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 semiconductor memory module formed of a mounted module (12) having a semiconductor memory device (16) and a control semiconductor device (18), a circuit board (14) which contains connection terminal (20) coupled with the control semiconductor device (18) and disposed so that it is exposed from the surface of outer case (42), and an antenna connection terminal electrode (22) disposed in the inside of outer case (42); and an antenna module (24) having a sheet board (26) which includes an antenna (28) disposed on one of the surfaces in the neighborhood of the edge along the sides, a layer (30) of magnetic substance disposed on the other surface, and an antenna terminal electrode (38) disposed on the one or the other surface. The antenna module (24) is overlaid on the mounted module (12), and the antenna connection terminal electrode (22) is connected with the antenna terminal electrode (38).
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 semiconductor memory module formed of a mounted module (12) having a semiconductor memory device (16) and a control semiconductor device (18), a circuit board (14) which contains connection terminal (20) coupled with the control semiconductor device (18) and disposed so that it is exposed from the surface of outer case (42), and an antenna connection terminal electrode (22) disposed in the inside of outer case (42); and an antenna module (24) having a sheet board (26) which includes an antenna (28) disposed on one of the surfaces in the neighborhood of the edge along the sides, a layer (30) of magnetic substance disposed on the other surface, and an antenna terminal electrode (38) disposed on the one or the other surface. The antenna module (24) is overlaid on the mounted module (12), and the antenna connection terminal electrode (22) is connected with the antenna terminal electrode (38).
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:
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 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 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:
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.