44results about How to "Prevent a short circuit" patented technology

The present invention provides a production method for a sintered metal-ceramic layered compact, comprising steps of: filling and layering a metal powder and a ceramic powder, or filling and layering a metal powder, a mixed powder of a metal powder and a ceramic powder, and a ceramic powder; forming a green compact of the layered powders by compacting the layered powders; and sintering a layer including the metal of the green compact at a temperature of lower than a melting point of the metal by heating by irradiation of microwaves in a non-oxidizing atmosphere.

Provided is an anisotropic conductive film, containing: an insulating layer formed of an insulating resin composition; and a conductive particle-contained layer containing a photo and thermal curing resin composition and conductive particles, the conductive particles being aligned into a monolayer in a portion adjacent to an interface with the insulating layer, in which the conductive particle-contained layer has a degree of cure which is gradually lowered in a thickness direction of the conductive particle-contained layer, from the side where the conductive particles are present to the side where the conductive particles are not present.

An electrical motor includes a commutator attached to one side of an armature in an axial direction, and a cover structure member attached to the other side of the armature. The cover structure member includes a cover and plural terminals protruding from an outer peripheral portion of the cover toward the armature. In the electrical motor, by attaching the cover structure member to the armature, the other side of the armature in the axial direction is covered by the cover, and the terminals of the cover structure member are fitted to terminals of coils of the armature. Generally, the cover structure member is made of metal. Therefore, the cover structure member is attached to the armature to have a clearance between a through hole portion of the cover and a shaft, so that the cover is electrically insulated from the shaft.

A method for manufacturing a substrate having built-in components prevents a short circuit caused by the spread of solder or conductive adhesive. Land regions to connect a circuit component and a wetting prevention region surrounding the land regions are formed on one primary surface of a metal foil. Terminal electrodes of the circuit component are electrically connected to the land regions using solder, and an uncured resin is disposed on and pressure bonded to the metal foil and the circuit component, so that a resin layer in which the circuit component is embedded is formed. Subsequently, a wiring pattern is formed by processing the metal foil. The wetting prevention region is a region obtained by roughening or oxidizing one primary surface of the metal foil so as to reduce solder wettability.

A method for manufacturing a substrate having built-in components prevents a short circuit caused by the spread of solder or conductive adhesive. Land regions to connect a circuit component and a wetting prevention region surrounding the land regions are formed on one primary surface of a metal foil. Terminal electrodes of the circuit component are electrically connected to the land regions using solder, and an uncured resin is disposed on and pressure bonded to the metal foil and the circuit component, so that a resin layer in which the circuit component is embedded is formed. Subsequently, a wiring pattern is formed by processing the metal foil. The wetting prevention region is a region obtained by roughening or oxidizing one primary surface of the metal foil so as to reduce solder wettability.

The present disclosure relates to a solenoid of an electromagnetic valve where the number of processes can be reduced and breaking of a conductive wire can be suppressed in a simple structure, and the solenoid of the electromagnetic valve according to the present disclosure comprises a conductive wire; a bobbin having a tubular winding portion where the conductive wire is wound around in a coil shape and a flange portion disposed on both end portions of the winding portion; a terminal portion which is disposed on the flange portion and protrudes in a planar shape in a direction perpendicular to the central axis of the bobbin on a radially outer side than the winding portion relative to the central axis, and in which two terminals are provided on a distal end portion side; and two wall portions which are disposed on both sides of the terminal portion in a width direction, stand upright in a central axis direction and face each other, wherein both end portions of the conductive wire are drawn out from the bobbin to the terminal portion, directed toward a radially outer side from a winding portion side of the two wall portions and electrically connected to the terminals.

A packaging substrate and a method for fabricating the same are proposed, including: providing a substrate body having a first surface and an opposing second surface, wherein the first surface has a plurality of flip-chip solder pads and wire bonding pads and the second surface has a plurality of solder ball pads; forming a first and a second solder mask layers on the first and second surfaces respectively and forming openings in the first and second solder mask layers to expose the flip-chip solder pads, the wire bonding pads and the solder ball pads; forming first bumps on the flip-chip solder pads; and forming an electroless Ni / Pd / Au layer on the first bumps and the wire bonding pads by electroless plating, wherein the electroless Ni / Pd / Au layer has a thickness tolerance capable of meeting evenness requirements for fine pitch applications.

Provided is an anisotropic conductive film, containing: an insulating layer formed of an insulating resin composition; and a conductive particle-contained layer containing a photo and thermal curing resin composition and conductive particles, the conductive particles being aligned into a monolayer in a portion adjacent to an interface with the insulating layer, in which the conductive particle-contained layer has a degree of cure which is gradually lowered in a thickness direction of the conductive particle-contained layer, from the side where the conductive particles are present to the side where the conductive particles are not present.

A rechargeable battery is provided such that the positive electrode comprises lead, the negative electrode zinc, and the electrolyte is an aqueous solution of an alkali metal bisulfate. Upon discharge, lead dioxide is reduced to lead sulfate, zinc is oxidized to zinc oxide, and the electrolyte is converted to an alkali metal hydroxide. The reactions are reversed when the battery is charged.

Disclosed is a wire connecting device for a vehicle, preferably a hybrid vehicle, including six individual bus bars for connecting two 3-phase AC sub-devices to a main device, in which the bus bars are divided in to a first unit terminal unit and a second unit terminal unit each composed of a U-pole bus bar, a V-pole bus bar, and a W-pole bus bar, predetermined ends of the U-pole bus bar, the V-pole bus bar, and the W-pole bus bar of the first unit terminal unit bend to a side, and predetermined ends of the U-pole bus bar, the V-pole bus bar, and the W-pole bus bar of the second unit terminal unit bend to the other side.

The present invention relates to a cluster assembly and an electric compressor comprising the same and, more particularly, to a cluster assembly which has an improved insulation structure and is convenient to install, and an electric compressor comprising the same. More specifically, the cluster assembly comprises: three terminals; a detachable cluster including first to third coil fixing portions each having a coil insertion hole into which a coil end is insertedly formed therein, and first to third terminal receiving portions having a space formed therein so as to be spaced apart from the first to third coil fixing portions by a predetermined distance in the longitudinal direction of the coil and receive the terminals; and a cluster body which is coupled to one side surface of an electric motor in an axial direction and is formed hollow in the center thereof along the outer circumferential surface of a stator and which includes a cluster insertion portion formed corresponding to the shape of the detachable cluster so that the detachable cluster can be inserted in a horizontal direction.

A manufacturing method of a clad board includes: sticking a releasing film to a pre-preg sheet; forming a non-through-hole or through-hole in the pre-preg sheet including the releasing film; filling the hole with conductive paste; peeling off the film; and heating and pressing a metal foil onto the pre-preg sheet. The clad board has a smooth face formed on one face or both the faces of the pre-preg sheet, so that the conductive paste is restrained from spreading in an interface between the pre-preg sheet and the releasing film. This structure can avoid short-circuit between circuits and prevent insulating reliability from lowering. As a result, an yield rate is improved, and a reliable circuit board is obtainable.

A manufacturing method of a clad board includes: sticking a releasing film to a pre-preg sheet; forming a non-through-hole or through-hole in the pre-preg sheet including the releasing film; filling the hole with conductive paste; peeling off the film; and heating and pressing a metal foil onto the pre-preg sheet. The clad board has a smooth face formed on one face or both the faces of the pre-preg sheet, so that the conductive paste is restrained from spreading in an interface between the pre-preg sheet and the releasing film. This structure can avoid short-circuit between circuits and prevent insulating reliability from lowering. As a result, an yield rate is improved, and a reliable circuit board is obtainable.

A battery including: a battery case having a bottom, a side wall, and an upper opening; an electrode assembly; an electrolyte; and a sealing plate covering the upper opening of the battery case accommodating the electrode assembly and the electrolyte, the electrode assembly including a positive electrode, a negative electrode, and a separator interposed between the positive electrode and the negative electrode, a gasket is interposed between an opening-edge portion of the battery case and the sealing plate, a first resistive layer is disposed between the opening-edge portion of the battery case and the gasket, or a second resistive layer is disposed between the sealing plate and the gasket. The first or second resistive layer contains a mixture of a particulate inorganic oxide and a binder. This configuration makes it possible to prevent a short circuit between the battery case and the sealing plate even when the gasket is broken.