DE903125C - Method of manufacturing selenium AC rectifiers - Google Patents
Method of manufacturing selenium AC rectifiersInfo
- Publication number
- DE903125C DE903125C DEW3661A DEW0003661A DE903125C DE 903125 C DE903125 C DE 903125C DE W3661 A DEW3661 A DE W3661A DE W0003661 A DEW0003661 A DE W0003661A DE 903125 C DE903125 C DE 903125C
- Authority
- DE
- Germany
- Prior art keywords
- selenium
- rectifiers
- sulfur
- rectifier
- layer
- 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
- BUGBHKTXTAQXES-UHFFFAOYSA-N Selenium Chemical compound [Se] BUGBHKTXTAQXES-UHFFFAOYSA-N 0.000 title claims description 14
- 229910052711 selenium Inorganic materials 0.000 title claims description 14
- 239000011669 selenium Substances 0.000 title claims description 14
- 238000004519 manufacturing process Methods 0.000 title description 4
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 claims description 7
- 229910052717 sulfur Inorganic materials 0.000 claims description 7
- 239000011593 sulfur Substances 0.000 claims description 7
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 6
- JPJALAQPGMAKDF-UHFFFAOYSA-N selenium dioxide Chemical compound O=[Se]=O JPJALAQPGMAKDF-UHFFFAOYSA-N 0.000 claims description 6
- 229910052742 iron Inorganic materials 0.000 claims description 3
- 239000000463 material Substances 0.000 claims 5
- 150000003839 salts Chemical class 0.000 claims 1
- 239000000203 mixture Substances 0.000 description 5
- 239000000126 substance Substances 0.000 description 3
- FAPWRFPIFSIZLT-UHFFFAOYSA-M Sodium chloride Chemical compound [Na+].[Cl-] FAPWRFPIFSIZLT-UHFFFAOYSA-M 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 229910052736 halogen Inorganic materials 0.000 description 2
- -1 halogen salt Chemical class 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 210000003127 knee Anatomy 0.000 description 1
- 239000011780 sodium chloride Substances 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
- H01L21/04—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
- H01L21/06—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 selenium or tellurium in uncombined form other than as impurities in semiconductor bodies of other materials
- H01L21/10—Preliminary treatment of the selenium or tellurium, its application to the foundation plate, or the subsequent treatment of the combination
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)
- Battery Electrode And Active Subsutance (AREA)
Description
Verfahren zur Herstellung von Selen-Wechselstromgleichrichtern Die Erfindung bezieht sich auf die Herstellung von Selen-Wechselstromgleichrichtern mit einer Grund- oder Trägerplatte, die mit einer Selen und andere Stoffe enthaltenden Schicht oder einem entsprechenden Überzug versehen ist, und mit einer auf die Oberfläche dieser Schicht aufgebrachten Gegenelektrode.Method of manufacturing selenium AC rectifiers The Invention relates to the manufacture of selenium AC rectifiers with a base or carrier plate containing a selenium and other substances Layer or a corresponding coating is provided, and with one on the surface this layer applied counter electrode.
Insbesondere bezieht sich die Erfindung auf Gleichrichter dieser Art, bei welchen die Schicht oder der Überzug, zusätzlich zu dem Selen, Selendioxyd und ein Halogensalz, wie z.B. Natriumchlorid, enthält.In particular, the invention relates to rectifiers of this type, in which the layer or the coating, in addition to the selenium, selenium dioxide and contains a halogen salt such as sodium chloride.
Wichtige elektrische Eigenschaften eines Gleichrichters dieser Art sind der Widerstand in der Vorwärtsrichtung, der Widerstand in der umgekehrten Richtung und das Gleichrichtungsverhältnis, das durch den Verlauf des Knies der Gleichrichterkennlinie bestimmt wird, d.h. die angelegte Spannung in der Vorwärtsrichtung, bei welcher eine wirksame Gleichrichtung stattfindet. Die Wirksamkeit des Gleichrichters ist im praktischen Gebrauch von diesen Eigenschaften abhängig, und alle diese Eigenschaften schwanken innerhalb weiter Grenzen entsprechend dem jeweiligen Widerstand des Gleichrichters in der umgekehrten Richtung, der außerdem von einem elektrischen Formierungsverfahren bestimmt wird.Important electrical properties of a rectifier of this type are the resistance in the forward direction, the resistance in the reverse direction and the rectification ratio, which is determined by the shape of the knee of the rectifier characteristic is determined, i.e. the applied voltage in the forward direction at which effective rectification takes place. The effectiveness of the rectifier is in practical use depends on these properties, and all of these properties fluctuate within wide limits according to the respective resistance of the rectifier in the opposite direction, which is also used by an electrical forming process is determined.
Es ist nun in der Praxis gefunden worden, daß der Widerstand in der Vorwärtsrichtung günstig beeinflußt wird, wenn man in die Selenmischung verhältnismäßig kleine Mengen gewisser anderer Stoffe einbringt, und gemäß der Erfindung wird der Mischung eine verhältnismäßig kleine Menge Schwefel von o,o4 bis o,o8% entweder allein oder in Verbindung mit anderen Stoffen mit dem Ziel zugesetzt, den Vorwärtswiderstand des Gleichrichters herabzusetzen.It has now been found in practice that the resistance in the Forward direction is favorably influenced if one is in the selenium mixture relatively introduces small amounts of certain other substances, and according to the invention, the Mix a relatively small amount of sulfur from 0.04 to 0.08% either added alone or in conjunction with other substances with the aim of increasing the forward resistance of the rectifier.
Es ist an sich bei der Herstellung von Gleichrichtern bekannt, in das Selen der halbleibenden Schicht Schwefel einzubringen, jedoch wird gemäß der Erfindung nur die obengenannte verhältnismäßig kleine Menge Schwefel angewendet.It is known per se in the manufacture of rectifiers, in to introduce the selenium of the semi-permanent layer of sulfur, however, according to the Invention only applied the above-mentioned relatively small amount of sulfur.
Bei dem typischen Beispiel der Selenzusammensetzung, die Selendioxyd und ein Halogensalz enthielt, führte der Zusatz von o,o4% Schwefel zu einer Verminderung des Vorwärtswiderstandes um ungefähr 3o%, während der Zusatz von o,o4% Schwefel und o,o2% Eisen eine Herabsetzung des Vorwärtswiderstandes um etwa 22% verursachte. Das verbesserte Verfahren gemäß der Erfindung ist jedoch nicht auf die vorstehend als Beispiel genannten Werte beschränkt; diese können je nach der Zusammensetzung der verwendeten Selenmischung geändert werden.In the typical example of the selenium composition, the selenium dioxide and contained a halogen salt, the addition of 0.04% sulfur resulted in a reduction the forward resistance by about 30%, while the addition of 0.04% sulfur and 0.02% iron caused a decrease in forward drag of about 22%. However, the improved method according to the invention is not limited to the above the values given as an example are limited; these can vary depending on the composition of the selenium mixture used.
Claims (3)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB903125X | 1942-01-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE903125C true DE903125C (en) | 1954-02-01 |
Family
ID=10687705
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEW3661A Expired DE903125C (en) | 1942-01-31 | 1950-09-21 | Method of manufacturing selenium AC rectifiers |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE903125C (en) |
-
1950
- 1950-09-21 DE DEW3661A patent/DE903125C/en not_active Expired
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