Abstract: Method and apparatus for generating layers on a carrier film wherein a plurality of glow polymerization layers and intervening metal layers are applied to a carrier foil 3 on a continuous process. The carrier foil is passed over a drum 4 and conducted through a first vacuum system wherein glow polymerization electrodes apply glow polymerization layers to the foil then the foil passes through a vacuum lock into a second vacuum chamber wherein a metallization device 10 is situated so as to apply a metallization layer. Then the foil passes through a second vacuum lock to the first vacuum chamber wherein a second polymerization layer is applied over the metallization layer. A diaphragm strip 19 also passes over the foil and is continuously used during the polymerization and metallization steps.

Abstract: Only those dielectrics which have a correspondingly low sintering temperature are suitable for the production of ceramic multi-layer capacitors having intermediate electrodes consisting of non-noble metals, such as nickel and cobalt. Suitable are ceramic masses comprising alkaline earth zirconates, wherein up to 10 mole % of the zirconium may have been replaced by titanium; iron or nickel or manganese being added as doping agents to the stoichiometrical perowskite basic compound having a composition of alkaline earth metal (Zr.sub.1-x Ti.sub.x)O.sub.3 where O<x.ltoreq.0.07 and the whole assembly being sintered in a reducing atmosphere.

Abstract: A metallized polypropylene film with improved surface impregnation properties for dielectric fluids is disclosed. The film has one predetermined textured surface and is characterized by a space factor of above about 5% and has an electrical conductive metallic coating on one surface.

Abstract: An apparatus for processing an electrical apparatus, such as a capacitor, containing a polymeric dielectric material. The interior of the capacitor casing, which is at room temperature, is initially connected to a vacuum source to evacuate the interior of the casing and when a vacuum sensing unit indicates that the required vacuum has been obtained, a degassed dielectric liquid is supplied to the interior of the casing. A positive pressure is applied to the liquid in the casing to fully impregnate the polymeric layer. When the desired capacitance is obtained, the impregnation is complete and the unit is sealed.

Abstract: For the manufacture of capacitor rolls for wound capacitors, the impregnation is performed by subjecting the dielectric foils on their stock rolls to an impregnating treatment in vacuum. The capacitors manufactured from the capacitor rolls thus obtained have a comparatively high breakdown voltage. The manufacture of the complete capacitor is no longer interrupted for an impregnation treatment.

Abstract: A method of processing an electrical apparatus, such as a capacitor, containing a polymeric dielectric material. The interior of the capacitor casing, which is at room temperature, is initially connected to a vacuum source to evacuate the interior of the casing and when a vacuum sensing unit indicates that the required vacuum has been obtained, a degassed dielectric liquid is supplied to the interior of the casing. A positive pressure is applied to the liquid in the casing to fully impregnate the polymeric layer. When the desired capacitance is obtained, the impregnation is complete and the unit is sealed.

Abstract: The specification describes a gallium aluminum arsenide-gallium arsenide-germanium solar cell and fabrication process therefor wherein the deposition of a layer of gallium aluminum arsenide establishes a first PN junction in the GaAs of one bandgap energy on one side of a gallium arsenide substrate, and the deposition of a layer of germanium establishes a second PN junction in Ge of a different bandgap energy on the other side of the GaAs substrate. The two PN junctions are responsive respectively to different wavelength ranges of solar energy to thus enhance the power output capability of a single wafer (substrate) solar cell. Utilization of the Group IV element germanium, as contrasted to compound semiconductors, simplifies the process control requirements relative to known prior art compound semiconductor processes, and germanium also provides a good crystal lattice match with gallium arsenide and thereby maximizes process yields.

Abstract: An impregnated electrical capacitor employing a dielectric which at least in part comprises plastic foils, in which the dielectric is expanded by an impregnating agent to substantially eliminate objectionable gaps filled with air or impregnating material whereby the breakdown strength provided by the dielectric foils is not impaired. In producing such capacitor, the temperature during and after impregnation and the degree of winding compression or tightness may be varied to provide desired control of the expansion and insure complete impregnation and control of the final volume, as compared with the original, of the capacitor structure.

Abstract: This invention pertains to a method of depositing a silicon oxide, such as silicon dioxide, layer on a substrate by utilizing a glow discharge in oxygen and a dielectric precursor having the formula ##STR1## wherein x is an integer of 1 to 4 and each R is independently selected from the group consisting of H, --CH.sub.3, and --C.sub.2 H.sub.5.

Abstract: A dielectric thin layer consisting of polymerized perfluoro-2-butene:(C F.sub.3 -C F=C F-C F.sub.3).sub.npresenting very good characteristics for production of single or multi-layer capacitors, obtained with a rapid deposition by glow discharge in an a.c. electrical field. The glow discharge is carried out in the gaseous phase of perfluoro-2-butene under highly reduced pressure and an a.c. voltage of 300 volts, the maximum rate of layer formation (0.7 micron per minute) being obtained for a frequency of 13.56Mc/s, at a temperature of 0.degree. C. under a pressure of 0.1 Torr when the useful power of the glow discharge is of 5 to 10 watts.

Abstract: Aluminum foil for an electrode of an electrolytic capacitor is disclosed. The foil comprises at least one core layer adapted to prevent the growth of pits by electrolytic etching, and outer layers formed on both surfaces of the core layer. A large number of etching pits are produced in the outer layers. In a modification, the core layer contains more iron than the outer layers. Again in a modification, the core layer is covered or contained with aluminum oxides or hydroxides.

Abstract: A process for coating electronic elements comprises the steps of (1) forcibly impregnating an element with a liquid thermosetting resin undercoat, (2) depositing a powdered coating material on the element as a topcoat by electrostatic fluidized bed dip coating the element before the undercoat is dry, and (3) curing the resin by heating.

Abstract: Between about 0.01 and 10.0% by weight of an antioxidant, and between about 0.1 and 10% by weight of an epoxide are added to a liquid aromatic ester prior to refining or purification of the ester and prior to the use of the ester to impregnate a capacitor.

Abstract: A method for fabricating a wound type foil capacitor including the steps of forming a wound capacitor from two electrodes and a dielectric, the dielectric including at least one synthetic plastic foil, and heating the wound capacitor to a temperature corresponding to the shrinking temperature of at least one stretched foil. The stretched foil is adjacent to another foil, and the latter is at least shrunk to a lesser extent than the first foil within a shrinking range including that lesser extent up to a completely extended state. The wound capacitor is additionally maintained at the temperature corresponding to the shrinking temperature of the stretched foil until folds develop in the other foil, and then impregnated with an impregnating fluid.

Abstract: This invention provides a method for forming a dense, electrically conductive, metallic coating having a sufficient adherence without use of an adhesive on an insulating film, sheet, or plate such as plastic film, plastic rigid sheet, or ceramics by the cluster ion plating procedure which comprises heating a crucible containing a vapor deposition metal at a temperature of 200.degree. to 2,500.degree. C in a vacuum of 1 .times. 10.sup.-4 Torr. to 1 .times. 10.sup.-7 Torr.

Abstract: The unique, relatively nonflammable, environmentally safe, insulating oil comprises a saturated hydrocarbon oil having a molecular weight of about 500 to about 700, and a fire point above 200.degree. C. The electrical equipment comprises an oil-sealed tank, a unique insulating oil filling said tank, and an electrical component such as a conductive coil immersed in said insulating oil. A method of filling the oil-sealed tank of an electrical apparatus with the unique insulating oil also is disclosed.

Abstract: Before impregnation with fluid a capacitor roll, or a transformer core and coil, is filled with a monomeric gas that is thereafter polymerized, in situ, in a plasma discharge. Formation of solid polymer occurs at the regions of most intense electric field, thereby raising both corona-start and operating voltage for these devices.

Abstract: Metallized plastic films having deposited metal layers on both surfaces and being adapted for use as dielectric films, piezoelectric films or pyroelectric films are disclosed. At least a portion of the metal layer deposited on one surface of the film has a relatively increased thickness of 700 A or more and at least a portion of the metal layer deposited on the other surface has a relatively reduced thickness of 600 A or less. The increased thickness and reduced thickness portions are positioned opposite to one another. The thin layer permits rapid self recovery of localized dielectric breakdown, while the relatively thick layer provides better utility for the electric uses to which the film is put.

Abstract: A method and device for obtaining uniform vapor deposition of one or more inorganic metallic photoconductive materials onto a substrate by importing under vacuum a slow translational movement of one or more heated crucibles and/or of the substrate being coated.

Abstract: A sintered ceramic article which comprises internal electrodes and/or conductors is formed by producing a sintered ceramic body that has areas of ceramic material extending to an outer face thereof, said areas having an open structure characterized by interconnected voids, and thereafter providing a conductor in said porous areas. The ceramic body may be formed by depositing, for example by screen printing, on sheets of a powdered dielectric or insulating ceramic material bonded with a temporary bond, an area of a temporarily bonded powdered ceramic material which on firing becomes porous, i.e. open-structured, consolidating a plurality of such sheets, and sintering them. Subsequently, electrodes or conductors may be provided in the open-structured areas by impregnating said areas with a metal or alloy and providing a termination electrode on the said outer face. If desired, an open-structured permeable barrier can be provided on said outer face before such impregnation.

Abstract: A process for providing a margin in a metallized resin film for a condenser element which is characterized by providing on a dielectric resinous layer a water-soluble coating layer having a pattern corresponding to a margin pattern, providing a metal deposition layer on the resinous layer including a coated part and a non-coated part and removing the water-soluble coating layer and the metal deposition layer thereon by washing with water. According to the process, a metallized resin film having an arbitrary margin pattern and a superior electrical property can be readily obtained, with completely eliminating any complexity of the procedure and disadvantage in conventional processes for providing a margin.