Abstract: A wiring board includes a substrate having an opening portion, electronic components positioned in the opening portion of the substrate and including first and second electronic components, and an insulation layer formed over the substrate and the first and second components. The first component has first and second electrodes having side portions on side surfaces of the first component, the second component has first and second electrodes having side portions on side surfaces of the second component, the first electrode of the first component and the first electrode of the second component are set to have substantially the same electric potential, and the first component and the second component are positioned in the opening portion of the substrate such that the side portion of the first electrode of the first component is beside the side portion of the first electrode of the second component.

Abstract: A printed wiring board includes a core substrate having a penetrating hole, a first conductive layer on a first surface of the substrate, a second conductive layer on a second surface of the substrate, a first electronic component having an electrode and accommodated in the hole such that the electrode faces the first surface, a first structure on the first surface and including a pad for mounting a second electronic component on the first structure and a via conductor connected to the electrode, and a second structure on the second surface. The electrode has an upper surface facing toward the first surface, the first layer has an upper surface facing away from the first surface, and the first component is positioned in the hole such that the upper surface of the electrode forms a gap with the upper surface of the first layer.

Abstract: A substrate for mounting a semiconductor includes a first insulation layer having first and second surfaces on the opposite sides and having a penetrating hole penetrating through the first insulation layer, an electrode formed in the penetrating hole in the first insulation layer and having a protruding portion protruding from the second surface of the first insulation layer, a first conductive pattern formed on the first surface of the first insulation layer and connected to the electrode, a second insulation layer formed on the first surface of the first insulation layer and the first conductive pattern and having a penetrating hole penetrating through the second insulating layer, a second conductive pattern formed on the second insulation layer and for mounting a semiconductor element, and a via conductor formed in the penetrating hole in the second insulation layer and connecting the first and second conductive patterns.

Abstract: A wiring board with a built-in electronic component includes a core substrate having a penetrating hole formed in the core substrate, an electronic component accommodated in the penetrating hole in the core substrate, a conductive pattern layer formed on a first surface of the core substrate and including a first conductive pattern and a second conductive pattern, and an interlayer insulation layer formed over the conductive pattern layer and the first surface of the core substrate. The second conductive pattern is formed adjacent to a periphery of the penetrating hole such that the second conductive pattern is formed along an outline of the periphery of the penetrating hole.

Abstract: A wiring board with a built-in electronic component includes a core substrate having the thickness not exceeding 300 ?m and having a cavity having an opening on a surface of the core substrate, an electronic component having the thickness not exceeding 300 ?m and accommodated in the cavity of the core substrate, and a laminated structure formed on the surface of the core substrate and including an insulation resin layer and a wiring layer such that the laminated structure is covering the opening of the cavity of the core substrate and the electronic component accommodated in the cavity of the core substrate. The electronic component has an insulation material body and an electrode formed on a surface of the insulation material body, and the wiring layer of the laminated structure is formed such that the thickness of the wiring layer is set smaller than the thickness of the electrode.

Abstract: A substrate for mounting a semiconductor includes a first insulation layer having first and second surfaces on the opposite sides and having a penetrating hole penetrating through the first insulation layer, an electrode formed in the penetrating hole in the first insulation layer and having a protruding portion protruding from the second surface of the first insulation layer, a first conductive pattern formed on the first surface of the first insulation layer and connected to the electrode, a second insulation layer formed on the first surface of the first insulation layer and the first conductive pattern and having a penetrating hole penetrating through the second insulating layer, a second conductive pattern formed on the second insulation layer and for mounting a semiconductor element, and a via conductor formed in the penetrating hole in the second insulation layer and connecting the first and second conductive patterns.

Abstract: A method for manufacturing a printed wiring board, in which filled vias with a reduction in faulty connections are formed, and providing such a printed wiring board. After an electroless plated film is formed on an inner wall of a via opening, electrolytic plating is performed on insulative resin base material; the via opening is filled with plating metal and a filled via is formed. Therefore, during electrolytic plating, a plating metal is deposited from electroless plated film on the side wall of the via opening as well as from the bottom of the via opening. As a result, the via opening may be completely filled through electrolytic plating, forming a filled via with a reduction in faulty connections.

Abstract: A substrate for mounting a semiconductor includes a first insulation layer having first and second surfaces on the opposite sides and having a penetrating hole penetrating through the first insulation layer, an electrode formed in the penetrating hole in the first insulation layer and having a protruding portion protruding from the second surface of the first insulation layer, a first conductive pattern formed on the first surface of the first insulation layer and connected to the electrode, a second insulation layer formed on the first surface of the first insulation layer and the first conductive pattern and having a penetrating hole penetrating through the second insulating layer, a second conductive pattern formed on the second insulation layer and for mounting a semiconductor element, and a via conductor formed in the penetrating hole in the second insulation layer and connecting the first and second conductive patterns.

Abstract: A wiring board includes a substrate having an opening portion, multiple electronic devices positioned in the opening portion such that the electronic devices are arrayed in the lateral direction of each of the electronic devices, and an insulation layer formed on the substrate such that the insulation layer covers the electronic devices in the opening portion of the substrate. The substrate has a wall surface defining the opening portion and formed such that the opening portion is partially partitioned and the electronic devices are kept from making contact with each other.

Abstract: A wiring board includes a first substrate having a penetrating hole penetrating through the first substrate, a built-up layer formed on a surface of the first substrate and including interlayer resin insulation layers and wiring layers, the built-up layer having an opening portion communicated with the penetrating hole of the fist substrate and opened to the outermost surface of the built-up layer, an interposer accommodated in the opening portion of the built-up layer and including a second substrate and a wiring layer formed on the second substrate, the wiring layer of the interposer including conductive circuits for being connected to semiconductor elements, a filler filling the opening portion such that the interposer is held in the opening portion of the built-up layer, and mounting pads formed on the first substrate and positioned to mount the semiconductor elements. The mounting pads are positioned to form a matrix on the first substrate.

Abstract: A printed wiring board includes a core substrate having opening, an electronic component device accommodated in the opening of the substrate and including inductor and passive components, a wiring structure connecting the inductor and passive components in the electronic device, a filler resin body filling space formed between the substrate and electronic device in the opening of the substrate, a first buildup layer including a first interlayer insulation layer on first surface of the substrate, a first conductive layer on the first insulation layer, and a first via conductor in the first insulation layer, and a second buildup layer including a second interlayer insulation layer on second surface of the substrate on the opposite side of the first surface of the substrate, a second conductive layer on the second insulation layer, and a second via conductor in the second insulation layer.

Abstract: A substrate for mounting a semiconductor includes a first insulation layer having first and second surfaces on the opposite sides and having a penetrating hole penetrating through the first insulation layer, an electrode formed in the penetrating hole in the first insulation layer and having a protruding portion protruding from the second surface of the first insulation layer, a first conductive pattern formed on the first surface of the first insulation layer and connected to the electrode, a second insulation layer formed on the first surface of the first insulation layer and the first conductive pattern and having a penetrating hole penetrating through the second insulating layer, a second conductive pattern formed on the second insulation layer and for mounting a semiconductor element, and a via conductor formed in the penetrating hole in the second insulation layer and connecting the first and second conductive patterns.

Abstract: A wiring board includes a substrate having an opening portion, multiple electronic devices positioned in the opening portion, and an insulation layer formed on the substrate such that the insulation layer covers the electronic devices in the opening portion of the substrate. The substrate has a wall surface defining the opening portion and formed such that the opening portion is partially partitioned and the electronic devices are kept from making contact with each other.

Abstract: A wiring board including a first substrate having a penetrating hole penetrating through the first substrate, a built-up layer formed on one surface of the first substrate and including multiple interlayer resin insulation layers and wiring layers, the built-up layer having an opening portion communicated with the penetrating hole of the first substrate and opened to the outermost surface of the built-up layer, an interposer accommodated in the opening portion of the built-up layer and including a second substrate and a wiring layer formed on the second substrate, the wiring layer of the interposer including multiple conductive circuits for being connected to multiple semiconductor elements, and a filler filling the opening portion of the built-up layer such that the interposer is held in the opening portion of the built-up layer. The opening portion of the built-up layer has a tapered portion tapering toward the outermost surface of the built-up layer.

Abstract: A wiring board includes a substrate having a cavity, and an electronic component accommodated in the cavity of the substrate. The substrate has a thickness which is greater than a thickness of the electronic component such that a ratio of the thickness of the substrate to the thickness of the electronic component is set in a range of 0.3 or greater and 0.7 or less.

Abstract: A printed wiring board includes a core substrate, first and second buildup structures on surfaces of the core, respectively, and first and second solder-resist layers on the first and second structures, respectively. The core includes insulative substrate, conductive layers on surfaces of the substrate and through-hole conductor connecting the conductive layers, the first structure includes interlayer insulation layer and conductive layer in the first structure, the second structure includes interlayer insulation layer and conductive layer in the second structure, a thickness between the outer surfaces of the first and second solder-resist layers is set in range of from 150 ?m or greater and less than 380 ?m, and at least one of the core, first and second structures, and first and second solder-resist layers includes reinforcing material in amount such that the board includes the material in amount in range of from 20 to 35 vol. %.

Abstract: A wiring board including a substrate having opening penetrating from first to second surfaces, an electronic component in the opening having first and second electrodes, a first insulation layer over the first surface, a second insulation layer over the second surface, a first via conductor in the first layer having bottom connected to the first electrode, a second via conductor in the first layer having bottom connected to the second electrode, a third via conductor in the second layer having bottom connected to the first electrode, and a fourth via conductor in the second layer having bottom connected to the second electrode. The first conductor is longer than the third conductor and has the bottom having greater width than the bottom of the third conductor, and the second conductor is longer than the fourth conductor and has the bottom having greater width than the bottom of the fourth conductor.

Abstract: A wiring board includes a substrate having a cavity, an electronic component positioned in the cavity and having a first-side electrode on one side of the electronic component and a second-side electrode on the opposite side of the electronic component, an insulation layer formed on a surface of the substrate and the electronic component such that the insulation layer covers the electronic component positioned in the substrate, and a conductive layer formed on the surface of the substrate and including linear conductive patterns surrounding an opening of the cavity on the surface of the substrate. The linear conductive patterns include a first linear conductive pattern positioned adjacent to the first-side electrode and a second linear conductive pattern positioned adjacent to the second-side electrode such that the first linear conductive pattern and the second linear conductive pattern are insulated from each other.

Abstract: A wiring board including a core substrate made of an insulative material and having a penetrating portion, a first interlayer insulation layer formed on the surface of the core substrate, a first conductive circuit formed on the surface of the first interlayer insulation layer, a first via conductor formed in the first interlayer insulation layer, and an electronic component accommodated in the penetrating portion of the core substrate and including a semiconductor element, a bump body mounted on the semiconductor element, a conductive circuit connected to the bump body, an interlayer resin insulation layer formed on the conductive circuit, and a via conductor formed in the interlayer resin insulation layer. The first via conductor has a tapering direction which is opposite of a tapering direction of the via conductor in the electronic component.

Abstract: A circuit wiring board including a wiring substrate, multiple electronic components provided on a surface of the wiring substrate, and a heat resistant substrate accommodated in the wiring substrate and having a core substrate and a built-up wiring layer formed over the core substrate. The built-up wiring layer includes a conductive layer and an interlayer resin insulating layer, and the electronic components are electrically connected to the conductive layer of the built-up wiring layer.