Abstract: This invention provides a method for assembling the thermal module. According to the invention, the fin can be combined with a heat pipe and a joint material to form the thermal module. The fin includes a main body having a through hole and an feeding hole communicating with each other. The heat pipe passes through the through hole. The joint material is injected into the feeding hole to fill a clearance between the heat pipe and the inner wall of the through hole. In addition, when the fin is combined with the heat pipe, the feeding hole is above the through hole, the joint material flows downward along the clearance, and the clearance gradually narrows along a flowing direction of the joint material.

Abstract: A battery cooling structure which cools a battery equipped on a vehicle, the battery cooling structure including: a fan sending an air to cool the battery; and a sound insulation wall including a sound insulation material which insulates noise wherein the sound insulation wall faces an exhaust outlet of the fan.

Abstract: A heat dissipating device includes a fan, a heat sink, and a heat conductive member. The heat sink includes a base having opposite first and second faces. The first face includes a plurality of fins extending from a peripheral area thereof. The fins define a compartment in which the fan is mounted. The second face includes a central section corresponding to the compartment receiving the fan. The second face further includes a peripheral section corresponding to the peripheral area from which the fins extend. The heat conductive member is mounted to the second face of the base and adapted to be in contact with a heat-generating member. The heat conductive member includes at least one heat pipe extending from the central section to the peripheral section.

Abstract: A heat dissipation device includes an electric fan having a fan impeller with a hub and a heat sink. A plurality of main blades and subsidiary blades extend radially and outwardly from the hub and alternate with each other. The electric fan forms an air inlet and an air outlet. The main blades have connecting portions on the hub which are extended towards a center of the hub at the air outlet. The subsidiary blades have a smaller radial length than the main blades. The subsidiary blades each have a connecting edge on the hub which is extended toward the center of the hub adjacent to the air outlet. The fan impeller drives more air to the center of the air outlet, whereby more air can flow to a center of the heat sink.

Abstract: A heat dissipation device includes a heat sink and a cooling fan. The heat sink includes a substrate and a plurality of fins. The cooling fan includes a fan housing defining an air inlet and an air outlet at two opposite sides thereof, and an impeller received in the fan housing and mounted to a supporting base provided at the air inlet. The air outlet is positioned adjacent to the heat sink. The impeller includes a hub, a plurality of main blades and auxiliary blades. The hub includes a top wall located at the air outlet and a sidewall extending from the top wall. The main blades extend radially and outwardly from the sidewall. The auxiliary blades located on the top wall extend from a center of the top wall towards an outer periphery of the top wall.

Abstract: Provided are a heat control device and a method of manufacturing a heat control device. The method of manufacturing a heat control device having an envelope used as a path of a working fluid that absorbs/dissipates heat by a latent heat transfer and a groove formed in an inner wall of the envelope and generating a capillary force moving the working fluid, wherein the method includes: providing first and second templates each including a protruding portion having a shape corresponding to the groove; forming first and second deposition films by depositing metal on the first and second templates; stacking first and second metal plates respectively on the first and second deposition films; burning out the first and second templates from the first and second metal plates; and forming the envelope by combining the first and second metal plates.

Abstract: A forming method for a heat dissipating structure is provided. According to the method, an extrudate is formed by extrution molding, wherein the extrudate includes protruding bending portions extending in parallel. Fins are extruded monolithically on the bending portions. One or more cut channels are formed by cutting the fins and the extrudate with a cutting tool. The cutting tool cuts the fins for forming a notch on each fin at first, and then cuts the bending portions for forming a cut-through slot on each bending portion, wherein each cut-through slot is formed for cooling air flowing through two side of the extrudate. By cutting the bending portions and the fins by the cutting tool at the same time, a large number of cut-through slots are formed in despite of the existence of the fins, and the performance of heat dissipation is enhanced.

Abstract: The invention involves positive contact to create a binding structure between tank and header of an automotive radiator, specifically the upper tank (3), with the upper header (4), and the bottom tank (9) with the bottom header (11). There is a first metal hem 3.1 of downward extension from the lower edge of the upper tank (3), corresponding to the first metal hem there is a second metal hem 4.1 of vertically downward extension from the outer edge of the upper header (4). Said first hem tightly encloses the second hem thereby allowing a complete and positive bound by brazing. There is a third metal Hem 9.1 of upward extension from the upper edge of the bottom tank (9), corresponding to the third metal hem there is a fourth metal hem 11.1 of vertically upward extension from the outer edge of the bottom header (11). Said third hem tightly encloses the said fourth hem thereby allowing a complete and positive bound by brazing.

Abstract: An oil cooler for use in a motor vehicle radiator tank is made of a plurality of plate assemblies, each comprising a pair of plate shells. Each plate shell has opposite upstanding walls, and the plate shells are nested so that the upstanding walls are in contact and sealed along their peripheries. The plate shells have deformed walls forming serpentine passageways in thermally conductive communication with the plate shells to transfer heat from the oil, and deformed projections extending into the interior space in passageways cause turbulence in the oil. Fittings for passage of oil into and out of the oil cooler have a flange with a groove and an elastomeric gasket with an elliptical cross section to seal the fittings to the tank wall opening. The oil cooler is mounted within the tank so that it is located approximately equidistant from the front and rear tank walls.

Abstract: The invention relates to a heat exchanger in modular construction, in particular for facilities operated using large load and/or temperature changes, having an external shell and a number of heat exchanger modules, wherein each heat exchanger module, which is either a preheater, evaporator, or superheater module, has an entry manifold, and exit manifold, and meandering pipes, through which the heat-absorbing medium, in particular water, flows from the entry manifold to the exit manifold, and the heat exchanger modules are also situated in a shared external shell, so that they have the same heat-dissipating medium flowing around them, the evaporator modules being connected in parallel via a steam-collecting drum situated outside the external shell.

Abstract: Embodiments of the inventive technology may provide a leaked fluid detection and response system in one aspect, and in another aspect, an environmental enclosure for at least a component of such leaked fluid detection system. Various embodiments of the leaked fluid detection and response system may provide wireless communication of detected leaks and a PLC that automates response and provides information regarding the presence of a leak. Enclosures may, in various embodiments, comprehensively surround enclosed components, thermally insulate enclosed components, include a leaked fluid capture basin, be aerodynamically streamlined, and/or be vermin-tight.

Abstract: The present invention relates to a method of forming downhole apparatus. The method comprises disposing a plastics material (26) on a reinforcing apparatus (24) to form a body (12) having a bore extending through the body. The reinforcing apparatus (24) provides reinforcement of the plastics material (26) and the thus formed body (12) is configured to provide, when in use, standoff between downhole components, with the reinforcing apparatus being configured to at least one of contract and expand.

Abstract: A downhole inspection tool for observing conditions in the harsh environment of a well bore. An embodiment of the tool comprises a high frequency camera, which operates in the millimeter wave frequency range with the capability of seeing through opaque environments. In use, the tool system provides pictures of conditions downhole for use by operators attempting to repair and/or remove broken downhole equipment by being able to observe the actual downhole conditions that exist. Furthermore, the system can be used to inspect the inside of a well casing or tubing for the presence of cracks, frac holes, slots, slits, protruding structures, stuck hardware, environmental conditions, etc.

Abstract: An apparatus (3) for use when gathering parameters from a well flow in a petroleum well (1) in order to be able to evaluate the flow and productivity or injectivity of the well is described, the apparatus (3) including: —a semi-rigid rod (5) arranged in a manner allowing it to sense the temperature profile of the well (1); —at least two mutually spaced-apart measuring devices and/or fluid phase indicators (9) attached to the semi-rigid rod (5); and —at least one pressure sensor (11) arranged in a manner allowing it to sense pressure in the well (1), whereby the amounts of water, oil and gas from one or more formation sections may be quantified. A method of using the apparatus is also described.

Abstract: Subsea apparatus and a method for sampling and analysing fluid from a subsea fluid flowline proximate a subsea well is provided, wherein the apparatus comprises at least one housing located in close proximity to said subsea fluid flowline; at least one fluid sampling device located in the housing in fluid communication with a said subsea fluid flowline for obtaining a sample of fluid from the subsea fluid flowline; at least one fluid processing apparatus located in the housing in fluid communication with said subsea fluid flowline for receiving and processing a portion of the fluid flowing through said fluid flowline or in fluid communication with the fluid sampling device, for processing the sample of fluid obtained from the subsea fluid flowline for analysis, while keeping the sample of fluid at subsea conditions; a fluid analysis device located in the housing, the fluid analysis device being in fluid communication with the fluid processing device and/or with the fluid sampling device, the fluid analysis de

Abstract: The present invention relates to device for increasing the production flow in a production tubing, comprising at least one inlet for adding a fluid medium and means to provide the added fluid at an angle ? between 90 and zero degrees with a longitudinal axis of the tubing. This effect is further enhanced by means for rotating the added fluid medium. A method for increasing the production flow in a production tubing is also disclosed.

Abstract: Disclosed herein is a shrouded tubular device that includes but is not limited to a tubular member, such as a screen joint; a shroud surrounding at least a portion of the tubular, the shroud is at least a two-piece shroud; and a shim in the annulus between the tubular member and the shroud. By way of example only, the shroud may be located directly radially inward from the joint of two of the shroud pieces. Also disclosed herein is a method for making a shrouded tubular device.

Abstract: Methods for producing substantially round, spherical and sintered particles from a slurry of a calcined, uncalcined or partially calcined raw material having an alumina content of more than 55% by weight, and a mullite growth promoter in an amount of from about 2 to about 10% dry weight of the total solids in the slurry. Methods for using such substantially round, spherical and sintered particles in hydraulic fracturing operations.

Abstract: Apparatus and methods for selectively and safely reversing flow in coiled tubing used for wellbore cleanouts are disclosed. One apparatus includes a section of coiled tubing having a main flow channel, at least two flow-preventing valves in the section of coiled tubing, each adapted to close the main flow channel upon attempted flow reversal; and at least one actuator adapted to deter closing of the flow-preventing valves. This abstract allows a searcher or other reader to quickly ascertain the subject matter of the disclosure. It will not be used to interpret or limit the scope or meaning of the claims. 37 CFR 1.72(b).

Abstract: A method for the controlled delivery of a fracturing fluid to a well bore comprises formulating an aqueous base fluid such that it meets or exhibits desired physical and chemical characteristics for an optimal fracturing fluid. The formulation of the aqueous base fluid max involve commingling one or more sources of waste water with a source of fresh water followed by controlled injection of one or more additives. This process is substantially completed prior to delivering the aqueous base fluid to the well site. This allows the delivery of an optimal volume of the aqueous base fluid with homogeneously blended additives to the well bore.

Abstract: This invention relates to methods for stimulating oil production from well by pumping reactive stimulation fluids from the well into the formation. The methods are particularly relevant to cold heavy oil production. This invention provides methods of stimulating production from a formation surrounding a well, comprising pumping a fluid from the well into the formation so as to create a hydraulic fracture, wherein the fluid contains one or more reactive species that destabilise cohesive forces in the formation matrix, and allowing the fluid to leak of into the formation and react with the formation matrix so as to produce a destabilised zone in the formation around the location of the fracture such that formation fluids and sand particles can be produced from the formation through the zone and into the well. The methods preferably comprise selecting the fluid so as to produce an at least partially unconsolidated formation matrix in the destabilised zone.

Abstract: A dart may include a foam body, a filtering material at least partially covering the foam body, and a mandrel. The foam body may surround the mandrel.

Abstract: In combination, the loose tube flying lead includes: a) a pair of improved cobra head assemblies, each being able to receive a variety of different stab-plates with minimal modification; b) a pair of bend limiters, one extending from each cobra head assembly and c) an elongate bundle of non-constrained interior conduits surrounded by an over-hose, the over-hose being connected to each bend limiter. The over-hose may rotate independently of the bend limiters and the cobra head assemblies.

Abstract: A guide system includes a flexible pipe and a plurality of bend restrictor members disposed along the flexible pipe. The bend restrictor members define a first channel and are operable to limit a degree of bending present in the first channel. An apparatus for interfacing with a subsea well includes a flexible pipe extending from a surface vessel to the subsea well. A plurality of bend restrictor members is disposed along the flexible pipe and defines a first channel. The bend restrictor members are operable to limit a degree of bending present in the first channel. Coil tubing extends from the surface vessel to the subsea well through the first channel.

Abstract: Embodiments of the invention relate to a gripping apparatus for supporting a tubular. The gripping apparatus may include a housing, a slip assembly disposed in the housing, and a leveling ring operable to move the slip assembly in the housing. The gripping apparatus may further include a guide member and a mating member operable to couple the slip assembly to the leveling ring. The longitudinal movement of the leveling ring directs the mating member along the guide member to radially displace the slip assembly relative to the housing.

Abstract: The instant patent application discloses, among other things, a sand management system comprising an upper sand management portion and a lower sand management portion and an extendable leak-off tube. When the leak-off tube is in a fully retracted position, the leak-off tube is securely releasably engaged with upper sand management portion and when the leak-off tube is in a fully extended position, it is securely releasably engaged with the lower sand management portion. Also disclosed herein is a method for dehydrating a slurry in an area between an upper sand management portion and a lower sand management portion. The method includes installing a leak-off tube between the upper sand management portion and the lower sand management portion and securely releasably connecting the leak-off tube to the lower sand management portion.

Abstract: A method of selectively actuating well tools includes the steps of: selecting a well tool for actuation by current flow in one direction through a set of conductors; and selecting another well tool for actuation by opposite current flow through the set of conductors. A system includes multiple control devices that control which well tool is selected for actuation in response to current flow in at least one conductor set. A current direction in the conductors selects a certain well tool for actuation. A method of using n conductors to selectively actuate n*(n?1) well tools includes the steps of: arranging the conductors into n*(n?1)/2 sets; connecting the conductor sets to respective groups of the well tools; and controlling direction of current flow through at least one of the sets of conductors, thereby selecting at least one well tool in the respective group of the well tools for actuation.

Abstract: An automatic flow restrictor includes a movement sensor that detects undesired movement of a firefighting apparatus relative to a support surface and automatically reduces the flow of fluid through the apparatus to thereby reduce reaction forces acting upon the apparatus. The sensor may be a slidable member or an actuatable lever, for example, that detects movement of the apparatus along or away from a support surface, and actuates an adjuster to restrict the flow of fluid until the forces are balanced and the apparatus stops moving relative to the support surface.

Abstract: A combination of a cover and a sprinkler head. The sprinkler head includes a fusible linkage mounted within a frame and having a protruding portion. The cover includes a first member adjacent to the protruding portion of the fusible linkage. The first member has a first connecting end and a first fastening end opposite the first connecting end. A second member is opposite to the first member and has a second connecting end and a second fastening end opposite the second connecting end. The first and second connecting ends are coupled to each other. A first projection and a second projection extend from the first member toward the second member and are in spaced relation to each other for receiving the protruding portion of the fusible linkage.

Abstract: Tools and techniques for suppressing fires. Such tools might transmit a signal that generates one or more waves (which might be mechanical waves, electromagnetic waves, and/or the like) that is sufficient to disrupt the relationship between the electrons in a fire and the ionized nuclei to which those electrons are attracted. The resulting repulsion (between the nuclei and/or the electrons) that form the plasma of the fire can serve to disperse the plasma, thereby suppressing the fire.

Abstract: The instant invention relates to a fire extinguishing apparatus. Particularly to an apparatus that includes at least one container that includes a fire retardant gel. The gel is formed from dehydrated superabsorbent polymer and water. The pre filled containers include at least one control valve or frangible portion to release the fire retardant to extinguish the fire.

Abstract: The present invention provides a novel configuration for agricultural row units that feature soil finishing assemblies. This configuration of the finishing assembly provides a simple adjustment of the height of the finishing assembly to enhance usability and flexibility of the row unit. The improved adjustment mechanism enhances user control over the vertical distance between the finishing wheels/discs and the ground opening assembly. In an exemplary embodiment, soil finishing assembly is pivotally coupled to the row unit frame via a height adjustment assembly. The height adjustment assembly may feature a biasing member and other components to allow adjustment of one end of the pivotal coupling of the adjustment assembly within the row unit assembly.

Abstract: A system (202) is disclosed with a frame (204) with a plurality pivotable connected frame sections (214, 216, 220, 502), the frame (204) being operable in a number of positions (206, 302) and changeable between these, and a length adjustable connection (232) between at least one of the frame sections and a dragging device (212), wherein the length adjustable connection (232) is arranged in an angle (234) and a length (244) of the length adjustable connection is controlled so as to obtain drag forces created by working the soil, and the length adjustable connection (232) is so arranged that changing the length (244) of the length adjustable connection at least partly supports and at least partly powers a change of the position (206, 302) of the frame in order e.g. to provide an improved relation between a transport width and a soil working width of the frame (204) and for supporting, controlling and changing between multiple positions (206, 302).

Abstract: Disclosed is a method for screwing in and tightening a screw connection (1) to a predetermined tightened level (2), especially a predetermined torque level (2) or a predetermined pretension level, with the aid of a hand-held screwing tool (3) comprising a regulated drive unit (4) and/or control functionality, particularly an electric nut runner (3). A tightening phase (B-C-D), during which the screw head rests against the supporting surface (6) of the screw connection (1), starts following a screwing phase (A). In order to improve said method, the speed (N) of the screwing tool (3) is increased to an output speed (7) for the tightening phase (B-C-D) within an acceleration time (8) in the tightening phase (B-C-D) and is lowered within a delay time (9) prior to or until reaching the predetermined tightened level (2).

Abstract: The present invention relates to a combustion-type pile-driving device, comprising a cylinder having a closed upper end and an open lower end, which cylinder is freely movable as a piston with respect to an anvil which seals the lower end of the cylinder, a ram which is freely movable as a piston with respect to the cylinder and the anvil in the cylinder, and an injection device for injecting a fuel into a combustion chamber formed between the ram and the anvil in the cylinder for driving the ram upward by combustion of the injected fuel, wherein a second injection device is provided for injecting fuel into a second combustion chamber formed in the cylinder between the ram and the closed upper end of the cylinder for driving the ram downward and driving the cylinder upward by combustion of the injected fuel. The invention further relates to a method for using such a pile-driving device.

Abstract: The invention relates to a percussion device having a body and a percussion piston moving therein, pressure fluid spaces in the rear and front ends of the percussion piston and pressure fluid channels for feeding pressure fluid into the percussion device. The percussion piston and the control valve comprise surfaces, which, when aligned, substantially close the pressure fluid flow from the pressure fluid space locating behind the percussion piston in front of the control valve, whereby the produced pressure displaces the control valve to another position.

Abstract: Anti-EMI material arrangement, comprising a plurality of electrically conducting elongated particles, which are irregularly distributed within a substrate, forming a web of electrically conducting paths, so that incoming electromagnetic waves are attenuated. Optionally, spherical particles are added. Furthermore, optionally, absorbing particles are added to dissipate energy of electromagnetic waves.

Abstract: The invention relates to a microstructure apparatus. A microstructure apparatus according to one of the invention includes a first substrate having a surface on which a microstructure is disposed; a second substrate having a surface opposing the microstructure; and a sealing member that bonds the opposing surfaces of the first substrate and the second substrate and that encloses and seals the microstructure. The sealing member includes a brazing metal containing a filler.

Abstract: A device for grounding electrical components arranged in a chain has a grounding point at ground potential and an actuation device connected to the grounding point for connecting the electrical components to the grounding point. In order to provide such a device, with which a simple, safe, and durable grounding is obtained, the actuation device is constructed as a moving part extending in a longitudinal direction and movable in a longitudinal direction. The moving part has an electrically conducting grounding section connected to the grounding point and an electrically nonconducting insulating section arranged on the end of the moving part facing away from the grounding point.

Abstract: An assembly including a ground bar for coupling to a ground, a conductive contact for electrically connecting a wire to the ground bar, and a switch for selectively disconnecting the conductive contact from the ground bar to thereby selectively disconnect the wire from the ground bar when the wire is electrically connected to the conductive contact. The assembly may include a plurality of conductive contacts and a plurality of switches for selectively disconnecting an associated conductive contact from the ground bar. A method of using an assembly having a ground bar, a conductive contact, and a switch includes electrically connecting a wire to the conductive contact, and actuating the switch to selectively disconnect the conductive contact from the ground bar to thereby selectively disconnect the wire from the ground bar without electrically disconnecting the wire from the conductive contact.

Abstract: An umbilical cable, particularly adequate for subsea exploration, contains two or more three-phase power supply circuits, each consisting of three conductors grouped in a trefoil configuration, each conductor including a metal core surrounded by an insulating sheath, each conductor being provided with an individual shielding whose cross-section is less than, equal to or greater than that of the core. Advantageously, each insulating sheath may be surrounded by a layer of semiconductor material. Filler spacers made of an insulating material, preferably polyethylene, may be used to aid in the positioning of the trefoils. The cable provides an economy of material, an increased flexibility, a reduction of the diameter of the finished cable and a substantial decrease of manufacturing time as compared with cables produced in accordance with the known art. A manufacturing method for an umbilical cable is also disclosed.

Abstract: An electric insulated wire according to the present invention is formed by applying a first insulation coating made from polyimide resin having a repeating unit represented as in chemical formula (1) to an electric conductor directly or through an insulation layer made from a second insulation coating, after which the first insulation coating is baked, the polyimide resin including a quadrivalent aromatic group (X) having an aromatic ether structure, a bivalent aromatic group (Y1) having an aromatic ether structure, and a bivalent aromatic group (Y2) having a fluorene structure; the first insulation coating has a compound ratio (Y1/Y2) of the bivalent aromatic group having an aromatic ether structure to the bivalent aromatic group having a fluorene structure within a range from 30/70 to 80/20, when represented as a mole ratio.

Abstract: An electrical conductor may be provided. The electrical conductor may comprise a conductor core comprising a plurality of core strands. Each of the plurality of core strands may comprise a first material. The electrical conductor may further comprise a plurality of conductor strands wrapped around the core. The plurality of conductor strands may comprise a second material. An elongation of the second material may be greater than 1% and may be less than an elongation percentage of the first material or may be equal to the elongation percentage of the first material.

Abstract: This device for wire cable trays including longitudinal warp wires and transverse weft wires has a base (2) with a mounting face (16) by which it is mounted on the cable tray and fixing elements. It further includes:—at least one trough-shaped longitudinal housing intended to receive a first wire of the cable tray and produced in the mounting face,—at least one bearing surface undercut relative to the mounting face, this surface extending perpendicularly to the longitudinal housing and being disposed parallel to the back of the longitudinal housing at an intermediate level between the back of that housing (18) and the mounting face, and—at least one transverse cut-out corresponding to each intersection between a longitudinal housing and a bearing surface, this cut-out extending from one edge of the mounting face to a longitudinal housing.

Abstract: Disclosed are a printed circuit board and a method for manufacturing the same. The method, which includes providing a base substrate in which a thermoplastic resin layer is formed; forming a circuit pattern on the thermoplastic resin layer by discharging a conductive ink by an inkjet method; curing the circuit pattern through the heating at a temperature that is lower than a melting point of the thermoplastic resin layer; sintering the circuit pattern through the heating; and burying at least a part of the circuit pattern in the thermoplastic resin layer by heating the thermoplastic resin layer and compressing the circuit pattern toward the thermoplastic resin layer, can provide a printed circuit board and a method for manufacturing the same, in which a fine circuit pattern can be formed by an inkjet method and the adhesive force between the circuit pattern and the base substrate can be improved.

Abstract: A high-quality resistor pattern and conductor pattern is formed on an external surface of a multilayer ceramic substrate by an ink jet method. A composite sheet including a first ceramic green layer and a shrinkage-retardant layer is formed, and a resistor pattern and a conductor pattern are formed on the first ceramic green layer of the composite sheet by an ink jet method. Subsequently, a plurality of second ceramic green layers are stacked with the composite sheet such that the shrinkage-retardant layer of the composite sheet defines an outermost layer, thus forming a multilayer composite including an unfired multilayer ceramic substrate and the shrinkage-retardant layer. Then, the multilayer composite is fired, and the shrinkage-retardant layer is removed to obtain a sintered multilayer ceramic substrate.

Abstract: In a laminated glass sheet with a fixing device introduced into a through-hole for objects, particularly for antennas, the through-hole is made up of holes of different sizes in two rigid sheets of the lamination, and the fixing device includes at least two parts introduced into the through-hole, pressing against surfaces around the edge of the through-hole, which surfaces are situated one facing the other. The two parts of the fixing device press from both sides against the surfaces around the edge surrounding the smaller hole made in the sheet, in that region of the walls of a smaller hole that exhibits an edge compression stress that is increased by heat treatment by comparison with the remainder of the surface of the sheet.

Abstract: The present invention is intended to provide an enhanced conductor module capable of reducing a joint area between conductors, and a method for preparing the same. The conductor module has a pair of flattened circuits each of which comprises a rectangular shaped conductors, a pair of sheeted coverings disposed on both sides of the conductor, and at least one hole having a diameter smaller than a width of the conductor, and formed in the coverings so as to expose one surface of the conductor to outside the flattened circuit. The conductor of one flattened circuit is joined to the conductor of the other flattened circuit via the hole by application of electromagnetic welding.

Abstract: An LTCC substrate structure with at least one contact element for connecting a wire conductor, which has a first metallization (20) arranged on and/or in the ceramic substrate for electrical connection to the wire conductor, wherein the first metallization (20) preferably contains silver or a silver alloy. To avoid via posting or a plating process, a diffusion barrier layer covering the first metallization or metal layer, which diffusion barrier layer (22) covering the first metallization (20), which diffusion barrier layer is produced with a locally acting application method, and a second metal layer (24) arranged on the diffusion barrier layer (22) are provided, wherein the second metal layer (24) preferably contains gold and/or platinum and/or an alloy that has at least one of these elements. The invention also discloses a production method for an LTCC substrate structure of this type.

Abstract: A circuit structure of a circuit board includes a dielectric layer, a number of first circuits, and a number of second circuits. The dielectric layer has a surface and an intaglio pattern. The first circuits are disposed on the surface of the dielectric layer. The second circuits are disposed in the intaglio pattern of the dielectric layer. Line widths of the second circuits are smaller than line widths of the first circuits, and a distance between every two of the adjacent second circuits is shorter than a distance between every two of the adjacent first circuits.