1060075A GB 1060075 A GB1060075 A GB 1060075A GB 4533962 A GB4533962 A GB 4533962A GB 4533962 A GB4533962 A GB 4533962A GB 1060075 A GB1060075 A GB 1060075A
- Authority
- GB
- United Kingdom
- Prior art keywords
- solution
- plating
- catalyzing
- nah2po2
- treating
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C18/00—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
- C23C18/16—Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating by reduction or substitution, e.g. electroless plating
- C23C18/31—Coating with metals
- C23C18/32—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron
- C23C18/34—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents
- C23C18/36—Coating with nickel, cobalt or mixtures thereof with phosphorus or boron using reducing agents using hypophosphites
Landscapes
- Chemical & Material Sciences (AREA)
- General Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Chemically Coating (AREA)
- Manufacturing Of Printed Wiring (AREA)
Abstract
A surface is coated with metal, e.g. to improve its wear-resistance and solderability, by treating it with a catalyzing solution for Ni or Co plating such as a dilute solution of PdCl2 in water acidified with HCl, chemically plating Ni or Co on the treated surface, and chemically plating Au on the Ni - or Co - plated surface, e.g. by immersion in a solution of composition: NH4Cl F5g/1, NaNO3 50g/1, NaH2PO2 10g/1 and KAu(CN)2 2g/1. A chemical Ni plating solution may have the composition: Na4P2O7 50g/1, NiSO4 25g/1, NaH2PO2 25g/1 and NH4OH sufficient to maintain pH value 10 - 11. The above steps may be repeated one or more times. The surface to be coated may be the copper conducting areas of a printed circuit board of plastic insulating material. After treating the surface with catalyzing solution, the board may be rinsed in dilute HCl to remove catalyzing ions from the insulating portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4533962A GB1060075A (en) | 1962-11-30 | 1962-11-30 | Process for coating surfaces |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB4533962A GB1060075A (en) | 1962-11-30 | 1962-11-30 | Process for coating surfaces |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1060075A true GB1060075A (en) | 1967-02-22 |
Family
ID=10436842
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4533962A Expired GB1060075A (en) | 1962-11-30 | 1962-11-30 | Process for coating surfaces |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1060075A (en) |
-
1962
- 1962-11-30 GB GB4533962A patent/GB1060075A/en not_active Expired
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