Abstract:
PROBLEM TO BE SOLVED: To improve the reliability of a wiring board.SOLUTION: The wiring board includes a substrate having a cavity, an electronic component accommodated in the cavity of the substrate, a first conductive pattern so formed on a first surface of the substrate as to surround the opening of the cavity, a second conductive pattern formed around the first conductive pattern, and an insulating layer so formed on the first surface of the substrate as to cover the first conductive pattern, the second conductive pattern, and the opening of the cavity. The first conductive pattern has a slit extending from the second conductive pattern side to the opening side of the cavity.
Abstract:
PROBLEM TO BE SOLVED: To provide a method for manufacturing of a printed board can improve mounting efficiency and a hygroscopic property without degrading a high-frequency characteristic; a printed board provided by the same; and a manufacturing device of a printed board. SOLUTION: This method for manufacturing of a printed board forming each through-hole with a hole penetrating between a front face and a back face manufactures a printed board having a through-hole where the front face side and the back face side of the printed board are electrically cut from each other by including a removal process of annularly removing a conductive material in an in-hole wall surface at least at a part between the front face side and the back face side of the printed board after a plating process of forming a through-hole where the conductive material is plated on the in-hole wall surface, and the front surface and the back surface of the printed board are electrically connected. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a circuit board having a via structural body reducing distortion of signals. SOLUTION: The circuit board 100 includes a board body 10, a conductive connector 22 penetrating the board body, and a via structural body 20 having a conductive shield member 24 surrounding at least a part of the conductive connector in order to reduce distortion of signals applied to the conductive connector. A conductive shield member to which power signals or ground signals are applied is arranged outside of the conductive connector to which data signals are applied, thereby preventing distortion of the data signals and generation of electromagnetic wave from the conductive electrode. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a multilayer wiring circuit board structure having a degree of freedom in wiring design without the generation of a via stab. SOLUTION: The multilayer wiring circuit board structure having a first wiring pattern 11 formed on a desired layer of a multilayer wiring circuit board 100, a second wiring pattern 12 formed on a layer different from the layer on which the first wiring pattern 11 is formed, a through-hole 20 formed through the front surface 100a and the rear surface 100b of the multilayer wiring circuit board 100, a conductor 32 at a side surface 30a internally in contact with the through-hole 20, and an engaging connector 30 engaged with the through-hole 20. The first wiring pattern 11 and the second wiring pattern 12 are exposed to the internal surface 20a of the through-hole 20, and the engaging connector 30 connects the first end 32a and the second end 32b of the conductor 32 to an exposed part 11a of the first wiring pattern 11 and an exposed part 11b of the second wiring pattern 12, respectively. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a wiring structure or the like for sufficiently improving connection capability between an object to be connected and a wiring pattern (layer) connected to the connection object. SOLUTION: In a circuit board 1 including a built-in semiconductor, a conductor pattern 13 is formed in both surfaces of a core board 11 and a semiconductor device 14 is arranged within a resin layer 16 laminated on the core board 11. The conductor pattern 13 and a bump 14p of the semiconductor device 14 are provided on the resin layer 16 and via-holes 19a, 19b are formed on the upper part of these elements. Moreover, within the internal side of the via-holes 19a, 19b, via-hole electrodes 23a, 23b are connected to the conductor pattern 13 and the bump 14p of the semiconductor device 14. The via-hole electrodes 23a, 23b include recesses on the upper surface thereof and are provided in such a manner that side walls including edge end portions of the recesses are provided not in contact with the internal walls of the via-holes 19a, 19b. COPYRIGHT: (C)2008,JPO&INPIT