Abstract:
Methods are provided for making plated through holes usable for inserting and attaching connector probes. In a first method, a curved plated through hole is formed by bonding curved etchable wires to a first substrate, plating the wires with a non-etchable conductive material, encasing the plated wires with a dielectric material to form a second substrate, planing the second substrate to expose the etchable wire, and etching the wires to leave plated through holes. In a second method, wires coated with a first etchable layer are initially bonded to a substrate, a second non-etchable plating layer is then applied over the first layer, and the first layer is etched away leaving plated through holes with wires disposed inside. In a third embodiment, a layer of masking material is initially deposited on a substrate and etched to form holes which are filled with a sacrificial fill material, the masking material is then removed, the fill material plated, grinding is performed to remove some plating to expose the fill material, and the fill material is then etched away leaving plated attachment wells. Probes may be attached to the plated through holes or attachment wells to create resilient spring contacts to form a wafer probe card assembly. A twisted tube plated through hole structure is formed by supporting twisted sacrificial wires coated with the plating material in a substrate, and later etching away the wires.
Abstract:
An elastomer interposer employed between a package and a printed circuit board and the method of manufacturing the same are disclosed. The elastomer interposer includes an elastomer, a plurality of conductive wires, Cu pads, solder resistant blocks and Ni/Au plated pads. The elastomer has two contact surfaces. The conductive wires are arranged inside the elastomer at a certain interval and tilted toward one of the contact surfaces with an inclined angle. The Cu pads are formed on both of the surfaces at a space, and electrically connected to the corresponding conductive wires. Also, the Ni/Au plated pads are formed over the Cu pads.
Abstract:
The invention relates to a card-shaped data carrier comprising a card body (1) having an antenna (3), and a chip module (2) containing an integrated circuit (10) and inserted into a gap (5) in the card body (1). The electric connection between the antenna (3) and the chip module (2) is effected via depressions (11) in the terminals (4) of the antenna (3). For producing the inventive data carrier one provides the card body (1), in which the antenna (3) is at least partly embedded, with a gap (5). The terminals (4) of the antenna (3) are exposed by removing the superjacent card material whereby part of the material forming the terminals (4) is also removed. The chip module (2) is inserted into the gap (5) and for example glued to the card body (1) with a thermally activable adhesive (6), an electric connection being formed between the chip module (2) and the antenna (3) for example by means of a conductive adhesive (7) previously applied to the exposed terminals (4) of the antenna (3). In the preferred embodiment the material removal on the terminals (4) of the antenna (3) is effected such that a bevel arises.
Abstract:
The circuit structure of the present invention has a plurality of conductive path layers and at least one interlayer isolating layer formed between the plurality of conductive path layers. Each of the plurality of conductive path layers has at least one conductive path capable of transmitting light or electricity therethrough. Each of a plurality of input/output (I/O) sections is connected to any one of the plurality of conductive paths. Each of the plurality of conductive path layers has a first laminated structure that includes a plurality of first conductive layers and at least one first isolating layer formed therebetween. The interlayer isolating layer has a second laminated structure that includes a plurality of second isolating layers and at least one second conductive layer formed therebetween.
Abstract:
An electronic package assembly for electrical interconnection between two electronic modules having differing conductive array parameters is disclosed. The electronic package assembly includes two electronic modules, providing between the two electronic modules an interposer having a top surface and a bottom surface; a first set of conductive arrays having a first conductive array parameter on the top surface, and a second set of conductive arrays having a second conductive array parameter on the bottom surface, the second conductive array and the first conductive array having differing parameters. A plurality of conductors traverses a thickness of the interposer of the electronic package assembly, with the conductors including a conductive material optionally coated with a dielectric material, the conductors having a first end at the first conductive arrays and a second end at the second conductive arrays, whereby the conductors connecting the first and second conductive arrays therein are adapted to spatially transform the differing parameters to provide an electrical interconnection. A conductive matrix surrounds the conductors of the interposer of the electronic package assembly. The first set of conductive arrays includes the same conductive array parameters as a first electronic module and the second set of conductive arrays includes the same conductive array parameters as a second electronic module.
Abstract:
A method for producing aligned passages through substrate materials, in which the projection of the inlet and outlet openings does not coincide, uses displaced application of etching windows on opposite sides and corresponding pronounced under-etching of these windows. By applying displaced etching windows on both sides of the substrate and through-etching the substrate through these windows, `oblique` passages are obtained through the substrate. By a suitable location of the windows it is also possible to produce branched passages with more than one outlet opening.
Abstract:
In a flexible printed wiring board (1), a first electrical conduction pattern (4) prepared on the first surface (3a) on which a bare chip (2) is mounted is prepared only inside a mounting region (3c) of the bare chip. Preferably, the first electrical conduction patterns (4) are prepared so as to avoid positions opposite to test electrodes (2b) which the bare chip comprises. Thereby, in the flexible printed wiring board used for mounting the bare chip, occurrence of malfunction resulting from electrical connection with a part other than a bump of the bare chip can be certainly prevented, and reliability of various devices using the bare chip can be improved.
Abstract:
Described examples include a method of fabricating a gas cell, including forming a cavity in a first substrate, providing a nonvolatile precursor material in the cavity of the first substrate, bonding a second substrate to the first substrate to form a sealed cavity including the nonvolatile precursor material in the cavity, and activating the precursor material after or during forming the sealed cavity to release a target gas inside the sealed cavity.
Abstract:
A method of forming an multi-chip carrier that includes providing a trace structure using an additive forming method. The method includes forming a metal layer on a trace structure to provide electrically conductive lines. A dielectric material may then be formed on the electrically conductive lines to encapsulate a majority of the electrically conductive lines. The ends of the electrically conductive lines that are exposed through the upper surface of the dielectric material provide a top processor mount location and the ends of the electrically conductive lines that are exposed through the sidewalls of the dielectric material provide a sidewall processor mount location.
Abstract:
A method of manufacturing a through-hole electrode substrate includes forming a plurality of through-holes in a substrate, forming a plurality of through-hole electrodes by filling a conductive material into the plurality of through-holes, forming a first insulation layer on one surface of the substrate, forming a plurality of first openings which expose the plurality of through-hole electrodes corresponding to each of the plurality of through-hole electrodes, on the first insulation layer and correcting a position of the plurality of first openings using the relationship between a misalignment amount of a measured distance value of an open position of a leaning through-hole among the plurality of through-holes and of a design distance value of the open position of the leaning through-hole among the plurality of through-holes with respect to a center position of the substrate.