39results about "Metal surface removal provision" patented technology

In a capacitor device of the present invention includes a substrate, a plurality of lower electrodes formed on the substrate, a plurality of dielectric films formed on a plurality of lower electrodes respectively in a state that the dielectric films are separated mutually, and upper electrodes formed on a plurality of dielectric films respectively, a plurality of capacitors each composed of the lower electrode, the dielectric film, and the upper electrode are arranged on the substrate respectively, and each of the dielectric films in a plurality of capacitors has a different film thickness.

A capacitor capable of being incorporated into a packaging substrate, characterized in that the capacitor comprises a high-dielectric-constant layer, and an upper electrode layer and a lower electrode layer sandwiching the high-dielectric-constant layer from the upper side and the lower side. A packaging substrate containing the capacitor, and a method for producing the same are also provided.

An electronic component has an element body and an external electrode arranged on the element body. The element body has a pair of end faces opposed to each other, a pair of principal faces opposed to each other, and a pair of side faces opposed to each other. The external electrode is formed so as to cover the end face and a partial region of the principal face and/or a partial region of the side face. The external electrode has a thick film electrode, a thin film electrode, and a plated layer. The thick film electrode is formed on the end face. The thin film electrode is formed so as to cover the thick film electrode and the partial region of the principal face and/or the partial region of the side face. The plated layer is formed outside the thin film electrode and contains Sn or an Sn alloy.

A method of manufacturing a MIM capacitor having a bottom electrode is provided by forming a metal wire including copper on a substrate. After the metal wire is formed on the substrate, a dielectric film is formed on the metal wire. A top electrode film is formed on the dielectric film, and then the top electrode film is etched to form a top electrode. A hard metallic polymer formed during the etching of the top electrode film is removed using a mixture of an oxygen gas and a fluorocarbon based gas. The lifting of the thin films is effectively prevented, and the yield of the manufacturing process for manufacturing a MIM capacitor is increased. Additionally, the MIM capacitor has a uniform capacitance because the damage to the dielectric film is prevented, and the oxidation of the bottom electrode is also prevented.

The invention discloses a six-level forming method of a medium and high voltage aluminum electrolytic capacitor anode foil. The six-level forming method comprises the main steps of carrying out high-temperature water treatment on an aluminum foil after electrolytic corrosion treatment after the aluminum foil passes through an aluminum feeder roller, carrying out first-level, second-level and third-level forming, and sequentially carrying out four-level, five-level and six-level forming after liquid feeding, wherein only one forming groove is used in the previous five levels of forming process, five forming grooves are used in the six-th level of forming process, and the three forming grooves in the middle are connected in series. The anode foil prepared by the method is high in capacity and high in bending strength. Compared with the film formed in the prior art, the film formed by using the six-level forming method has the advantages that quality is greatly improved; and the demands of the existing electrolytic capacitor on small size, high capacity and long service life are completely met.

The present invention relates to a production method and device of electronic components. The invention provides a production method of electronic components and a device thereof, in particular provide a production method and devices for winding type electronic components (particularly electrolytic capacitors), wherein the traditional tools are replaced and a laser radiation device is used to radiate the laser to an electrode foil, in order to isolate and remove an etching layer or a coating layer from the electrode foil, and holes are formed in the electrode foil, then a groove is formed in ahorizontal side facing to the electrode foil. According to the invention, it is possible to optionally set the shape of the electrode foil from which the etching layer or the coating layer is removed, and to optionally set the shapes of the holes and the groove. As a result, it is possible to expand a contacting area between a joint of the lead wire terminal and metal of the electrode foil.

The invention discloses a formation processing method for improving low-voltage formed foil water resistance. The formation processing method comprises the steps that an aluminum foil is placed in an adipic acid saline solution for dipping, the aluminum foil is taken out and then placed in an ammonium adipate and adipate water solution, the aluminum foil is taken out for washing after first-level formation, and then high-temperature treatment is carried out; then the aluminum foil is placed in an ammonium adipate and dihydric phosphate mixed water solution for second-level formation, after being taken out and washed, the aluminum foil is placed in a phosphoric acid solution for heat treatment, then high-temperature treatment and washing are carried out, finally, the aluminum foil is placed in a dihydric phosphate water solution, and the aluminum foil is taken out after third-level formation and washed and dried. The formation processing method has the advantages that product water resistance is obviously improved, storage time is prolonged, and capacitor performance is improved.

The surface treatment equipment comprises a machine body, a linear driving mechanism, a lifting mechanism, a housing device and a polishing device, the housing device is arranged at the bottom of the lifting mechanism, and the polishing device is arranged in the housing device and is close to the bottom. The dust removal device is arranged at the top of the arc-shaped housing body and is close to the conical opening, the cambered surface flow guide assembly is fixed to the inner wall of the ox horn shell and is close to the conical opening, the filter screen is fixed to the inner wall of the ox horn shell, and the cleaning device is arranged in the ox horn shell and is close to the filter screen. The invention relates to the technical field of capacitor processing equipment. According to the surface treatment equipment for the chip capacitor, the effect of removing impurities is achieved, the impurities can be removed in time, impurity deposition, polishing scratches and abrasion are not prone to occurring, the polishing quality is high, meanwhile, dust diffusion is reduced, human health is facilitated, safety and reliability are achieved, and the working efficiency and the use performance are improved.

The invention discloses a method for improving specific volume of a low pressure corrosion aluminum foil. The method comprises steps that (1), the aluminum foil is immersed in aqueous phosphoric acidsolution and washed with the water; (2), the treated aluminum foil is subjected to cloth hole etching in the aqueous solution containing hydrochloric acid, sulfuric acid, aluminum trichloride and an emulsion type polyether-siloxane copolymer silicone foam breaker and washed with the water; (3), the treated aluminum foil is subjected to medium treatment in the aqueous solution of hydrogen phosphateor dihydrogen phosphate and washed with the water; (4), the treated aluminum foil is then subjected to deep growth etching in the aqueous solution containing hydrochloric acid, sulfuric acid, aluminum trichloride and an emulsion type polyether-siloxane copolymer silicone foam breaker and washed with the water; (5), the steps (3) and step (4) are repeated for 3-6 times; (6), the treated aluminum foil is then immersed in the aqueous solution of sulfuric acid and washed with the water, the washed aluminum foil is then immersed in the triethanolamine solution and washed with the water; and (7), the aluminum foil is dried. The method is advantaged in that the specific volume of the low pressure corrosion aluminum foil can be improved.

A method of adjustment during manufacture of a capacitance of a capacitor supported by a substrate, the method including the steps of: a) forming a first electrode parallel to the surface of the substrate and covering it with a dielectric layer; b) forming, on a first portion of the dielectric layer, a second electrode; c) measuring the electrical signal between the first electrode and the second electrode, and deducing therefrom the capacitance to be added to obtain the desired capacitance; d) thinning down a second portion of the dielectric layer, which is not covered by the second electrode, so that the thickness of this second portion is adapted to the forming of the deduced capacitance; and e) forming a third electrode on the thinned-down portion and connecting it to the second electrode.

The invention discloses a production process of a high-voltage super Farad capacitor, comprising (1), material selection; (2), thermal spraying; (3), electrochemical treatment; (4), capacitor preparation. The present invention realizes a supercapacitor with a capacitor capacity of 0.47-100F under the condition of 100-800V. Since the above-mentioned requirements can be realized, its application will be extremely wide, especially for wind power, photoelectric energy storage, new energy vehicle power and laser weapons, It is of great significance for high-power military equipment such as particle beam weapons, submarines, and aerospace.

The invention relates to a method for enlarging the surface area of ultrahigh voltage electrode foil by corrosion. The method at least comprises the following steps of: selecting raw materials, performing pretreatment, washing, performing primary corrosive surface area enlarging treatment, washing, performing secondary corrosive surface area enlarging treatment, washing, performing third-time corrosive surface area enlarging treatment, washing, performing fourth-time corrosive surface area enlarging treatment, washing, performing fifth-time corrosive surface area enlarging treatment, washing, performing chemical washing, washing by pure water, and drying a finished product. By the method, the ultrahigh voltage electrode foil with high specific volume and high strength can be produced.

The invention relates to the technical field of capacitor manufacturing equipment, and provides a metallized film capacitor winding machine laser metal layer removing device which comprises a winding machine provided with a winding mechanism and at least one unwinding mechanism, and a laser removing device arranged between the winding mechanism and the unwinding mechanism. The device is used for removing a metal layer on the surface of a film in the film winding and unwinding process and comprises a Y-direction adjusting mechanism used for adjusting the position of the laser removing device in the film width direction. And the Z-direction adjusting mechanism is used for adjusting the position of the laser removing device in the film thickness direction. The device can adapt to metalized films with different widths and different thicknesses, and the applicability is improved.

The invention discloses a capacitor lead processing method which comprises the following steps: dissolving citric acid and sodium citrate in water according to a certain ratio to prepare a weak acid buffer solution; soaking the surface of the capacitor lead in a weak acid buffer solution for a first preset duration; the soaked capacitor lead is washed with clear water; carrying out alcohol degreasing and airing on the capacitor lead washed by the clear water; and carrying out hot dipping on the dried capacitor lead by using the tin-lead solder to obtain the capacitor lead with the tin-lead coating layer. Sodium citrate and citric acid in a certain proportion are dissolved in water, and the prepared weak acid buffer solution can properly and effectively treat an oxide layer on the surface of the lead, so that a new tin-lead coating layer can be coated, good weldability and electric connectivity during use are ensured, and the service life of the lead is prolonged. Meanwhile, compared with inorganic acid, the weak acid buffer solution is more environment-friendly and convenient to treat and recycle.

A multilayer ceramic electronic component includes a multilayer body including two major surfaces opposite to each other in a layer stacking direction, two side surfaces opposite to each other in a widthwise direction orthogonal or substantially orthogonal to the layer stacking direction, and two end surfaces opposite to each other in a lengthwise direction orthogonal or substantially orthogonal to the layer stacking direction and the widthwise direction, and external electrodes provided on the two end surfaces. A method for manufacturing the multilayer ceramic capacitor component includes preparing a plurality of multilayer bodies, stacking the plurality of multilayer bodies via a binder, rotating the plurality of multilayer bodies by about 90° with the lengthwise direction defining and functioning as an axis of rotation, and providing a side gap portion; and removing the binder from the multilayer body provided with the side gap portion.

The invention belongs to the technical field of tantalum capacitors, and particularly relates to a method for removing a polymer on the surface of an electrode needle for a tantalum capacitor, which comprises the following steps of: placing the electrode needle of which the surface polymer is to be removed in a soaking tank, adding enough remover into the soaking tank, soaking for 2-6 hours, and naturally airing after soaking; and fixing the naturally air-dried electrode needle on a stepping platform, and demolding the surface of the electrode needle by adopting a laser spot scanning method. The remover comprises the following components in parts by weight: 20-50 parts of a softening agent, 12-26 parts of a surfactant, 24-48 parts of inorganic acid, 2-6 parts of a coupling agent and 4-12 parts of an emulsifier. The defects in the prior art are overcome, the polymer on the surface of the electrode needle is softened through the remover, and then the polymer is removed in a laser spot mode.