摘要:
A wiring board has an insulating layer, a plurality of wiring layers formed in such a way as to be insulated from each other by the insulating layer, and a plurality of vias formed in the insulating layer to connect the wiring layers. Of the wiring layers, a surface wiring layer formed in one surface of the insulating layer include a first metal film exposed from the one surface and a second metal film embedded in the insulating layer and stacked on the first metal film. Edges of the first metal film project from edges of the second metal film in the direction in which the second metal film spreads. By designing the shape of the wiring layers embedded in the insulating layer in this manner, it is possible to obtain a highly reliable wiring board that can be effectively prevented from side etching in the manufacturing process and can adapt to miniaturization and highly dense packaging of wires.
摘要:
A wiring board comprising a first surface on which a first electrode is disposed and a second surface on which a second electrode is disposed; at least a single insulation layer and at least a single wiring layer; and one or a plurality of mounted semiconductor elements, wherein the second electrode disposed on the second surface is embedded in the insulation layer, the surface on the opposite side of the exposed surface on the second surface side of the second electrode is connected to the wiring layer, and all or part of the side surface of the second electrode does not make contact with the insulation layer.
摘要:
In the wiring board, insulating layers and wiring layers are alternately laminated, and the wiring layers are electrically connected by the vias. The wiring board includes first terminals arranged in a first surface and embedded in an insulating layer, second terminals arranged in a second surface opposite to the first surface and embedded in an insulating layer, and lands arranged in an insulating layer and in contact with the first terminals. The vias electrically connect the lands and the wiring layers laminated alternately with the insulating layers. No connecting interface is formed at an end of each of the vias on the land side but a connecting interface is formed at an end of each of the vias on the wiring layer side.
摘要:
A wiring board in which lower-layer wiring composed of a wiring body and an etching barrier layer is formed in a concave portion formed on one face of a board-insulating film, upper-layer wiring is formed on the other face of the board-insulating film, and the upper-layer wiring and the wiring body of the lower-layer wiring are connected to each other through a via hole formed in the board-insulating film. The via hole is barrel-shaped, bell-shaped, or bellows-shaped.
摘要:
A wiring board composite body includes a supporting substrate, and wiring boards formed on each of the upper and the lower surfaces of the supporting substrate. The supporting substrate includes a supporting body, and a metal body arranged on each of the upper and the lower surfaces of the supporting body. The wiring board comprises at least an insulation layer insulating upper and lower wirings, and a via connecting the upper and the lower wirings. The wiring board mounted on the metal body constitutes a wiring board with the metal body. Thus, the supporting body supporting the metal body is effectively used in a process of forming the wiring board on the metal body, and the wiring board composite body, which has advantageous structural and production characteristics, is provided. A semiconductor device and a method for manufacturing such wiring board composite body and the semiconductor device are also provided.
摘要:
A wiring board comprising a first surface on which a first electrode is disposed and a second surface on which a second electrode is disposed; at least a single insulation layer and at least a single wiring layer; and one or a plurality of mounted semiconductor elements, wherein the second electrode disposed on the second surface is embedded in the insulation layer, the surface on the opposite side of the exposed surface on the second surface side of the second electrode is connected to the wiring layer, and all or part of the side surface of the second electrode does not make contact with the insulation layer.
摘要:
A circuit board includes a functional device, a circuit board embedding therein the functional device, and first and second conductive-wiring layers formed on the front and rear surfaces of the circuit board to sandwich therebetween the functional device and each include at least one conductor layer. The surface of each of the outermost patterned interconnections of the first conductive-wiring layer is exposed, and the surface of a first dielectric layer isolating the outermost patterned interconnections from one another protrudes from the surface of the each of the patterned interconnections. The patterned interconnections of the second conductive-wiring layer are connected to respective electrode terminals of the functional device, and the surface of a second dielectric layer isolating the electrode terminals from one another is substrate within the same plane as the surface of the electrode terminals disposed adjacent to the second dielectric layer.
摘要:
A first electronic circuit component and a second electronic circuit component are electrically connected to an electro-conductive member via a first solder and a second solder, respectively. The electro-conductive member is formed in a resin film. The electro-conductive member is configured as containing a second diffusion barrier metal film. The second diffusion barrier metal film prevents diffusion of the second solder. Between the electro-conductive member and the first solder, a first diffusion barrier metal film is provided. The first diffusion barrier metal film prevents diffusion of the first solder. On the first surface of the resin film and on the electro-conductive member, an adhesive metal film is formed so as to contact with the resin film and the electro-conductive member. The adhesive metal film has stronger adhesiveness to the resin film than either of those of the first solder and the first diffusion barrier metal film.
摘要:
A first electronic circuit component and a second electronic circuit component are electrically connected to an electro-conductive member via a first solder and a second solder, respectively. The electro-conductive member is formed in a resin film. The electro-conductive member is configured as containing a second diffusion barrier metal film. The second diffusion barrier metal film prevents diffusion of the second solder. Between the electro-conductive member and the first solder, a first diffusion barrier metal film is provided. The first diffusion barrier metal film prevents diffusion of the first solder. On the first surface of the resin film and on the electro-conductive member, an adhesive metal film is formed so as to contact with the resin film and the electro-conductive member. The adhesive metal film has stronger adhesiveness to the resin film than either of those of the first solder and the first diffusion barrier metal film.
摘要:
A semiconductor device in which a plurality of semiconductor chips is stacked. A first semiconductor chip is stacked in a region, on a second semiconductor chip, in which a circuit that generates noise is not disposed within said second semiconductor chip, and a wire of a circuit that easily receives noise within said first semiconductor chip is disposed so as not to extend over said circuit that generates noise.