GB276622A - Improvements relating to current rectifying apparatus - Google Patents
Improvements relating to current rectifying apparatusInfo
- Publication number
- GB276622A GB276622A GB11611/27A GB1161127A GB276622A GB 276622 A GB276622 A GB 276622A GB 11611/27 A GB11611/27 A GB 11611/27A GB 1161127 A GB1161127 A GB 1161127A GB 276622 A GB276622 A GB 276622A
- Authority
- GB
- United Kingdom
- Prior art keywords
- blanks
- oxide
- coatings
- adjacent surfaces
- cupric oxide
- 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 abstract 6
- 238000000576 coating method Methods 0.000 abstract 6
- 239000011248 coating agent Substances 0.000 abstract 3
- 229960004643 cupric oxide Drugs 0.000 abstract 3
- 229910052751 metal Inorganic materials 0.000 abstract 3
- 239000002184 metal Substances 0.000 abstract 3
- 230000003647 oxidation Effects 0.000 abstract 3
- 238000007254 oxidation reaction Methods 0.000 abstract 3
- 150000001875 compounds Chemical class 0.000 abstract 2
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 abstract 2
- KRFJLUBVMFXRPN-UHFFFAOYSA-N cuprous oxide Chemical compound [O-2].[Cu+].[Cu+] KRFJLUBVMFXRPN-UHFFFAOYSA-N 0.000 abstract 2
- 229940112669 cuprous oxide Drugs 0.000 abstract 2
- 230000001590 oxidative effect Effects 0.000 abstract 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 abstract 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract 1
- XFXPMWWXUTWYJX-UHFFFAOYSA-N Cyanide Chemical compound N#[C-] XFXPMWWXUTWYJX-UHFFFAOYSA-N 0.000 abstract 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 abstract 1
- 230000015572 biosynthetic process Effects 0.000 abstract 1
- 229910052799 carbon Inorganic materials 0.000 abstract 1
- 229910052802 copper Inorganic materials 0.000 abstract 1
- 239000010949 copper Substances 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- NNFCIKHAZHQZJG-UHFFFAOYSA-N potassium cyanide Chemical compound [K+].N#[C-] NNFCIKHAZHQZJG-UHFFFAOYSA-N 0.000 abstract 1
- 229910052708 sodium Inorganic materials 0.000 abstract 1
- 239000011734 sodium Substances 0.000 abstract 1
- 239000007787 solid Substances 0.000 abstract 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/16—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising cuprous oxide or cuprous iodide
- H01L21/161—Preparation of the foundation plate, preliminary treatment oxidation of the foundation plate, reduction treatment
- H01L21/164—Oxidation and subsequent heat treatment of the foundation plate
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/16—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising cuprous oxide or cuprous iodide
- H01L21/161—Preparation of the foundation plate, preliminary treatment oxidation of the foundation plate, reduction treatment
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
- H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
- H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer
- H01L21/16—Manufacture or treatment of semiconductor devices or of parts thereof the devices having potential barriers, e.g. a PN junction, depletion layer or carrier concentration layer the devices having semiconductor bodies comprising cuprous oxide or cuprous iodide
- H01L21/161—Preparation of the foundation plate, preliminary treatment oxidation of the foundation plate, reduction treatment
- H01L21/165—Reduction of the copper oxide, treatment of the oxide layer
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- Power Engineering (AREA)
- Thermal Sciences (AREA)
- Contacts (AREA)
- Manufacture Of Switches (AREA)
- Braking Arrangements (AREA)
- Primary Cells (AREA)
- Chemical Treatment Of Metals (AREA)
Abstract
276,622. Westinghouse Brake & Saxby Signal Co., Ltd., (Assignees of Geiger, P. H., Brown, W. S., and Ackerly, D. G.). Aug. 26, 1926, [Convention date]. Coating. - In solid unidirectional conducting devices employing metal bodies coated, with a compound of the metal as described, for example, in Specification 257,305, the compound is formed on a part only, or to a greater extent on one part, of the surface of the metal body. In one form, copper blanks A are arranged in pairs on a support B with their adjacent faces in contact and heated in an oxidizing atmosphere with the result that coatings of cuprous oxide D and cupric oxide C, Fig. 3, are produced which are thinner on the adjacent surfaces A<1>. The blank is then treated with a cyanide solution, for example a. solution of sodium or potassium cyanide, until both oxide coatings have been removed from the surface having thin coatings and the cupric oxide coating has been removed from the other surfaces, leaving the blank with a cuprous oxide coating extending as indicated at D, Fig. 4. The formation of oxide on one surface during the oxidation treatment may be avoided by assembling the blanks in notches on the support B, the notches having inclined faces 1, 2, Fig. 10, so that the blanks, are held in close contact, and by placing a ring G round the peripheries of the blanks to exclude the oxidizing atmosphere from the adjacent surfaces. According to an alternative method, a layer of deoxidizing material such as carbon is inserted between the blanks to prevent oxidation of the adjacent surfaces. In all cases, the outer layer of cupric oxide is removed after the oxidation treatment.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US55523A US1892832A (en) | 1925-09-10 | 1925-09-10 | Process of preparing uni-directional current carrying devices |
| US131620A US1704734A (en) | 1925-09-10 | 1926-08-26 | Manufacture of electrical rectifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB276622A true GB276622A (en) | 1928-07-30 |
Family
ID=26734321
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB11611/27A Expired GB276622A (en) | 1925-09-10 | 1927-04-30 | Improvements relating to current rectifying apparatus |
Country Status (6)
| Country | Link |
|---|---|
| US (2) | US1892832A (en) |
| BE (2) | BE332988A (en) |
| DE (2) | DE529305C (en) |
| FR (3) | FR595909A (en) |
| GB (1) | GB276622A (en) |
| NL (2) | NL19973C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2462218A (en) * | 1945-04-17 | 1949-02-22 | Bell Telephone Labor Inc | Electrical translator and method of making it |
| US2496721A (en) * | 1945-10-19 | 1950-02-07 | Westinghouse Electric Corp | Rectifier |
| DE972433C (en) * | 1951-10-07 | 1959-07-23 | Siemens Ag | Process for the production of copper oxide rectifier disks |
| US2990300A (en) * | 1957-12-16 | 1961-06-27 | Mc Graw Edison Co | Protective device |
-
1925
- 1925-03-28 FR FR595909D patent/FR595909A/en not_active Expired
- 1925-09-10 US US55523A patent/US1892832A/en not_active Expired - Lifetime
-
1926
- 1926-03-12 DE DEW71965D patent/DE529305C/en not_active Expired
- 1926-03-18 NL NL32884A patent/NL19973C/xx active
- 1926-03-26 BE BE332988D patent/BE332988A/xx unknown
- 1926-08-09 FR FR32129D patent/FR32129E/en not_active Expired
- 1926-08-26 US US131620A patent/US1704734A/en not_active Expired - Lifetime
-
1927
- 1927-04-30 GB GB11611/27A patent/GB276622A/en not_active Expired
- 1927-08-06 DE DEW76784D patent/DE487733C/en not_active Expired
- 1927-08-09 NL NL37905A patent/NL23279C/xx active
- 1927-08-19 FR FR34002D patent/FR34002E/en not_active Expired
- 1927-08-24 BE BE344478D patent/BE344478A/xx unknown
Also Published As
| Publication number | Publication date |
|---|---|
| US1704734A (en) | 1929-03-12 |
| DE529305C (en) | 1931-07-11 |
| NL19973C (en) | 1929-05-15 |
| BE332988A (en) | 1928-04-30 |
| US1892832A (en) | 1933-01-03 |
| NL23279C (en) | 1930-12-15 |
| BE344478A (en) | 1927-08-30 |
| FR34002E (en) | 1929-04-29 |
| DE487733C (en) | 1929-12-19 |
| FR32129E (en) | 1927-09-10 |
| FR595909A (en) | 1925-10-12 |
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