摘要:
A manufacturing method for a component built-in module, including: forming, in a sheet member including resin, a via hole filled up with a conductive paste, a cavity in which an electronic component is to be built, and an adjustment space; and performing a heat press allowing the sheet member to abut against a substrate on which the electronic component has been mounted, wherein the adjustment space is formed so that a flow vector of the resin in a neighborhood of the via hole during the heat press, which is directed toward the electronic component, is cancelled by a flow vector of the resin in a neighborhood of the via hole during the heat press, which is directed toward the adjustment space.
摘要:
Card type information device includes wiring board having a wiring pattern with an electronic component mounted on a first face of wiring board and an antenna connecting electrode, antenna board having antenna pattern with antenna terminal electrode formed on a first face of antenna board, magnetic material placed between wiring board and antenna board confronting each other, flexible wiring board for coupling the antenna connecting electrode to antenna terminal electrode, and housing for accommodating wiring board, antenna board, magnetic material, and flexible wiring board. Wiring board and antenna board are made from one and the same insulating motherboard.
摘要:
A storage medium with built-in antenna includes circuit board on which semiconductor element is placed, first and second magnetic layers sandwiching semiconductor element and circuit board, and first and second antenna coils disposed on first and second magnetic layers. First and second antenna coils are connected in parallel on a flexible sheet. First and second antenna coils are folded at the sides of first and second magnetic layers, respectively, and electrically connected to semiconductor element.
摘要:
A printed circuit board of the present invention is formed of an electrical insulating base material with through holes that are formed in a thickness direction of the electrical insulating base material and are filled with an electrical conductor; the electrical insulating base material including a core layer formed by impregnating a holder with a resin and resin layers formed on both sides of the core layer; and wiring layers that are formed on both surfaces of the electrical insulating base material into a predetermined pattern and are electrically connected to each other by the electrical conductor. The wiring layer is embedded in at least one of the resin layers. The resin layers on the both sides have different thicknesses from each other, and a thinner layer out of the resin layers has a thickness equal to or smaller than a mean particle diameter of an electrically conductive filler contained in the electrical conductor. By adjusting the thickness of the resin layers formed on both sides of the resin holder such as a glass cloth, it is possible to ensure high reliability when electrically connecting circuit boards using an electrically conductive paste as the electrical conductor.
摘要:
An antenna built-in module which incorporates an antenna, is thin and excellent in antenna characteristics, a card type information device and a method for manufacturing the same are provided. A wiring board (110) which has a wiring pattern (120) and in which an electronic component is mounted on at least one surface thereof, a magnetic substance (160) embedded in the other surface of the wiring board (110), an antenna pattern (170) provided on the magnetic substance (160), the wiring pattern (120) of the wiring board (110) and the antenna terminal electrode of the antenna pattern (170) are connected by a conductive via (200).
摘要:
Card type information device includes wiring board having a wiring pattern with an electronic component mounted on a first face of wiring board and an antenna connecting electrode, antenna board having antenna pattern with antenna terminal electrodes formed on a first face of antenna board, magnetic material placed between wiring board and antenna board confronting each other, flexible wiring board for coupling the antenna connecting electrode to antenna terminal electrode, and housing for accommodating wiring board, antenna board, magnetic material, and flexible wiring board. Wiring board and antenna board are made from one and the same insulating motherboard.
摘要:
The present invention provides a printed circuit board, which includes a dielectric substrate having via holes formed in the thickness direction, and a conductor including a conductive filler is filled in the via holes. The dielectric substrate has patterned wiring layers on both surfaces, and the wiring layers are connected electrically with each other by the conductor. The dielectric substrate is made of a glass cloth or a glass nonwoven fabric impregnated with a thermosetting epoxy resin mixed with fine particles, and the conductive filler in the conductor has an average particle diameter larger than that of the fine particles. Accordingly, the printed circuit board has an improved moisture resistance as a whole and also excellent connection reliability and repair resistance. In addition, the dielectric substrate of the printed circuit board has an improved mechanical strength such as flexural rigidity. The present invention also provides a method of manufacturing such a printed circuit board.
摘要:
An implementing structure intermediate body including: a first chip having a first connection terminal; a second chip having a second connection terminal in a face that faces the first chip; and a film wiring substrate having a third connection terminal in one face, which is arranged between the first chip and the second chip, is loaded on a chip loading substrate having a fifth connection terminal so that another one face of the first chip is confronted thereby. In the film wiring substrate, there is a portion that is located outside any of the first chip and the second chip, at the tip part, is provided a fourth connection terminal connected to the third connection terminal by wiring, one part of the first connection terminal is connected with the second connection terminal, the third connection terminal is connected with another one part of the first connection terminal, and the fifth connection terminal is connected to the fourth connection terminal.
摘要:
The semiconductor memory module incorporating antenna includes a wiring board (11) having a connection terminal (17) connected with a control semiconductor element (16) and arranged at a position exposed to the surface of an outer case (15), and a terminal electrode (18) for antenna connection connected with the control semiconductor element (16) and arranged in the outer case (15); a semiconductor storage element (12) mounted on one side of the wiring board (11); and a loop-like antenna (13) and an antenna terminal electrode (20) formed on the other side of the wiring board (11) along the outer peripheral thereof, the wiring board (11) includes at least one magnetic body layer (14) and the terminal electrode (18) for antenna connection is connected with the antenna terminal electrode (20).
摘要:
A method of manufacturing a multilayered circuit board includes the steps of: manufacturing a laminated body by laminating a prepreg of a predetermined thickness on at least one surface of a double-sided circuit board having a grounding link and a signal wiring patterned on both surfaces thereof; and applying heat and pressure to the laminated body and completing a layered structure in which the signal wiring is laid inside the prepreg at a boundary between the double-sided circuit board and the prepreg, wherein prepreg sheets of a predetermined thickness are used in a completed layered structure so that a thickness of a prepreg of the double-sided circuit board is smaller than a distance between a surface of the prepreg on a side not opposed to the double-sided circuit board and the signal wiring laid inside the prepreg.