Abstract:
PROBLEM TO BE SOLVED: To provide an electronic circuit in which an electronic component having a plurality of lead pins are mounted on a substrate in a simple process while obtaining high reliability.SOLUTION: Disclosed is an electronic circuit 1 in which an electronic component 20 is mounted on a substrate 10. The electronic component 20 has a plurality of lead pins 21 electrically connected to wiring on the substrate 10. In the substrate 10, a hole 11 is provided whose dimension exceeds the maximum distance between the plurality of lead pins 21. The lead pins 21 are inserted into the hole 11 from the tip side of the lead pins 21, bent at a plurality of bent parts 23, 24 and fixed to the substrate by solder 31.
Abstract:
PROBLEM TO BE SOLVED: To provide a wiring board, a method of forming a via in the wiring board and a method of manufacturing the wiring board that enable a space between vias formed in the wiring board to be reduced. SOLUTION: The wiring board 101 has a plurality of wiring layers, a first land 103a, a second land 103b, a first via 102a and a second via 102b. The first land 103a and the second land 103b are formed on one surface of the wiring board 101 and are disposed to partially overlap with each other. The first via 102a and the second via 102b are formed in association with the first land 103a and the second land 103b, respectively. The first via 102a and the second via 102b electrically connect one wiring layer and another wiring layer of the plurality of wiring layers to each other. The wiring board 101 has a separator 105 that is formed by a hole that separates the first land 103a and the second land 103b from each other. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a multilayer wiring board in which in an electric connection in an interlayer between respective wiring layers of the multilayer wiring board, a wiring pitch for ensuring a via forming part is not widened and a wiring length or a wiring width is not increased, thereby not increasing a production size also, and to provide its manufacturing method. SOLUTION: When an electric connection is carried out between an upper layer and a lower layer through an opening 16 provided in an insulating layer 14 of a wiring board which constitutes the multilayer wiring board, not all wall faces of the opening 16 of the insulating layer are covered with a conductive material 30, but the wall face of a part of the opening 16 is exposed, while the electric connection is carried out between the upper layer and the lower layer through the conductive material 30. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a printed board with built-in capacitor providing a capacitance having a high capacity by forming a long-sized built-in capacitor in an insulating layer and being capable of freely designing the capacity of the capacitance, and to provide a manufacturing method for the printed board. SOLUTION: A dielectric having a length longer than a width and being formed in a specified length, and the built-in capacitor having a first electrode and a second electrode formed on both side walls of the dielectric respectively in the longitudinal direction of the dielectric, are contained in the insulating layer. COPYRIGHT: (C)2006,JPO&NCIPI