Abstract:
Provided is a printed circuit board, including: a circuit pattern or a base pad formed on an insulating layer; and a plurality of metal layers formed on the circuit pattern or the base pad, wherein the metal layers includes: a silver metal layer formed of a metal material including silver; a first palladium metal layer formed at a lower part of the silver metal layer; and a second palladium metal layer formed at an upper part of the silver metal layer.
Abstract:
Provided is a thin film ceramic multilayer wiring board that is appropriate for use as a highly - integrated multilayer wiring board for a probe card which tests a highfrequency module for mobile communication, a microwave connector, a cable assembly, a semiconductor chip, etc., and a method of manufacturing the thin film ceramic multilayer wiring board. The thin film ceramic multilayer wiring board includes: a first conductive structure and a first insulating structure surrounding the first conductive structure, both constituting a multilayer wiring board body; a second insulating structure surrounding the first insulating structure; and a second conductive structure formed on an output pad of the first conductive structure. Here, the second conductive structure is formed by sequentially plating Cu, Ni and Au. According to the thin film ceramic multilayer wiring board and method of manufacturing the same, the second conductive structure is formed using a thin film conductive structure. Therefore, a fine pattern is readily implemented and high integration can be achieved.
Abstract:
In a method for fixing an electronic component (3) on a printed circuit board (2), and contact-connecting the electronic component (3) to the printed circuit board (2), the following steps are provided: - providing the printed circuit board (2) having a plurality of contact and connection pads (8), - providing the electronic component (3) having a number of contact and connection locations (5) corresponding to the plurality of contact and connection pads (8) of the printed circuit board (2), with a mutual spacing reduced in comparison with the spacing of the contact and connection pads (8) of the printed circuit board (2), and - arranging or forming at least one interlayer (4) for routing the contact and connection locations (5) of the electronic component (3) between the contact and connection pads (8) of the printed circuit board (2) and the contact and connection locations (5) of the electronic component (3). A method for producing an interlayer (4) for routing and a system having a printed circuit board (2) and an electronic component (3) using the interlayer (4) for routing are also provided.
Abstract:
A method of applying an edge electrode pattern to a touch screen. The method includes depositing, on a first surface of a decal strip, conductive material in the form of an edge electrode pattern, placing the first surface of the decal strip on one edge of a touch screen, applying heat and pressure to an opposite surface of the decal strip until the edge electrode pattern is transferred from the first surface of the decal strip to the touch screen; and removing the decal strip.
Abstract:
A multilayer circuit board for mounting ICs so constituted that IC bare chips can be mounted directly on the multilayer circuit board comprising a flexible circuit board and a manufacturing method thereof. Hole parts for connecting electrically ICs with a desired conductive layer of the multilayer circuit board are formed in required positions of the circuit board and conductive bump members protruding from the circuit board are formed with a means for plating the hole parts or with a means for filling the holes with a conductive material. The pads of the IC bare chips can be electrically connected with the desired conductive layer of the circuit board through these conductive bump members reliably. Thus, the IC bare chips can be easily and quickly mounted through the bump members on the multilayer circuit board by a heat or ultrasonic bonding method or by means of a laser beam, infrared rays or the like.