Abstract:
A printed circuit board includes an accommodating layer, chip capacitor devices accommodated in the accommodating layer, and a buildup structure formed on the accommodating layer such that the buildup structure covers the chip capacitor devices in the accommodating layer. The buildup structure has mounting conductor structures positioned to mount an IC chip device on a surface of the buildup structure such that the IC chip device is mounted directly over the chip capacitor devices, each of the chip capacitor devices has a dielectric body having a surface facing the buildup structure, a first electrode formed on the dielectric body and extending on the surface of the dielectric body, and a second electrode formed on the dielectric body and extending on the surface of the dielectric body, and the dielectric body is interposed between the first electrode and the second electrode.
Abstract:
A multilayer device has a resin layer, a semiconductor device positioned in the resin layer and including an electronic component and a passivation layer having an opening exposing an electrode of the electronic component, an intermediate layer including metal layers and formed in the opening of the passivation layer such that the intermediate layer is connected to the electrode of the electronic component, and a buildup layer formed on the resin layer and including an insulating layer and a via conductor formed in the insulating layer such that the via conductor is connected to the intermediate layer. The resin layer includes one or more resin material selected from the group consisting of a thermosetting resin material and a thermoplastic resin material.
Abstract:
A multilayer device has a resin layer, a semiconductor device positioned in the resin layer and including an electronic component and a passivation layer having an opening exposing an electrode of the electronic component, an intermediate layer including metal layers and formed in the opening of the passivation layer such that the intermediate layer is connected to the electrode of the electronic component, and a buildup layer formed on the resin layer and including an insulating layer and a via conductor formed in the insulating layer such that the via conductor is connected to the intermediate layer. The resin layer includes one or more resin material selected from the group consisting of a thermosetting resin material and a thermoplastic resin material.
Abstract:
A method for manufacturing a printed circuit board includes forming an opening portion in a substrate, positioning chip capacitors in the opening portion of the substrate such that the chip capacitors are accommodated in the opening portion of the substrate, forming a buildup structure including an interlayer resin insulating layer and a conductive layer over a surface of the substrate and the chip capacitors accommodated in the opening portion of the substrate, and forming on a surface of the buildup structure bump structures positioned to mount an IC chip such that the chip capacitors in the opening portion of the substrate are positioned directly below the IC chip.
Abstract:
A flex-rigid wiring board includes a flexible substrate, a first non-flexible substrate positioned on a first side of the flexible substrate, a second non-flexible substrate positioned on a second side of the flexible substrate, a first insulation layer laminated on first surfaces of the flexible substrate and first and second non-flexible substrates, and a second insulation layer laminated on second surfaces of the flexible substrate and first and second non-flexible substrates. Each of the first and second insulation layers has an opening portion exposing a portion of the flexible substrate such that the portion of the flexible substrate forms a flexible section connecting non-flexible rigid sections, and the first and second non-flexible substrates include a heat dissipating portion including a heat dissipating material having thermal conductivity which is higher than thermal conductivity of the first and second insulation layers.
Abstract:
A method for manufacturing a printed circuit board includes forming an opening portion in a substrate, positioning chip capacitors in the opening portion of the substrate such that the chip capacitors are accommodated in the opening portion of the substrate, forming a buildup structure including an interlayer resin insulating layer and a conductive layer over a surface of the substrate and the chip capacitors accommodated in the opening portion of the substrate, and forming on a surface of the buildup structure bump structures positioned to mount an IC chip such that the chip capacitors in the opening portion of the substrate are positioned directly below the IC chip.