Abstract:
A wireless IC device includes a wireless IC chip; a feeder circuit board which has the wireless IC chip located thereon, is magnetically coupled to a radiation plate, supplies electric power to the wireless IC chip, and relays signals between the wireless IC chip and the radiation plate; and a substrate on which the feeder circuit board is placed. On the substrate, there are formed a plurality of positioning markers indicating the boundaries of a plurality of positioning areas in which the feeder circuit board is selectively placed.
Abstract:
A printed circuit board is by formed by laminating an interlaminar insulating layer on a conductor circuit of a substrate, in which the conductor circuit is comprised of an electroless plated film and an electrolytic plated film and a roughened layer is formed on at least a part of the surface of the conductor circuit.
Abstract:
A circuit board includes four positioning pads placed on a surface of the circuit board, four positioning holes corresponding to the positioning pads, respectively, and a solder mask placed on the surface around the periphery of the positioning pads. An arc-shaped recess is defined at a side of each positioning pad near the corresponding positioning hole and the space between the edges of the positioning pad and the positioning hole ranges from 0.2 mm to 0.5 mm.
Abstract:
A ceramic substrate (100) includes a top surface, a plurality of identification marks (104), a protective compound (110), a bottom surface, and a plurality of grooves (106). The top surface includes a first area and a second area. The first area is defined at one or more edges portions of the top surface. The second area is defined inside the first area. The identification marks are arranged on the first area. The protective compound is covered on the second area. The grooves are defined at the bottom surface, and corresponding to the identification marks. A related method for breaking a ceramic substrate includes: (a) pasting one or more tapes on the first area; (b) covering protective compound on the second area; (c) removing the tapes; (d) cutting the protective compound according to the identification marks; and (e) breaking the ceramic substrate into individual circuit unit pieces along the grooves.
Abstract:
A method for manufacturing a board with a built-in electronic element, includes providing a support substrate including a support base and a metal foil, forming a protective film made of a metal material on the metal foil of the support substrate, forming a conductive pattern made of a metal material on the protective film by an additive method, placing an electronic element on the support substrate with the conductive pattern such that a surface of the electronic element where a circuit is formed faces the conductive pattern, covering the electronic element with an insulative resin, etching away the metal foil using a first etching solution such that the protective film is not dissolved by the first etching solution or that the protective film has an etching speed which is slower than an etching speed of the metal foil, and electrically connecting terminals of the electronic element and a part of the conductive pattern.
Abstract:
A method for determining a position of a reference point in which there is no influence of aberration of a camera lens or the like, but an error caused by a failure in shape of an alignment mark can be reduced. An alignment mark consisting of a plurality of pattern portions (and background portions) centering at a design reference point is provided in advance. Positions of centers of border lines of the patterns are calculated. Obtained coordinate values of the centers are averaged in each axial direction. The averaged coordinate values are regarded as coordinate values of a machining reference point. Thus, even when a defect occurs in any pattern portion, an error caused by the defect is reduced so that the accuracy in machining can be improved.
Abstract:
A substrate support jig, for removably holding a substrate when mounting electronic components on the substrate, includes a base member having a first surface and a second surface facing and substantially parallel to each other; and an adhesive layer with a predetermined shape and a predetermined thickness formed on the first surface side by applying an adhesive material with a predetermined unit tackiness to an adhesive region. In the adhesive region is formed a land section such that a surface of the land section protrudes from a surface of the adhesive layer by a predetermined amount. The tackiness between the adhesive material and the base member is lower than the tackiness between the adhesive material and the substrate.
Abstract:
A work position information obtaining apparatus capable of obtaining a position of a work with respect to a table with high accuracy. Moving a table with a work placed thereon relative to an imaging section. Obtaining work position information representing a position of the work with respect to the table based on imaged information obtained by imaging table and work reference marks by the imaging section and moving direction positions of the table at the time of imaging the table and work reference marks. Obtaining the positional deviations of the table at the time of imaging the table and work reference marks, with reference to a positional deviation of the table obtained in advance in association with each of the moving direction positions of the table. Then, eliminating an error included in the work position information arising from the difference between each imaged positional deviation.
Abstract:
A wired circuit board that can provide improved reliability on connection between the terminal portions and the external terminals while ensuring high productivity and cost reduction, and a production method thereof. After a conductive pattern 3 including terminal portions 6 to connect with external terminals 22 of an electronic component 21 and criterion marks 8 to determine presence or absence of an inhibitory portion 23 that may be formed due to formation of an insulating cover layer 4 to inhibit connection between the terminal portions 6 and the external terminals 22 are formed on the insulating base layer 2 simultaneously, the insulating cover layer 4 to cover the conductive pattern 3 and an opening 7 from which the terminal portions 6 and the criterion marks 8 are exposed is formed. Thereafter, the presence or absence of the inhibitory portion 23 is determined with reference to the criterion marks 8 exposed from the opening 7 of the insulating cover layer 4.
Abstract:
A wired circuit board that can provide improved reliability on connection between the terminal portions and the external terminals while ensuring high productivity and cost reduction, and a production method thereof. After a conductive pattern 3 including terminal portions 6 to connect with external terminals 22 of an electronic component 21 and criterion marks 8 to determine presence or absence of an inhibitory portion 23 that may be formed due to formation of an insulating cover layer 4 to inhibit connection between the terminal portions 6 and the external terminals 22 are formed on the insulating base layer 2 simultaneously, the insulating cover layer 4 to cover the conductive pattern 3 and an opening 7 from which the terminal portions 6 and the criterion marks 8 are exposed is formed. Thereafter, the presence or absence of the inhibitory portion 23 is determined with reference to the criterion marks 8 exposed from the opening 7 of the insulating cover layer 4.