Abstract: A method for producing printed wiring boards comprises the steps of perforating through holes at predetermined positions in an adhesive insulator sheet, filling the through holes with a conductive material such as a conductive paste or metal balls, transferring conductive wiring patterns that have been formed on surfaces of releasable supporting sheets onto the surfaces of the adhesive insulator sheet by heat and pressure. Simultaneously, interlayer via-connections are performed by means of the conductive material filled into the through holes.

Abstract: The present invention is a method and apparatus for efficiently placing a respective fuzz button into each of a high number of button holes on a fuzz button contactor while also efficiently filtering out defectively shaped fuzz buttons. The fuzz buttons are placed into rows of a predetermined number of button holes on the fuzz button contactor. A slot plate has the predetermined number of slots aligned as a row of slots, and fuzz buttons are placed into each of the slots of the slot plate. The present invention also includes a contactor jig having at least one row of the predetermined number of jig holes. These jig holes are disposed on the contactor jig as a mirror image of the at least one row of the predetermined number of button holes on the fuzz button contactor when the contactor jig is properly aligned with the fuzz button contactor.

Abstract: An apparatus and method for cutting pieces of material from a workpiece, such as a web of patterned fabric, which includes irregularities or which is misaligned with respect to a coordinate system of the cutting apparatus. The workpiece is spread on a cutting table where it is cut by a numerically controlled cutter in accord with an electronic marker stored in the cutter controller. The marker is matched to the workpiece and appropriate adjustments are made to the marker before the workpiece is cut. A laser, operatively connected to the controller, projects a match target onto the workpiece at a point corresponding to a selected point on the marker. The marker is then adjusted such that the selected point coincides with a desired location on the workpiece. Adjustment is achieved by electronically displacing the match target from a non preferred location to a preferred one. Software in the controller translates this displacement into appropriate adjustments to the marker.

Abstract: The present invention is directed to a golf ball having a core surrounded by an outer cover. The outer cover is formed of conventional materials such as a natural or synthetic resin and in accordance with the present invention, a plurality of hard particles is disposed within the outer cover such that a predetermined number of the hard particles protrude from an outer surface of the outer cover. Preferably, the plurality of hard particles comprises diamond particles and the plurality of diamond particles are present in the golf ball cover such that about 1% to about 40% of the total outer surface area of the outer cover is occupied by the plurality of diamond particles.

Abstract: A hand-held, material removing tool for processing sheet material, having a first abrasive body having on the outer surface thereof a material-remover for processing of sheet material, a drive device for driving the abrasive body, and a second abrasive body driven by the drive device, such that a double-sided simultaneous processing by both abrasive bodies of the sheet material arranged between the abrasive bodies is enabled.

Abstract: A method for manufacturing pressure sensing elements which have a metal membrane and a resistive thin film arranged thereon, in which a blind opening is introduced into a base element, and the resistive thin film is applied on a side of the base element facing away from the blind opening. Provision is made for a plurality of pressure sensing elements to be manufactured simultaneously in one panel, and after application of the resistive thin film onto the panel, the panel is sectioned to yield the pressure sensing elements.

Abstract: The present invention relates to a method of manufacturing a lightning arrester, the method being of the type comprising steps consisting in making a stack of varistors (100), and in forming a cover (300) made of a composite material over the stack of varistors (100), said method being characterized by the fact that the step of forming a cover (300) made of a composite material consists in placing a woven fiber fabric (310) on the outside of the stack of varistors (100) and in contact therewith, in placing a flexible outer cover (400) on the outside of the stack of varistors (100), and in injecting a material (350) suitable for impregnating the fiber fabric (310) into the annular space formed between the stack of varistors (100) and the flexible outer cover (400).

Abstract: A sensor comprises a semiconductor pellet (10) including a working portion (11) adapted to undergo action of a force, a fixed portion (13) fixed on the sensor body, and a flexible portion (13) having flexibility formed therebetween, a working body (20) for transmitting an exterted force to the working portion, and detector means (60-63) for transforming a mechanical deformation produced in the semiconductor pellet to an electric signal to thereby detect a force exerted on the working body as an electric signal. A signal processing circuit is applied to the sensor. This circuit uses analog multipliers (101-109) and analog adders/subtracters (111-113), and has a function to cancel interference produced in different directions. Within the sensor, two portions (E3, E4-E8) located at positions opposite to each other and producing a displacement therebetween by action of a force are determined. By exerting a coulomb force between both the portions, the test of the sensor is carried out.

Abstract: The present invention provides a keyboard assembling method wherein all components of the keyboard are flexible materials. First, a flexible circuit membrane with circuit and a plurality of contacts are arranged on a flexible substrate. Secondly, a flexible plate is arranged on the flexible circuit membrane, a plurality of resilient bodies integrally formed with the flexible plate are arranged and corresponding to the contacts on the flexible circuit membrane. Thirdly, a flexible cover having a plurality of integrally-formed and concave keytops is arranged on the flexible plate such that each resilient body can be placed within corresponding keytop. Finally, the peripheral of all components are tightly joined, thus completes the keyboard assembling task. The keytops are integrally formed with the flexible cover and those components are joined by radio heating, thus saves assembling time and labor. Moreover, the design of the inventive is more ergonomic.

Abstract: A flip chip integrated circuit package which provides stress relief for the solder bumps of the package. The package includes an integrated circuit that is mounted to a substrate. The integrated circuit is attached to a plurality of bond pads of the substrate by a number of corresponding solder bumps. The substrate has a first layer that is attached to a second layer. An area that is located between the layers and adjacent to the bond pads is left unattached so that a portion of the first layer can move independent of the remaining portion of the substrate. The unattached area allows the integrated circuit to “float” and expand at a different rate than the substrate when the package is thermally cycled.

Abstract: A fan speed controller of an automotive vehicle air conditioning device is usually placed in an air flow duct to be effectively cooled. Thus, compact construction of the speed controller is needed to obtain a larger air flow in the air flow duct. For this purpose, various compact resistor units for the speed controller have been proposed. However, some of them are poor in durability against shocks. In view of this, a compact resistor unit for a speed controller includes a resistor block that has a flat resistor, a flat insulating plate and a flat radiation plate which are respectively positioned against one another. The compact resistor unit further includes a holder block of molded plastic on which the resistor block is mounted. The compact resistor unit also includes a plurality of metal terminals partially embedded in the holder block, where the terminals are connected to particular portions of the flat resistor.

Abstract: A novel circuit packaging structure including a combination of printed lumped elements within a multi-layer stripline architecture is provided and methods of making the same. The lumped elements are provided by printing the individual passive elements, including interdigital capacitors and spiral inductors, onto the supporting substrate and then embedding these elements into the multi-layer stripline structure. The stripline structure consists of a signal layer sandwiched between at least two ground layers separated by two dielectric substrates of equal thickness. This ground-signal-ground approach confines the electromagnetic fields within the multi-layer structure, thereby minimizing radiation from coupling to nearby components. This approach offers a unique combination of stripline technology and printed lumped elements resulting in miniaturized radio frequency and microwave circuits at operating at frequencies well below 1 GHz, up to several GHz.

Abstract: This invention relates to a system of components to be hybridized including at least one first component (110) with first pads (114a) and with a first coefficient of expansion, and at least one second component (112) with second pads (114b) and with a second coefficient of expansion. According to the invention, at a hybridization temperature Th the pads are approximately superposable, and at an ambient temperature Ta the pads are mutually offset by a distance compensating for the differential expansion of the first and second components.

Abstract: Where an electrical connection is needed between an electric circuit on a substrate and a component with very finely spaced leads, pads are formed on the substrate at points where such connections to the circuit are to be made. A solder paste is deposited using a particular, described stencil having a thickness and apertures with specific tolerances. The component is positioned so that its leads to be attached are contiguous with corresponding pads, and the electrical connections are completed by reflowing the solder paste forming consistent and reliable electrical joints of solder alloy.

Abstract: A method for manufacturing a device to dissipate the thermal energy produced by electronic components embedded in a printed circuit card, such method consisting in depositing on the card a first layer of a first thermally conductive and electrically insulating material to cover at least the connecting tabs for the electronic components to be cooled, and putting this first layer in contact with a metallic drain connected to a thermal mass to drain the calories towards the exterior of the card, wherein the method consisting is making the drain in the form of a flexible porous metallic structure, and in depositing on the drain a second layer of a second material that adheres to the first layer through the pores of the drain to hold the latter in place on the card.

Abstract: A saw blade comprising a basic body (8) lying in a longitudinal center plane (9) and having an edge and including along its edge a group (6) of recurring teeth (1, 2, 3, . . . ), the group (6) comprising at least one unset leading tooth (1) being provided with a phase and having an effective cutting-edge section (10) and a preferably even number of trailing teeth (2, 3, . . . ). The leading tooth (1) has a larger height than all of the trailing teeth (2, 3, . . . ). All of the trailing teeth (2, 3, . . . ) have different plastic deformations at their tips (28) by displacements of material in the running direction (24) of the saw blade. Each of the trailing teeth (2, 3, . . . ) have both a positive enlarged rake angle (gamma.sub.2, gamma.sub.3, . . . ) and a reduced height (h.sub.2, h.sub.3, . . . ) with respect to the leading tooth (1) produced by different plastic deformations.

Abstract: An apparatus and method for driving a ramped drive assembly longitudinally, to drive a penetrator transversely, to cause the penetrator to penetrate and withdraw from a downhole tubular element. An anchor holds the tubing punch assembly in place in the downhole tubular element. A double piston assembly drives the drive assembly hydraulically in the downhole direction, thereby driving the ramp downhole, to force the penetrator outwardly to penetrate the tubular element. Thereafter, pulling uphole on the work string shears a shear sleeve, separating the housing of the tubing punch assembly from the work string. Further pulling on the work string partially withdraws the ramped drive assembly from the tubing punch assembly, thereby withdrawing the penetrator into the tubing punch assembly.

Abstract: A method of assembling electronic equipment using a work station which comprises a rotatable work surface, a fixed work surface and a support frame. The rotatable work surface is rotatably mounted to the fixed work surface which is, in turn, mounted to the support frame. The work station includes a locking mechanism positioned between the rotatable work surface and the fixed work surface for adjusting the rotational orientation of the rotatable work surface. The rotatable work surface and the fixed work surface are both made of an electrostatic discharge (ESD) safe material.

Abstract: A cutter drum for a web-cutting machine has a body having a cylindrical outer surface centered on an axis and formed with at least one seat having a radially outwardly directed floor face extending axially and helically of the axis and a tangentially directed rear face extending generally radially of the axis. A helically nonstraight blade lies flat on the floor face and has a front cutting edge lying radially outside the surface and a rear side confronting and spaced from the rear face of the seat. Blade bolts extending generally radially of the axis through the blade are seated in the body and secure the blade to the floor face with a possibility, when the blade bolts are not tightened, of limited movement of the blade on the floor face. A plurality of axially spaced spacer blocks each have a rear edge bearing against the rear face of the seat and a front edge bearing against the rear side of the blade.

Abstract: A shaving apparatus is provided including a housing having an inboard portion and an outboard portion having a hollow configuration. Also included is a flexible wire mesh having a circular configuration being mounted within an end of the outboard portion of the housing. A drive assembly includes a motor situated within the inboard portion of the housing for rotating upon the actuation thereof. A blade unit includes an elongated rod with a disk-shaped blade fixedly coupled thereto and situated adjacent to the wire mesh. The rod has an inboard end which is coupled to the motor for rotating the blade upon the actuation thereof, thereby cutting hair of a user and depositing clippings within the hollow outboard portion of the housing.