DE736806C - Process for the manufacture of copper oxide rectifiers - Google Patents
Process for the manufacture of copper oxide rectifiersInfo
- Publication number
- DE736806C DE736806C DES147119D DES0147119D DE736806C DE 736806 C DE736806 C DE 736806C DE S147119 D DES147119 D DE S147119D DE S0147119 D DES0147119 D DE S0147119D DE 736806 C DE736806 C DE 736806C
- Authority
- DE
- Germany
- Prior art keywords
- copper oxide
- graphite
- intermediate layer
- manufacture
- colloidal
- 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 13
- 239000005751 Copper oxide Substances 0.000 title claims description 13
- 229910000431 copper oxide Inorganic materials 0.000 title claims description 13
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 238000000034 method Methods 0.000 title claims description 4
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 15
- 229910002804 graphite Inorganic materials 0.000 claims description 8
- 239000010439 graphite Substances 0.000 claims description 8
- 239000007788 liquid Substances 0.000 claims description 6
- VZGDMQKNWNREIO-UHFFFAOYSA-N tetrachloromethane Chemical compound ClC(Cl)(Cl)Cl VZGDMQKNWNREIO-UHFFFAOYSA-N 0.000 claims description 6
- 239000003208 petroleum Substances 0.000 claims description 5
- 238000005507 spraying Methods 0.000 claims description 5
- 239000002184 metal Substances 0.000 claims description 4
- 229910052751 metal Inorganic materials 0.000 claims description 4
- 239000005871 repellent Substances 0.000 claims description 3
- 230000001680 brushing effect Effects 0.000 claims description 2
- 230000008020 evaporation Effects 0.000 claims 1
- 238000001704 evaporation Methods 0.000 claims 1
- 239000010410 layer Substances 0.000 description 7
- 239000000725 suspension Substances 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- -1 For example Substances 0.000 description 1
- 210000003608 fece Anatomy 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000000126 substance 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
- H01L21/16—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
- H01L21/167—Application of a non-genetic conductive layer
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/21—Circular sheet or circular blank
Landscapes
- Engineering & Computer Science (AREA)
- Life Sciences & Earth Sciences (AREA)
- Biotechnology (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)
- Application Of Or Painting With Fluid Materials (AREA)
- Carbon And Carbon Compounds (AREA)
Description
Gegenstand der Erfindung ist ein Verfahren zur Herstellung von Kupferoxydulgleichrichtem, bei denen zwischen der Oberfläche der Kupferoxydulschiciht und einer durch Aufspritzen beigestellten Metallelektrode eine elektrisch gut leitende Zwischenschicht angeordnet ist, die zugleich ein sicheres Festhaften der aufgespritzten Metallelektrode gewährleistet. Man hat bisher für solche Zwecke eine Suspension von fein verteiltem Graphit, beispielsweise in der Form des sog. Aquadag, in Wasser verwendet. Es hat sich jedoch gezeigt, daß bei Trockengleichrichtern., die auf diese Weise hergestellt waren, in Räumen, in welchen die Gleichrichter Dämpfen oder starker Luftfeuchtigkeit ausgesetzt sind, wie z. B. in Garagen und Kellerräumen, der elektrische Kontakt mit der Kupferoxyduloberfläche sich rasch verschlechtert, da die Zwischenschicht physikalische und chemische Veränderunigen erleidet.The invention relates to a method for the production of copper oxide rectifiers, in which between the surface of the Copper oxide layer and a metal electrode provided by spraying on electrically conductive intermediate layer is arranged, which at the same time a secure adhesion guaranteed by the sprayed-on metal electrode. So far, a suspension of finely divided material has been used for such purposes Graphite, for example in the form of the so-called Aquadag, used in water. It has however, it has been shown that in dry rectifiers manufactured in this way, in Rooms in which the rectifiers are exposed to vapors or high humidity are, such as B. in garages and basements, the electrical contact with the copper oxide surface rapidly deteriorates as the interlayer undergoes physical and chemical changes.
Der erwähnte Nachteil wird nun vollständig vermieden, wenn bei den eingangs bezeichneten Kupferoxydulgleichrichtern nach der Erfindung Graphitpulver in kolloidaler Verteilung in einer wasserabweisenden Flüssigkeit, .beispielsweise Erdöl von hohem Entzündungspunkt oder Tetrachlorkohlenstoff, suspendiert, entweder durch Aufpinseln oder durch Aufspritzen auf die Kupferoxyduloberfläche aufgebracht und an die Flüssigkeit zum Verdunsten gebracht wird. Zweckmäßig beträgt die Konzentration des Graphitp.ulvers S bis i5°/oj und zwar wird man die höheren Konzentrationsgrade wählen, wenn die Zwischenschicht nicht durch Aufpinseln, wie es bei Aquadag üblich ist, sondern durch Aufspritzen hergestellt wird.The disadvantage mentioned is now completely avoided if in the case of the aforementioned Copper oxide rectifiers according to the invention graphite powder in colloidal distribution in a water-repellent liquid, For example, petroleum with a high ignition point or carbon tetrachloride, suspended, either by brushing or by spraying onto the copper oxide surface is applied and brought to the liquid to evaporate. Appropriate amounts the concentration of the graphite powder S up to 15 ° / oj, namely one becomes the higher Choose concentration levels if the intermediate layer is not brushed on like it is common at Aquadag, but is made by spraying.
Eingehende Versuche haben gezeigt, daß Kupferoxydulgleichrichter, bei denen die gut leitende Zwischenschicht zwischen derKupferoxydulobernäche und einer aufgespritztenIn-depth tests have shown that copper oxide rectifiers, where the good conductive intermediate layer between the copper oxide surface and one sprayed on
Metallelektrode in der vorstehend angegebenen Weise hergestellt" wird, eine " wesentlich größere Haltbarkeit in feuchten oder dampferfüllten Räumen aufweisen als solche, die gemaß dem bisher üblichen Verfahren mit einer Suspension von kolloidalem Graphit in Wasser behandelt wurden. So zeigten z. B. zehn Kupferoxydulgleichrichterscheiben von etwa 121Z2XSOCm Oberfläche bei Anwen-Metal electrode produced in the manner indicated above "has a" significantly greater durability in damp or steam-filled rooms than those which have been treated with a suspension of colloidal graphite in water according to the previously customary process. For example, B. ten copper oxide rectifier disks of about 12 1 Z 2 XSOCm surface for use
>o dung einer Aquadagzwischenschicht, wenn sie zu einer Säule von etwa i,2 cm Stärke auf-einandergeschichtet und vier Tage einer feuchten Atmosphäre ausgesetzt wurden, durchschnittlich eine Widerstandserhöhung in der Stromdurchlaßrichtung von etwa 900/«, bei Belastung mit 121Z2 Ampere, während zehn gleichartige Kupferoxydulgleichrichterscheiben gleicher Größe, die mit einer Graphitsuspension in Erdöl von hohem Entzündungs-> o dung a Aquadagzwischenschicht when stacked on-a column of about i, 2 cm thickness and four days were exposed to a humid atmosphere, an average of an increase in resistance in the Stromdurchlaßrichtung of approximately 90 0 /, 'when loaded with 12 1 Z 2 Ampere, while ten similar copper oxide rectifier disks of the same size, which with a graphite suspension in petroleum of high ignition
ao punkt behandelt wurden, in der gleichen Zeit nur eine Widerstandserhöhung von ungefähr °/0 aufwiesen. Außerdem ergaben sich bei Glihihhibao treated spot, at the same time showed only an increase in resistance of about ° / 0th Also surrendered at Glihihhib
/
den/
the
zuerst genanntenfirst mentioned
g Gleichrichterscheibeng rectifier disks
im Durchschnitt wesentlich größere Abweichungen der in der Vorstromrichtung gemessenen Widerstandswerte, als es bei der Graphitsuspension in Erdöl der Fall war. Im ersten Fall wurde eine Größenordnung dieser Abweichungen von i3O°/0, im zweiten nur von I4o/o, bezogen auf den ursprünglichen Widerstand, ermittelt. Es ist also einleuchtend, daß die Anwendung der Zwischenschicht aus in Erdöl suspendiertem kolloidalem Graphit sowohl eine größere Konstanz als auch eine größere Gleichförmigkeit der Widerstandswerte in der Durchfluß richtung ergibt, als dies mit Aquadagzwischen schichten möglich ist. Ähnliche Verbesserungen lassen sich mit einer Zwischenschicht aus kolloidalem Graphit erzielen, welches in Tetrachlorkohlenstoff suspendiert ist.on average, significantly larger deviations in the resistance values measured in the forward current direction than was the case with the graphite suspension in petroleum. In the first case, a magnitude of this deviation from i3O ° / 0, the second only by I4 o / o, based on the initial resistance determined. It is therefore evident that the use of the intermediate layer of colloidal graphite suspended in petroleum results in both greater constancy and greater uniformity of the resistance values in the flow direction than is possible with Aquadag intermediate layers. Similar improvements can be achieved with an intermediate layer of colloidal graphite suspended in carbon tetrachloride.
Der vorstehend angegebene technische Fortschritt ist vor allem dem Umstand zuzuschreiben, daß bei dem Gegenstand der Erfindung eine leicht verdampfbare Flüssigkeit zur Bildung der Graphitsuspension verwendet wird, die frei von hygroskopischen Bestandteilen ist.The technical progress indicated above is mainly due to the fact that in the subject matter of the invention an easily evaporable liquid is used to form the graphite suspension that is free from hygroscopic components.
Claims (2)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US358699A US2359107A (en) | 1940-09-27 | 1940-09-27 | Copper-oxide rectifiers |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE736806C true DE736806C (en) | 1943-06-29 |
Family
ID=23410682
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DES147119D Expired DE736806C (en) | 1940-09-27 | 1941-09-27 | Process for the manufacture of copper oxide rectifiers |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2359107A (en) |
| DE (1) | DE736806C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1063712B (en) * | 1952-12-03 | 1959-08-20 | Frako Kondensatoren Und Appbau | Method for establishing contact with dry rectifiers of the open-space design |
-
1940
- 1940-09-27 US US358699A patent/US2359107A/en not_active Expired - Lifetime
-
1941
- 1941-09-27 DE DES147119D patent/DE736806C/en not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1063712B (en) * | 1952-12-03 | 1959-08-20 | Frako Kondensatoren Und Appbau | Method for establishing contact with dry rectifiers of the open-space design |
Also Published As
| Publication number | Publication date |
|---|---|
| US2359107A (en) | 1944-09-26 |
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