GB556886A - Improvements in and relating to methods of plating copper oxide rectifier elements - Google Patents
Improvements in and relating to methods of plating copper oxide rectifier elementsInfo
- Publication number
- GB556886A GB556886A GB13874/42A GB1387442A GB556886A GB 556886 A GB556886 A GB 556886A GB 13874/42 A GB13874/42 A GB 13874/42A GB 1387442 A GB1387442 A GB 1387442A GB 556886 A GB556886 A GB 556886A
- Authority
- GB
- United Kingdom
- Prior art keywords
- rinsed
- oct
- copper oxide
- treated
- oxide rectifier
- 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
- QPLDLSVMHZLSFG-UHFFFAOYSA-N Copper oxide Chemical compound [Cu]=O QPLDLSVMHZLSFG-UHFFFAOYSA-N 0.000 title abstract 2
- 239000005751 Copper oxide Substances 0.000 title abstract 2
- 229910000431 copper oxide Inorganic materials 0.000 title abstract 2
- 238000000034 method Methods 0.000 title 1
- 238000007747 plating Methods 0.000 title 1
- HEMHJVSKTPXQMS-UHFFFAOYSA-M Sodium hydroxide Chemical compound [OH-].[Na+] HEMHJVSKTPXQMS-UHFFFAOYSA-M 0.000 abstract 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 abstract 1
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 abstract 1
- 229940112669 cuprous oxide Drugs 0.000 abstract 1
- 230000002950 deficient Effects 0.000 abstract 1
- 238000007689 inspection Methods 0.000 abstract 1
- 239000002184 metal Substances 0.000 abstract 1
- 229910052751 metal Inorganic materials 0.000 abstract 1
- 235000011121 sodium hydroxide Nutrition 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
- H10D48/00—Individual devices not covered by groups H10D1/00 - H10D44/00
- H10D48/01—Manufacture or treatment
- H10D48/07—Manufacture or treatment of devices having bodies comprising cuprous oxide [Cu2O] or cuprous iodide [CuI]
- H10D48/071—Preparation of the foundation plate, preliminary treatment oxidation of the foundation plate or reduction treatment
- H10D48/075—Reduction of the copper oxide or treatment of the oxide layer
Landscapes
- Electroplating Methods And Accessories (AREA)
Abstract
556.886. Copper oxide rectifier element. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 2, 1942, No. 13874. Convention date, Oct. 4, 1941. [Classes 37 and 41] the cubic oxide layer and part of the underlying cuprous oxide layer formed on copner oxide rectifier elements are reduced to metallic cooper by cathodic treatment for about six minutes in a 0.5 ner cent caustic soda solution at room temperature and low voltage (13-15 volts), rinsed in weak HCl and plated with Co., Ni., or Zn. Specification 283,901, [Class 37], is referred to. The Specification as open to inspection under Sect. 91, states that defective completed elements may be rendered satisfactorily by being treated with concentrated HNO 3 and H 2 SO 4 to remove the plated metal and the copper layer, rinsed, and then treated as above. This subject-matter does not appear in the Specification as accented.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US556886XA | 1941-10-04 | 1941-10-04 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB556886A true GB556886A (en) | 1943-10-26 |
Family
ID=21999530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB13874/42A Expired GB556886A (en) | 1941-10-04 | 1942-10-02 | Improvements in and relating to methods of plating copper oxide rectifier elements |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB556886A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2937703A (en) * | 1954-03-15 | 1960-05-24 | Napier & Son Ltd | Combustion turbines and their installation in aircraft |
-
1942
- 1942-10-02 GB GB13874/42A patent/GB556886A/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2937703A (en) * | 1954-03-15 | 1960-05-24 | Napier & Son Ltd | Combustion turbines and their installation in aircraft |
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