Abstract: The invention relates to a security paper for producing value documents, such as bank notes, passports, identification documents or the like, having a flat substrate (12) provided at least partly with a dirt-repellent protective layer (14) for extending the life time and fitness for circulation. According to the invention, the protective layer (14) comprises at least two lacquer layers (16, 18), a first lower lacquer layer (16) being formed by a physically drying lacquer layer applied to the substrate (12) which makes contact with the substrate (12) therebelow and closes its pores, and a second upper lacquer layer (18) being present which protects the substrate (12) from physical and chemical influences.

Abstract: Deposition of contamination by deposits of resinous material on paper making equipment is undesirable. This invention prevents or retards such contamination by treating the equipment, especially the press felts with a composition containing a polyoxyalkylene. surfactant which contains units of ethylene oxide and a higher alkylene oxide.

Abstract: A used paper processing apparatus to be place in small shop or general household, capable of holding high secrecy, friendly to the environment, and low in running cost. In a furniture size apparatus case, a pulp manufacturing section for manufacturing used paper pulp by macerating and beating the used paper, a paper making section for manufacturing recycled paper by making the used paper pulp manufactured in the pulp manufacturing section, and a control section for driving and controlling by interlocking the pulp manufacturing section and paper making section are provided, being place in a room producing used paper, and by macerating and processing the used paper by the pulp manufacturing section, leak or disclosure of confidential information or private information written or printed on used paper can be prevented effectively, and further used paper pulp is processed by the paper making section, and recycled paper is manufactured.

Abstract: An apparatus is provided that forms a solder layer on a die pad of a leadframe. Initially, a drop of the solder is deposited on the die pad, and the drop is formed into a layer by the lower surface of a tool which is moved towards the drop. The tool includes a wall which encircles the surface and is resiliently maintained in a position in which the wall encircles and projects downwardly from the surface. Thus, the lower edge of the wall contacts the die pad before the surface forms the solder drop into the layer, and encircles it, thus preventing solder from splashing out.

Abstract: A twin roll caster with the casting roll having longitudinal cooling channels extending from one shoulder portion, adjacent a side dam, to the other shoulder portion, adjacent the opposite side dam. The molten metal pool is confined by side dams that may engage the end surfaces of the shoulder portions.

Abstract: To provide a manufacturing apparatus that is capable of manufacturing metal-ceramic composite members in various shapes with high productivity, and a mold member and a manufacturing method therefore. An apparatus for manufacturing a metal-ceramic composite member was made, the apparatus including: a plurality of process regions, namely, an atmosphere replacing/heating part 11, a molten metal push-out part 21, and a cooling part 31; and a guide 48 for allowing a mold to pass through these plural process regions, molds 60 having ceramic members 86 placed therein are successively inserted into a mold inlet 43 provided in this guide 48 to pass through the guide 48 practically in a shielded state from the atmosphere, a molten metal 53 is poured thereto in the molten-metal push-out part 21, and the molten metal 53 is cooled and solidified in the cooling part 31 to join a metal and a ceramic, thereby manufacturing the metal-ceramic composite member.

Abstract: A substrate is coated by applying a first layer atop the substrate and comprising, in major weight part, a non-refractory first metal. A second layer is applied atop the first layer and comprises, in major weight part, a carbide and/or nitride of a second metal. A third layer is applied atop the second layer and comprises, in major weight part, a ceramic. The substrate may be a refractory metal-based investment casting core.

Abstract: A substrate is coated by applying an essentially pure aluminum first layer to a surface of the substrate. At least a first portion of the first layer is oxidized so as to provide a protective coating of desired properties. The substrate may be a refractory metal-based investment casting core.

Abstract: Object of this invention is to allow baffle plates with varying functions to be interchangeably mounted at a single air-conditioning system and to prevent an erroneously selected baffle plate from being mounted undetected. A unit case 3 includes a plurality of fastening structures 24 and 25 as required, each to be used in conjunction with one of the baffle plates 20A, 20B and 20C with differing functions. The baffle plates 20A, 20B and 20C each include a fastening structure that is used in conjunction with the fastening structure 24 or 25 at the unit case 3 or is used by itself when mounting the corresponding baffle plate 20A, 20B or 20C at the unit case 3.

Abstract: A floor heating system comprising: at least one modular floor heating element, including a top surface and an opposing bottom surface linked by a series of longitudinal ducts, the longitudinal ducts enabling connection with three-point connections and/or two-point connections for coupling each of the ducts to a delivery duct and to a backflow duct, respectively, for collecting and feeding back a heat transmission fluid; a delivery duct for feeding the transmission fluid; a backflow duct for collecting and feeding back the transmission fluid; two-point connections for connecting adjacent ducts; three-point connections for connecting ducts to the delivery duct or the backflow duct; an alternated application of three-point connections with at least one two-point connection which allows the reversal of the direction of the heat transmission fluid.

Abstract: A countercurrent heat exchanger includes a pair of heat exchanger cores (1, 2) with multiple tubes (11, 21) and fins (12, 22) which are arranged alternatively and next to each other in its depth direction. One end sides of the tubes (11, 21) of the inflow-side heat exchanger core (1) and the outflow-side heat exchanger core (2) is connected with a U-turn intermediate tank (3), and the other end sides are connected with the inflow-side tank (4) and the outflow-side tank (5) which are separated from each other. The inflow-side tank (4), outflow-side tank (5) and intermediate tank (3) are attached to a vehicle body side so that the heat exchanger cores (1) and (2) can expand and contract with respect to the intermediate tank (3).

Abstract: Cold plate apparatuses and methods of fabrication are provided for facilitating cooling of an electronics component. The fabrication approach includes: forming a tube with a first metal and having first and second ends with a heat transfer region disposed therebetween; positioning the heat transfer region of the tube within a mold and casting a heat sink member around the tube by contacting a second metal in molten form over the tube, wherein the first and second metals react peritectically to form an alloy layer between the tube and the heat sink member, and a metallurgical bond is formed between the tube and heat sink member with cooling of the molten second metal; and controlling casting of the heat sink member to minimize a thickness of the alloy layer to enhance a heat transfer characteristic of the metallurgical bond formed between the tube and the heat sink member.

Abstract: A flexible, self-contained active multi-phase heat spreader apparatus for cooling electronic components, the heat spreader having fluid sealed between two plates and a pumping mechanism to actuate multi-phase flow of the fluid. Thermal energy from an electronic component in contact with the heat spreader is dissipated from a core region via the working fluid to the entire heat spreader, and then to a heat sink. Surface enhancement features located between the two plates aid transfer of thermal energy from a first metal plate into the fluid.

Abstract: A fluid-cooled heatsink and backplate, for example, for an electronic power module in an automotive application are provided, the backplate formed with a set of grooves, and the heatsink formed with a set of ribs corresponding to the set of grooves and extending into and affixed to the set of grooves. Glue or adhesive material, such as silicone or silicone o-rings, may be provided between the set of ribs and the set of grooves to secure the backplate to the heatsink. A second set of ribs extending from the heatsink may also be included, such that space is allowed between each rib of the second set of ribs and the backplate. An epoxy-adhesive material may be disposed between the second set of ribs and the backplate, or the second set of ribs may be welded or partially welded. Also provided are the backplate and a method of manufacture.

Abstract: The invention relates to a heat exchanger (1), especially for motor vehicles, comprising a housing (2) and at least one pipe (3) disposed inside said housing (2). The heat exchanger is characterized in that structures (4) are provided in the area between the pipes (3) and the housing (2) and/or between the pipes (3).

Abstract: A heat-exchanger (HX) (120) utilizing a working fluid and having a high heat flux transfer capacity. The HX comprises a core (130) having a heat transfer surface (128), a length and a width. Inlet manifolds (140) and outlet manifolds (142) located alternatingly across the width of the core extend the length of the core. Interconnecting channels (144) each fluidly communicate with a corresponding outlet manifold and the two inlet manifolds located immediately adjacent that outlet manifold. Heat exchanger fin (154) in thermal communication with the heat transfer surface (128) generally defines the surface of the interconnecting channels. A pathway directs the working fluid first towards and then away from heat transfer surface (128) in a direction substantially normal to the heat transfer surface. Heat is transferred to or from the working fluid from heat transfer fin (154) as the fluid flows toward and away from the heat transfer surface.

Abstract: A heat exchanger cooling fin (401), for use in a fluid flow environment, comprising a fin plate (402) having a series of substantially mutually parallel louvres (403), each louvre (403) having a convex curved surface (404) facing in the opposite direction to each adjacent louvre (403), said series of louvres defining a nominal fluid flow path along the series over said convex curved surface (404) of each louvre (403).

Abstract: A heat exchanger joint between a pipe and a header wall defines an endless transition for conveying the heat exchange medium closely over a control surface of a radius or a chamfer between the interior surface and the pipe to reduce turbulence and pressure loss. The radiused or chamfered flow control surface expands radially as it opens axially into the interior surface of the header wall.

Abstract: A thermal module and method for controlling heat-dissipation wind amount thereof is provided. The thermal module is figured in an electronic apparatus having a first heat source and a second heat source. The thermal module includes at least a first wind outlet, a second wind outlet and a first wind-amount adjuster. The first wind outlet is for providing a first wind amount to the first heat source while the second wind outlet is for providing a second wind amount to the second heat source. The first wind-amount adjuster, disposed at the first wind outlet, is for adjusting the first wind amount according to temperature of the first heat source and the second heat source.

Abstract: A system for optimizing electrical power management in a vehicle. The system includes a HVAC device and a thermal storage device, both configured to provide heating and cooling to an occupant compartment of the vehicle. The system further includes a controller connected to an electrical storage device and an electrical generating device. The controller receives electrical power generated by the electrical generating device and directs the electrical power to satisfy the vehicle's power requirements and/or stores the electrical power in at least one of the electrical storage device and the thermal storage device. Furthermore, the controller directs at least one of the HVAC device and the thermal storage device to provide heating and cooling to the occupant compartment of the vehicle, depending on the available storage of the thermal storage unit or occupant compartment demands.

Abstract: An air conditioning system having a terminal chest to provide an optimal airflow mainly includes a first adjustable baffle in a return air inlet of each terminal chest that is openable to a desired degree to regulate second time return air volume and a corresponding first time air intake volume according to alterations of air conditioning energy requirement of individual air conditioning area. A variable speed air fan motor is provided that can automatically adjust the rotation speed to deliver optimal airflow volume to automatically balance the air conditioning energy supply with the air conditioning load, thereby to save energy and prevent cool air effect, and maintain a desired air quality.

Abstract: A cooling device controller for controlling a cooling device is provided. The cooling device controller includes: a capacitor for supplying an output voltage through a first terminal; a first switch between a first input terminal and the first terminal of the capacitor; a predetermined reference voltage applied to the first input terminal; a second switch between a second input terminal and the first terminal of the capacitor, wherein a temperature-sensing voltage is applied to the second input terminal, the temperature-sensing voltage varying according to a first sensed temperature; and a switch controller to receive a first voltage waveform having a duty ratio, the duty ratio dependent on a second sensed temperature, wherein the switch controller is operable to turn on and off the first switch and the second switch according to the duty ratio.

Abstract: A method of sealing the wall of a wellbore (1) as it is being drilled through a subterranean formation using a drill string (3) having a drill bit (4) on the lower end thereof comprises fitting to the lower end of a drill string (3) a device comprising (i) a cylindrically gathered pack of flexible tubing (6), (ii) a receptacle (5) for the gathered pack and (iii) a radially expandable locking means (8) having a first end of the tubing of the gathered pack connected either directly or indirectly thereto, and drilling a first section of wellbore, expanding the locking means (8) against the wellbore wall such that the first end of the tubing that is withdrawn from the gathered pack is locked in place in the wellbore, drilling a second section of wellbore with the movement of the drill string (3) through the wellbore causing the tubing to be withdrawn from the gathered pack (6) and to be turned inside out thereby forming a liner for the second section of wellbore.

Abstract: A gripper assembly for anchoring a tool within a downhole passage and for possibly assisting movement of the tool within the passage. The gripper assembly includes an elongated mandrel and flexible toes that can be radially displaced to grip onto the surface of the passage. The toes are displaced by the interaction of a driver slidable on the mandrel and a driver interaction element on the toes. In one embodiment, the toes are displaced by the interaction of rollers and ramps that are longitudinally movable with respect to one another. In another embodiment, the toes are displaced by the interaction of toggles that rotate with respect to the toes.

Abstract: Wellbore communication systems and methods for a wellsite having a downhole tool deployed from a rig into a wellbore penetrating a subterranean formation are disclosed. One example communication system includes a first mud pulse telemetry device positioned in a downhole tool and at least one additional non-mud pulse telemetry device positioned in the downhole tool. The example system also includes at least one of a pressure transducer or a pressure sensor adapted to detect a modulated pressure provided by at least one of the telemetry devices.

Abstract: A system includes a downhole tool adapted to be run at plural operating frequencies, a drive system to control an operating frequency of the downhole tool, and a controller to control the drive system to, in a test procedure, vary the operating frequency of the downhole tool. The controller automatically detects a resonance frequency of the downhole tool in the test procedure.

Abstract: Methods and apparatus provide for the characterization of injected fluid flow within a wellbore. Particular embodiments include injecting a slurry comprising a particulate material and a carrier fluid into an isolated wellbore annulus and acquiring composite density readings at one or more discrete locations along the annulus while depositing the particulate material. Interpreting the acquired composite density readings provides an evaluation of the placement of the deposited particulate material within the isolated wellbore annulus. A further step may include determining when the slurry reaches each of the discrete locations as indicated by increases in the composite density reading at each of the discrete locations and furthermore, acquiring a maximum composite density reading at each of the discrete locations along the tubular member as an indication of the quantity of deposited particulate material at each of the discrete locations.

Abstract: A method and apparatus is provided for reducing the purge volume of a well during purging and sampling operations. In some system embodiments, the apparatus can be retrofitted to existing small diameter wells. A further embodiment provides a method and apparatus for using direct pneumatic pressure to purge and sample small diameter wells using a removable valve. This aspect of the invention allows a direct pneumatic pressure pump with a primary valve to be withdrawn through the top of the inside to the pump's pressure holding structure without removing a riser pipe or the system's fluid inlet structure. The invention allows fitting or retrofitting small diameter wells with valves for direct pneumatic pressure purging and sampling.

Abstract: Methods and tools are described to reduce sanding including the steps of fracturing the cement sheath in a localized zone around the casing and having the fractured zone act as sand filter between the formation and openings in the casing, with the openings being best pre-formed but temporarily blocked so as to allow a conventional primary cementing of the casing. The fracturing step can also be used for remedial operation to reopen blocked formation or screens.

Abstract: A sealant composition and methods for using the same are disclosed. In an embodiment, a method of servicing a wellbore in contact with a subterranean formation is disclosed. The method comprises placing a sealing agent and a nonaqueous carrier fluid in the wellbore. The method further comprises placing a nonaqueous activating fluid in the wellbore. In addition, the method comprises contacting the sealing agent with the nonaqueous activating fluid to form a sealant composition.

Abstract: Systems and methods are provided for treating a wellbore using a loop system to heat oil in a subterranean formation contacted by the wellbore. The loop system comprises a loop that conveys a fluid (e.g., steam) down the wellbore via a injection conduit and returns fluid (e.g., condensate) from the wellbore via a return conduit. A portion of the fluid in the loop system may be injected into the subterranean formation using one or more valves disposed in the loop system. Alternatively, only heat and not fluid may be transferred from the loop system into the subterranean formation. The fluid returned from the wellbore may be re-heated and re-conveyed by the loop system into the wellbore. Heating the oil residing in the subterranean formation reduces the viscosity of the oil so that it may be recovered more easily.

Abstract: A high energy gas fracturing device, adapted to be lowered into a well. The device comprises a closed tube made of strong material, sized to fit into the well and having at least one sidewall, which defines a set of openings. A set of closure elements seal the openings in a water-tight manner. Also, a charge of propellant is located in the closed tube, the charge achieving best performance if kept dry. Finally, an ignition element contacts the charge.

Abstract: An apparatus for cleaning a wellbore casing includes an outer housing having an axial through passage between an inlet and a first outlet wherein the inlet and the first outlet are adapted for connection in a work string, the outer housing having a second outlet extending in a direction generally transversely of the through passage, an index mandrel slidably located within the outer housing and having an axial bore extending therethrough, the index mandrel being movable relative to the outer housing between a first position in which the second outlet is closed and a second position in which the second outlet is open, a ball seat located on an upper end of the index mandrel, a spring located within the outer housing and biasing the index mandrel toward the first position, a ball retainable on the ball seat to prevent flow from the inlet to the first outlet, and wherein application of a first pressure on the ball forces the index mandrel against the spring into the second position and reduction of said first pr

Abstract: An anchor handling/tug/supply (AHTS) vessel is employed to engage conductor casings with the seafloor. The conductor casings initially penetrate the seafloor to a first depth under their own weight. The conductor casings may optimally be further engaged with the seafloor to a second depth by the application of suction to the interiors thereof or by the use of a drop hammer. The conductor casings are driven to grade by a hydraulic pile driving hammer deployed from the deck of the AHTS vessel the previously deployed conductor casings to grade before being recovered to the deck of the AHTS vessel.

Abstract: The invention relates to a system for supporting a pipe string (2) to which an additional pipe element has to be connected, comprising a lifting device (1), a wedge device (3) and an abutment element (4). The invention also relates to a lifting device (1) comprising an attachment foundation (10), a lifting arm (11), which is in linked connection with the attachment foundation (10) and a replaceable tension element (14) in the form of a circular are connected to the lifting arm, where the wedge device (3) is releasable secured to the tension element (14), thus enabling the wedge device (3) to be moved by means of the lifting device (1) from an inoperative position in a position above the abutment element (4) to an operative position where the wedge device (3) abuts against the abutment element (4), thus securing the pipe string (2) by means of the wedge effect. The invention also relates to a method.

Abstract: Methods and apparatus are provided to prevent collisions between one drilling tool and another drilling tool during drilling operations. If the drilling tools reach a certain proximity to one another, a controller takes action to prevent a collision.

Abstract: A packer device and methods of use for a packer within uncased wellbore to form a complete fluid seal. The packer device includes a central mandrel body that retains a plurality of nested, telescopic expanding elements that are moveable outwardly from the mandrel body. The mandrel body and expanding elements are surrounded by a load-distributing structure as well as a sealing element, which is typically comprised of elastomer. The packer device is hydraulically actuated to urge the expansion members radially outwardly against the load-distributing structure and the sealing element. Because there are a number of discrete expansion elements, the packer device is better able to create a fluid seal within an uncased borehole with surface irregularities.

Abstract: A vibration reduction apparatus (501) for use with a hammer tool having a hammer piston (520) is shown. The hammer piston (520) is cansed to reciprocate in cylinder (530) by rotation of a gear wheel (523) about axis (524), the hammer piston (520) being mounted to the gear wheel (523) via piston arm (531) and pivot pin (522). Reciprocating motion of the hammer piston causes a flying mass (569) to be driven along cylinder (530) to impart a hammer action to a bit of the tool. The gear wheel (523) is caused to rotate about axis (524) by meshing of gear (514) on drive shaft (511) with gear teeth (532) on the periphery of gear wheel (524), the drive shaft (511) being caused to rotate by a motor (not shown) of the tool. a cam (533) is rigidly mounted around gear wheel (523), a counterweight 5219 surrounds piston cylinder (530), and a cam follower (534) is provided on counterweight 521. The cam follower 534 on counterweight 521 is urged into contact with cam (533) by means of a compression spring (535).

Abstract: A fire and/or water resistant enclosure is provided for housing an operable digital data storage device. The enclosure is a low cost, preferably molded enclosure having various embodiments for providing resistance to fire and/or water. In one embodiment, a fan cooperates with one or more hatchless ventilation passageways to cool the digital data storage device. Passageways are sized to be sufficiently small to limit the transfer of heat through those passages sufficiently to prevent damage to the data storage device and to prevent loss of data stored thereon. Another embodiment provides a water resistant pouch surrounding the data storage device which may be made of flexible foil or of finned relatively robust and non-flexible thermal conductor. The enclosure in some embodiments utilizes a fan and in some embodiments operates without a fan. Similarly, the enclosure in some embodiments utilizes movable hatches and in other embodiments is hatchless in design.

Abstract: According to one embodiment, the heat sink secured to the LSI mounted on the circuit board of an electronic apparatus has radiating plates extended substantially parallel to the circuit board, and radiating fins extended from the radiating plate to the circuit board. The radiating fins are made short to ensure space to mount other circuit components and 38 mounted on the circuit board.

Abstract: A conduit attachment apparatus is secured to an open end of a conduit for holding cables or wires. In one embodiment the conduit attachment apparatus comprises a spillway and a securement collar. The spillway is adapted to provide bend radius control to cables or wires extending out of the conduit. The securement collar is adapted to secure and remove the spillway from the conduit. In another embodiment, the securement collar can be installed without the use of tools and can rotate up to approximately 180° about the spillway.

Abstract: A liquid tight connector for terminating one end of an elongate electrical conductor includes a connector body having a rearward conduit receiving end, an opposed forward end and a central bore therethrough. A gland nut is movably secured to the rearward conduit receiving end of the body for securing the end of the conduit thereto and a sealing ring is interposed between the rearward conduit receiving end of the body and the gland nut and is supported within a receiving chamber defined therebetween. The sealing ring has a generally O-shaped cross section and is formed of resiliently deformable material. The gland nut includes an internal frusto-conical surface, which simultaneously urges the sealing ring radially inward toward the conduit and forward toward the rearward conduit receiving end of the body so as to deformably fill the receiving chamber upon the movable securement of the gland nut onto the body.

Abstract: A cable clamp includes a housing having a cavity therein with two opposed walls and an open end in communication with the cavity. A pair of wedge shaped jaws are located within the housing and are slideably movable toward and away from the opening. Each of the jaws includes a semi-cylindrical gripping surface which are adapted to move toward each other to grip a cable therebetween when the jaws move toward the opening and are able to move away from each other when the jaws move away from the opening so as to release a cable located therebetween. A spring biases the jaws toward the opening so that they are biased into the gripping position. In order to more positively hold the cable, each of the gripping surfaces includes a plurality of teeth in the form of raised segments of spiral threads. Some of the spiral threads on each of said inserts are right handed and some are left handed to help prevent rotating movement of the cable as it is being gripped.

Abstract: A winding for a linear motor, which winding has three electrical cables arranged in grooves of an elongated inductor. The three electrical cables have an electrically conductive sheath and an electrically conductive intermediate layer arranged between the sheath and an outer conductive layer. At least one metal strand of an electrically highly conductive material that has electrically highly conductive contact with the conductive sheath of the cables and serves as a grounding conductor is present over the whole length of a stator. The stator includes the inductor and the three cables, which are connected to form a three-phase winding. The intermediate layer is formed from nonwoven material that has a thickness of about 300 ?m-600 ?m and an electrical resistance of about 150 ?/m-500 ?/m. The value of the electrical resistance of the intermediate layer is greater than the corresponding resistance value of the strand used as the grounding conductor.

Abstract: There are provided a lightweight insulated electric wire capable of reducing influences of external magnetic fields while having an excellent conductivity and an excellent strength and an automobile wire harness using the same insulated electric wire. There is provided a signal electric wire including a conductor portion consisting of one or more first wires and one or more second wires, which are stranded together. The first wires are constituted by metal wires made from at least one type of metal selected from a group consisting of copper, copper alloy, aluminum and aluminum alloy. The second wires are constituted by metal wires different from the first wires and have a relative permeability of 4.0 or less. By setting the relative permeability of the constituent wires of the conductor portion to 4.0 or less, it is possible to suppress temperature rises caused by eddy current loses due to external magnetic fields, thus alleviating degradation of the insulation layer and poor insulation.

Abstract: This invention relates to an insulated power cable comprising a multi-strand cable of a plurality of bundles of uninsulated wires, and electrical insulation sheathing the cable, the electrical insulation having a thickness of from 0.0625 to 0.5 inches (0.16 to 1.3 centimeters) and comprising a plurality of layers of spirally-wrapped, creped tape, the tape being comprised of at least 50 percent by weight of an aramid material, the tape having a density of from 0.1 to 0.5 grams per cubic centimeter prior to being creped.

Abstract: Methods and apparatuses for affecting the frequency behavior of connections within a printed circuit board or an integrated circuit are disclosed. Some embodiments include a printed circuit board comprising, a plurality of conductive layers each comprising at least one conductive pad, where each conductive pad on the conductive layers includes a vacancy, and an insulating material disposed about the conductive layers such that the vacancies are at least partially filled with the insulating material.

Abstract: A wiring board is provided, where in the case where the wiring board and a piezoelectric element are connected via solder, the strength of connection in the peripheral region of the wiring board can be increased, and it is difficult for a connection defect to occur in the step of connecting the wiring board to the piezoelectric element. In addition, a manufacturing method for this wiring board is provided. The area of attaching portions 27b provided in the peripheral region of an insulating film 20 is made greater than that of attaching portions 27a provided in the inward region. In addition, the thickness of solder bumps 25b which are formed by providing solder to attaching portions 27b is made substantially the same as the thickness of solder bumps 25a which are formed by providing solder to attaching portions 27a.

Abstract: A wired circuit board that can provide an enhanced adhesion of a metal supporting board at a marginal portion of an opening formed in the metal supporting board with a simple structure to prevent stripping of the metal supporting board. In a suspension board with circuit, in order to reduce a transmission loss of a conductive pattern, a metal foil embedded in an insulating base layer is formed in a pattern comprising a first metal foil portion and a second metal foil portion surrounding the first metal foil portion spaced apart therefrom, and an opening is formed in the metal supporting board so that a marginal portion of the opening is located in a space between the first metal foil portion and the second metal foil portion.

Abstract: A multi-layer printed circuit board (PCB) is provided allowing balanced power supply to components requiring large working current. The PCB includes a plurality of layers disposed thereon. A first power area, and a second power area are separately arranged on different layers. The first power area and the second power area vertically aligned within the PCB with generally identical shapes cooperatively provide power to components requiring large working current.