DE523094C - Process for the production of electrical capacitors with a dielectric which is formed from a solution of cellulose or cellulose derivatives in a thin layer on a metal foil, which represents one capacitor layer - Google Patents
Process for the production of electrical capacitors with a dielectric which is formed from a solution of cellulose or cellulose derivatives in a thin layer on a metal foil, which represents one capacitor layerInfo
- Publication number
- DE523094C DE523094C DEP52079D DEP0052079D DE523094C DE 523094 C DE523094 C DE 523094C DE P52079 D DEP52079 D DE P52079D DE P0052079 D DEP0052079 D DE P0052079D DE 523094 C DE523094 C DE 523094C
- Authority
- DE
- Germany
- Prior art keywords
- cellulose
- layer
- dielectric
- solution
- metal foil
- 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
- 239000002184 metal Substances 0.000 title claims description 14
- 239000003990 capacitor Substances 0.000 title claims description 11
- 229920002678 cellulose Polymers 0.000 title claims description 8
- 239000001913 cellulose Substances 0.000 title claims description 8
- 238000000034 method Methods 0.000 title claims description 5
- 239000011888 foil Substances 0.000 title claims description 4
- 238000004519 manufacturing process Methods 0.000 title claims description 4
- 239000000243 solution Substances 0.000 claims description 4
- 230000005684 electric field Effects 0.000 claims description 3
- 238000004544 sputter deposition Methods 0.000 claims description 3
- 239000012266 salt solution Substances 0.000 claims description 2
- 230000004048 modification Effects 0.000 claims 1
- 238000012986 modification Methods 0.000 claims 1
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000002923 metal particle Substances 0.000 description 2
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000000717 retained effect Effects 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G9/00—Electrolytic capacitors, rectifiers, detectors, switching devices, light-sensitive or temperature-sensitive devices; Processes of their manufacture
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/005—Electrodes
- H01G4/012—Form of non-self-supporting electrodes
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/14—Organic dielectrics
- H01G4/16—Organic dielectrics of fibrous material, e.g. paper
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/002—Details
- H01G4/018—Dielectrics
- H01G4/06—Solid dielectrics
- H01G4/14—Organic dielectrics
- H01G4/18—Organic dielectrics of synthetic material, e.g. derivatives of cellulose
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B15/00—Suppression or limitation of noise or interference
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Manufacturing & Machinery (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
Verfahren zur Herstellung elektrischer Kondensatoren mit einem Dielektrikum, das aus einer Lösung von Zellstoff oder Zellulosederivaten in einer dünnen Schicht auf einer Metallfolie, welche den einen Kondensatorbelag darstellt, gebildet wird Man hat elektrische Kondensatoren dadurch aufgebaut, daß ein Dielektrikum aus in einem Lösungsmittel gelösten ausgegossenem Zellstoff benutzt wird. Ein solches Dielektrikum bietet große Vorteile hinsichtlich seiner Homogenität und damit im Zusammenhang hinsichtlich seiner elektrischen Eigenschaften. Handelt es sich um Kondensatoren für niedrige Spannungen, welche ein sehr dünnes Dielektrikum benötigen, so besitzt dieses dielektrische Material den Nachteil der geringen mechanischen Festigkeit, der seiner Verarbeitung sehr im Wege steht.Process for the production of electrical capacitors with a dielectric, that from a solution of cellulose or cellulose derivatives in a thin layer is formed on a metal foil, which represents a capacitor plate Electrical capacitors have been constructed by using a dielectric made of in Poured pulp dissolved in a solvent is used. Such a dielectric offers great advantages in terms of its homogeneity and in connection with it in terms of its electrical properties. Are they capacitors? for low voltages, which require a very thin dielectric, so has this dielectric material has the disadvantage of low mechanical strength, which stands in the way of its processing.
Die Erfindung betrifft ein Verfahren zur Herstellung von elektrischen Kondensatoren mit einem Dielektrikum, das aus einer Lösung von Zellstoff oder Zellulosederivaten in einer dünnen Schicht .auf einer Metallfolie, welche den einen Kondensatorbelag darstellt, gebildet wird.The invention relates to a method for producing electrical Capacitors with a dielectric made from a solution of cellulose or cellulose derivatives in a thin layer on a metal foil that covers one capacitor layer represents, is formed.
Der zweite metallische Belag wird bei einem solchen Kondensator erfindungsgemäß auf die freie Oberfläche der Isolierschicht dadurch aufgebracht, daß ül an sich bekannter Weise aus Metallsalzlösungen eine chemisch niedergeschlagene leitende Metallschicht zur Ablagerung .auf die Isolierschicht gebracht wird.The second metallic coating is according to the invention in such a capacitor applied to the free surface of the insulating layer in that oil per se known way from metal salt solutions a chemically deposited conductive Metal layer for deposition. Is brought onto the insulating layer.
Dieses Verfahren der Aufbringung des zweiten metallischen Belages hat den Vorteil, daß der zweite Belag die dünne Isolierschicht nicht angreift und überdies an ihr gut haftet.This method of applying the second metallic coating has the advantage that the second coating does not attack the thin insulating layer and moreover adheres well to it.
Vorteilhaft kann der zweite metallische Belag auch dadurch hergestellt werden, daß in an sich ebenfalls bekannter Weise auf die freie Oberfläche der Isolierschicht eine leitende Metallschicht im elektrischen Feld aufgestäubt wird.The second metallic covering can also advantageously be produced in this way that in a manner also known per se on the free surface of the insulating layer a conductive metal layer is sputtered in an electric field.
Das Aufbringen der Metallschicht durch Zerstäubung im elektrischen Felde (Kathodenzerstäubung) hat den Vorteil, daß das aufgestäubte Metall die Unterlage nicht angreift, aber doch fest haftet, was wohl auf die elektrische Ladung der Metallteilchen zurückzuführen ist. Das Fehlen von Flüssigkeit beseitigt auch den Nachteil der Metallniederschläge aus Bädern, der darin besteht, daß Reste der Lösung oft hartnäckig zwischen den Metallteilchen zurückgehalten werden und sich bei den so dünnen Filmen nur sehr schwer entfernen lassen.The application of the metal layer by sputtering in the electrical Field (cathode sputtering) has the advantage that the sputtered metal is the base does not attack, but still adheres firmly, which is probably due to the electrical charge of the metal particles is due. The lack of liquid also eliminates the disadvantage of metal deposits from baths, which consists in that residues of the solution often stubborn between the Metal particles are retained and only very much in the case of such thin films difficult to remove.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP52079D DE523094C (en) | 1926-01-15 | 1926-01-15 | Process for the production of electrical capacitors with a dielectric which is formed from a solution of cellulose or cellulose derivatives in a thin layer on a metal foil, which represents one capacitor layer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEP52079D DE523094C (en) | 1926-01-15 | 1926-01-15 | Process for the production of electrical capacitors with a dielectric which is formed from a solution of cellulose or cellulose derivatives in a thin layer on a metal foil, which represents one capacitor layer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE523094C true DE523094C (en) | 1931-04-18 |
Family
ID=7385535
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DEP52079D Expired DE523094C (en) | 1926-01-15 | 1926-01-15 | Process for the production of electrical capacitors with a dielectric which is formed from a solution of cellulose or cellulose derivatives in a thin layer on a metal foil, which represents one capacitor layer |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE523094C (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE765703C (en) * | 1934-03-16 | 1951-07-26 | Bosch Gmbh Robert | Electrostatic wound capacitor |
| DE1048293B (en) * | 1954-12-21 | 1959-01-08 | Pickering Associates Inc | Electroacoustic transducer, in particular as a loudspeaker or microphone, based on the capacitor principle |
| DE975433C (en) * | 1950-08-05 | 1961-11-23 | Siemens Ag | Electrical capacitor for anti-interference purposes |
| DE975545C (en) * | 1949-09-20 | 1962-01-04 | Siemens Ag | Process for the production of a single-film tape for self-regenerating electrical capacitors with lacquer dielectric |
| DE976792C (en) * | 1948-10-02 | 1964-04-30 | Siemens Ag | Connection for a capacitor, in particular a wound capacitor, with a layer of lacquer as a dielectric |
| DE976861C (en) * | 1952-08-30 | 1964-06-18 | Siemens Ag | Process for the production of end-contact electrical capacitors |
-
1926
- 1926-01-15 DE DEP52079D patent/DE523094C/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE765703C (en) * | 1934-03-16 | 1951-07-26 | Bosch Gmbh Robert | Electrostatic wound capacitor |
| DE976792C (en) * | 1948-10-02 | 1964-04-30 | Siemens Ag | Connection for a capacitor, in particular a wound capacitor, with a layer of lacquer as a dielectric |
| DE975545C (en) * | 1949-09-20 | 1962-01-04 | Siemens Ag | Process for the production of a single-film tape for self-regenerating electrical capacitors with lacquer dielectric |
| DE975433C (en) * | 1950-08-05 | 1961-11-23 | Siemens Ag | Electrical capacitor for anti-interference purposes |
| DE976861C (en) * | 1952-08-30 | 1964-06-18 | Siemens Ag | Process for the production of end-contact electrical capacitors |
| DE1048293B (en) * | 1954-12-21 | 1959-01-08 | Pickering Associates Inc | Electroacoustic transducer, in particular as a loudspeaker or microphone, based on the capacitor principle |
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