DE537123C - Process for the manufacture of copper oxide rectifiers - Google Patents
Process for the manufacture of copper oxide rectifiersInfo
- Publication number
- DE537123C DE537123C DEK109362D DEK0109362D DE537123C DE 537123 C DE537123 C DE 537123C DE K109362 D DEK109362 D DE K109362D DE K0109362 D DEK0109362 D DE K0109362D DE 537123 C DE537123 C DE 537123C
- Authority
- DE
- Germany
- Prior art keywords
- copper oxide
- reduction
- copper
- oxide layer
- black
- 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 claims description 19
- 238000000034 method Methods 0.000 title claims description 8
- 239000005751 Copper oxide Substances 0.000 title claims description 5
- 229910000431 copper oxide Inorganic materials 0.000 title claims description 5
- 238000004519 manufacturing process Methods 0.000 title claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 13
- 229910052802 copper Inorganic materials 0.000 claims description 13
- 239000010949 copper Substances 0.000 claims description 13
- BERDEBHAJNAUOM-UHFFFAOYSA-N copper(I) oxide Inorganic materials [Cu]O[Cu] BERDEBHAJNAUOM-UHFFFAOYSA-N 0.000 claims description 3
- LBJNMUFDOHXDFG-UHFFFAOYSA-N copper;hydrate Chemical compound O.[Cu].[Cu] LBJNMUFDOHXDFG-UHFFFAOYSA-N 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 3
- 238000007254 oxidation reaction Methods 0.000 claims description 3
- 239000003921 oil Substances 0.000 description 8
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 239000006227 byproduct Substances 0.000 description 1
- 150000001720 carbohydrates Chemical class 0.000 description 1
- 235000014633 carbohydrates Nutrition 0.000 description 1
- 239000012230 colorless oil Substances 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 235000011187 glycerol Nutrition 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 235000010446 mineral oil Nutrition 0.000 description 1
- 239000004006 olive oil Substances 0.000 description 1
- 239000012188 paraffin wax Substances 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02367—Substrates
- H01L21/0237—Materials
- H01L21/02425—Conductive materials, e.g. metallic silicides
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02518—Deposited layers
- H01L21/02521—Materials
- H01L21/02565—Oxide semiconducting materials not being Group 12/16 materials, e.g. ternary compounds
-
- 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
- H01L21/02104—Forming layers
- H01L21/02365—Forming inorganic semiconducting materials on a substrate
- H01L21/02612—Formation types
- H01L21/02614—Transformation of metal, e.g. oxidation, nitridation
-
- 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)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Manufacturing & Machinery (AREA)
- Computer Hardware Design (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Power Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Materials Engineering (AREA)
- Chemical Treatment Of Metals (AREA)
Description
Die Erfindung betrifft ein Verfahren zur Herstellung von Kupferoxydulgleichrichtern durch Oxydation einer Kupferplatte und nachfolgender Reduktion der außer der roten Kupferoxydulschicht mitgebildeten schwarzen Kupferoxydschicht. Die schwarze Kupferoxydschicht trägt in keiner Weise zur Gleichrichtung des elektrischen Stromes bei und ist bekanntlich ein unerwünschtes Nebenerzeugnis, welches bei der Oxydation der Kupferplatte entsteht. Da diese schwarze Kupferoxydschicht außerdem ein schlechter Leiter ist, so muß sie auf irgendeine Weise entfernt werden, wenn man mehrere Gleichrichterplatten zu einem Gleichrichter großer Leistung zusammenlegen will. Dieses kann in bekannter W7eise durch eine Reduktion der oxydierten Kupferplatte geschehen, indem man die erwärmte Platte in ein Mineralöl eintaucht und sie dadurch abschreckt. Bei diesem bekannten Verfahren, welches die vollständige Reduktion der schwarzen Kupferoxydschicht zum Ziel hat, muß man aber sehr große Sorgfalt anwenden, indem die Temperaturen der Kupferplatte und des Ölbades genau eingehalten werden müssen. Durch die etwas gewalttätige Reduktion ist nämlich eine Zerstörung der unter der schwarzen Kupferoxydschicht liegenden roten Kupferoxydulschicht zu befürchten, was die ganze Gleichrichterplatte unbrauchbar machen würde. Dieser Nachteil des bekannten Verfahrens ist so groß, daß bisher die wirtschaftliche Herstellung größerer Mengen von Kupferoxydulgleichrichtern unmöglich war. Gemäß der Erfindung wird dieser Nachteil dadurch beseitigt, daß man die Reduktion der schwarzen Kupferoxydschicht nur so weit führt, daß noch eine Schicht schwarzen Kupferoxyds erhalten bleibt. Hierdurch wird mit Sicherheit eine Zerstörung der roten Kupferoxydulschicht verhindert, und die Reduktion kann unter weniger ^0 scharfen Temperaturbedingungen vorgenommen werden. Diese schwarze Kupferoxydschicht hat an ihrer Außenseite eine Schicht reinen Kupfers und ist außerdem so dünn, daß sie die gute Gleichrichterwirkung der Platte nicht beeintr ächtigt.The invention relates to a method for producing copper oxide rectifiers by oxidation of a copper plate and subsequent reduction of the black copper oxide layer which is also formed in addition to the red copper oxide layer. The black copper oxide layer in no way contributes to the rectification of the electrical current and is known to be an undesirable by-product which arises from the oxidation of the copper plate. Since this black copper oxide layer is also a poor conductor, it must be removed in some way if one wants to combine several rectifier plates to form a high-performance rectifier. In known W 7 of this else can be done by reduction of the oxidized copper plate, by immersing the heated plate in a mineral oil, and it discourages characterized. In this known method, which aims at the complete reduction of the black copper oxide layer, great care must be taken, as the temperatures of the copper plate and the oil bath must be precisely maintained. Because of the somewhat violent reduction, a destruction of the red copper oxide layer lying under the black copper oxide layer is to be feared, which would make the entire rectifier plate unusable. This disadvantage of the known process is so great that it has hitherto been impossible to produce large quantities of copper oxide rectifiers economically. According to the invention, this disadvantage is eliminated in that the reduction of the black copper oxide layer is only carried out to such an extent that a layer of black copper oxide remains. This results in a destruction of red Kupferoxydulschicht is certainly prevented, and the reduction can be carried out under less ^ 0 sharp temperature conditions. This black copper oxide layer has a layer of pure copper on its outside and is also so thin that it does not impair the good rectifying effect of the plate.
Zur Reduktion der schwarzen Kupferoxydschicht in reines Kupfer kennt man verschiedene Verfahren. Das im nachstehenden beschriebene Verfahren der Erfindung ist jedoch zu diesem Zweck besonders deswegen vorteilhaft, weil dadurch die Reduktion nur auf die Außenseite der Schicht beschränkt wird.Various methods are known for reducing the black copper oxide layer in pure copper Procedure. However, the method of the invention described below is related to this Purpose especially advantageous because it allows the reduction only to the outside of the Layer is limited.
Man erhitzt ein Stück Kupferblech, das eine Stärke von etwas weniger als 1 mm haben kann, bis es hellrot glühend ist. Dann nimmt man es aus der Heizzone heraus und läßt es teilweise abkühlen. Bei dieser Abkühlung findet eine Oxydation des Kupfers statt. Gerade wenn die Glüherscheinung des Kupfers aufhört, wird es in g0 Öl eingetaucht. Auf diese Weise entsteht eine Gleichrichterplatte, in der über dem reinen Kupfer sich- eine Schicht röten Kupferoxyds ■ befindet und in der eine schwarze Kupferoxydschicht über dem roten Kupferoxyd liegt, g5 während auf der Außenseite der schwarzen Kupferoxydschicht sich eine Schicht reinen Kupfers befindet.A piece of copper sheet, which can be a little less than 1 mm thick, is heated until it is bright red-hot. Then take it out of the heating zone and let it cool down partially. During this cooling process, the copper is oxidized. Just when the glow of the copper ceases, it is immersed in g 0 oil. In this way, a rectifier plate in which sich- to pure copper a layer redden copper oxide ■ located and in which a black copper oxide layer is above the red copper g, 5 while a layer of pure copper is on the outside of the black copper oxide.
öle, welche eine derartige Reduktion des schwarzen Kupferoxyds nach der Ausglühung und teilweisen Luftkühlung vornehmen, sind Transformatoröle, Paraffinöle, farblose Öle, wie sie zu medizinischen Zwecken verwendet werden, Olivenöle und selbst dünnflüssige feine Schmieröle. Auch eine Emulsion aus Öl und Wasser eignet sich zu diesem Zweck. Man ist also in der Wahl eines passenden reduzierenden Ölesoils which have such a reduction in the black copper oxide after annealing and make partial air cooling, transformer oils, paraffin oils, colorless oils, such as they are used for medicinal purposes, olive oils and even thin, fine lubricating oils. An emulsion of oil and water is also suitable for this purpose. So you are in the choice of a suitable reducing oil
ίο nicht beschränkt. Im allgemeinen kann man sagen, daß brennbare Kohlenwasserstoffe oder selbst Kohlehydrate die Reduktion herbeiführen, doch scheint es, als ob dünnflüssigere Öle besonders zur Reduktion der Oberfläche ohne tiefergehende Reduktion geeignet sind. Alkohol und Glycerin können auch benutzt werden, haben jedoch das Bestreben, diese Reduktion zu gründlich durchzuführen, namentlich wenn sie in reinem Zustand verwendet werden. ·ίο not restricted. In general you can say that combustible hydrocarbons or even carbohydrates bring about the reduction, but it seems as if thinner oils are used especially to reduce the surface are suitable without any deeper reduction. Alcohol and glycerin can also be used will, however, endeavor to carry out this reduction too thoroughly, namely when used in their pure state. ·
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK109362D DE537123C (en) | 1928-05-05 | 1928-05-06 | Process for the manufacture of copper oxide rectifiers |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEK0109362 | 1928-05-05 | ||
| DEK109362D DE537123C (en) | 1928-05-05 | 1928-05-06 | Process for the manufacture of copper oxide rectifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE537123C true DE537123C (en) | 1931-10-30 |
Family
ID=25984638
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEK109362D Expired DE537123C (en) | 1928-05-05 | 1928-05-06 | Process for the manufacture of copper oxide rectifiers |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE537123C (en) |
-
1928
- 1928-05-06 DE DEK109362D patent/DE537123C/en not_active Expired
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