GB936442A - Improvements in or relating to methods of manufacturing ceramic capacitors - Google Patents
Improvements in or relating to methods of manufacturing ceramic capacitorsInfo
- Publication number
- GB936442A GB936442A GB15559/62A GB1555962A GB936442A GB 936442 A GB936442 A GB 936442A GB 15559/62 A GB15559/62 A GB 15559/62A GB 1555962 A GB1555962 A GB 1555962A GB 936442 A GB936442 A GB 936442A
- Authority
- GB
- United Kingdom
- Prior art keywords
- metal
- films
- sintered
- stacked
- ceramic
- 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
Classifications
-
- C—CHEMISTRY; METALLURGY
- C04—CEMENTS; CONCRETE; ARTIFICIAL STONE; CERAMICS; REFRACTORIES
- C04B—LIME, MAGNESIA; SLAG; CEMENTS; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDING MATERIALS; ARTIFICIAL STONE; CERAMICS; REFRACTORIES; TREATMENT OF NATURAL STONE
- C04B35/00—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products
- C04B35/01—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics
- C04B35/46—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates
- C04B35/462—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates
- C04B35/465—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates
- C04B35/468—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates
- C04B35/4682—Shaped ceramic products characterised by their composition; Ceramics compositions; Processing powders of inorganic compounds preparatory to the manufacturing of ceramic products based on oxide ceramics based on titanium oxides or titanates based on titanates based on alkaline earth metal titanates based on barium titanates based on BaTiO3 perovskite phase
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B1/00—Conductors or conductive bodies characterised by the conductive materials; Selection of materials as conductors
- H01B1/20—Conductive material dispersed in non-conductive organic material
- H01B1/22—Conductive material dispersed in non-conductive organic material the conductive material comprising metals or alloys
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01B—CABLES; CONDUCTORS; INSULATORS; SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING OR DIELECTRIC PROPERTIES
- H01B3/00—Insulators or insulating bodies characterised by the insulating materials; Selection of materials for their insulating or dielectric properties
- H01B3/002—Inhomogeneous material in general
- H01B3/004—Inhomogeneous material in general with conductive additives or conductive layers
-
- 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
- H01G4/08—Inorganic dielectrics
-
- 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
- H01G4/30—Stacked capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Materials Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Ceramic Engineering (AREA)
- Inorganic Chemistry (AREA)
- Structural Engineering (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- Dispersion Chemistry (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Ceramic Capacitors (AREA)
Abstract
Relates to a method of manufacturing ceramic capacitors having a high capacity per unit volume, in which self-supporting plastic films are manufactured from individual dispersions of ceramic raw materials and of powdery electrode metal in solutions of an organic binder, a plurality of such films being stacked into an assembly and the assembly then being subjected to a thermal treatment, whereby the organic binder is removed and both the ceramic raw materials and the electrode metal are sintered together. In the method the assembly comprising the stacked films is calendered in the plastic state to a reduced thickness still <PICT:0936442/IV(a)/1> suitable for handling, sections thereof are formed into capacitors and the thermal treatment is carried out subsequently. A suitable ceramic material dispersion consists of a mixture of BaCO3, TiO2 and MgCO3 sintered in a reducing medium and then dispersed in a solution of polystyrene and dioctylphalate in trichlorethylene. Such a composition may be used as the dielectric in conjunction with a metal dispersion containing nickel as the electrode metal. An alternative ceramic mixture consists of BaCO3 and TiO2 together with La2O3 sintered in an oxidizing medium and dispersed in a similar medium to that used before. Such a composition is suitable for use with dispersions of refractory precious metals such as palladium or platinum. Plastic films are obtained from these dispersions by evaporating the solvent, and are then stacked together, an appropriate number of dielectric films 1 (Fig. 1) intervening between two metal films 2 and 3. The stack is then calendered between metal rollers at a temperature at which the metal is sufficiently plastic. Numbers of these rolled out elements may be stacked together to form complex arrangements, contact layers applied to the sides of the stack connecting together appropriate metal layers, and the whole sintered. Rolled or flat capacitors may be finally produced.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL264087 | 1961-04-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB936442A true GB936442A (en) | 1963-09-11 |
Family
ID=19753003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB15559/62A Expired GB936442A (en) | 1961-04-26 | 1962-04-24 | Improvements in or relating to methods of manufacturing ceramic capacitors |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT247991B (en) |
| CH (1) | CH417770A (en) |
| ES (1) | ES276741A1 (en) |
| GB (1) | GB936442A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1291674B (en) * | 1965-04-26 | 1969-03-27 | Du Pont | Precious metal paste for the production of ceramic multiple capacitors |
| US4450502A (en) * | 1982-03-30 | 1984-05-22 | Itt Industries, Inc. | Multilayer ceramic dielectric capacitors |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102012217168A1 (en) * | 2012-09-24 | 2014-04-17 | Siemens Aktiengesellschaft | Method for producing a capacitor and capacitor |
-
1962
- 1962-04-24 GB GB15559/62A patent/GB936442A/en not_active Expired
- 1962-04-24 AT AT334362A patent/AT247991B/en active
- 1962-04-24 ES ES276741A patent/ES276741A1/en not_active Expired
- 1962-04-24 CH CH490962A patent/CH417770A/en unknown
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1291674B (en) * | 1965-04-26 | 1969-03-27 | Du Pont | Precious metal paste for the production of ceramic multiple capacitors |
| US4450502A (en) * | 1982-03-30 | 1984-05-22 | Itt Industries, Inc. | Multilayer ceramic dielectric capacitors |
Also Published As
| Publication number | Publication date |
|---|---|
| AT247991B (en) | 1966-07-11 |
| CH417770A (en) | 1966-07-31 |
| ES276741A1 (en) | 1962-12-01 |
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