Abstract:
A wiring board includes a first insulation layer, a second insulation layer formed on the first insulation layer, a wiring structure interposed between the first insulation layer and the second insulation layer and including an insulation layer and conductive patterns formed on the insulation layer, second conductive patterns formed on the second insulation layer, and a via conductor formed through the second insulation layer and connected to one of the second conductive patterns on the second insulation layer.
Abstract:
A printed wiring board includes a first resin insulating layer, a first conductor pattern including first mounting pads formed on the first resin insulating layer, and a wiring structure positioned on the first resin insulating layer and including a second resin insulating layer and a second conductor pattern such that the second resin insulating layer and second conductor pattern are positioned adjacent to the first conductor pattern and that the second conductor pattern includes second mounting pads. The second mounting pads are embedded in the second resin insulating layer such that the second mounting pads have mounting surfaces exposed on an exposed surface of the second resin insulating layer, and the first mounting pads have mounting surfaces such that the mounting surfaces of the first and second mounting pads are formed on a same plane.
Abstract:
A wiring board includes a first resin insulating layer, conductor pads on the first insulating layer including first and second conductor pads, a second resin insulating layer on the first insulating layer covering the first and second pads, an outermost conductor layer on the second insulating layer including first and second outermost wiring layers, via conductors through the second insulating layer including a first via conductor connecting the first wiring layer and first pad and a second via conductor connecting the second wiring layer and second pad, and a solder resist layer on the second insulating layer such that the solder resist layer is covering the first wiring layer and has one or more openings exposing the second wiring layer. The first wiring layer includes first main metal, and the second wiring layer includes second main metal which is different from the first metal of the first wiring layer.
Abstract:
A wiring board includes a first insulation layer, a first conductive pattern structure formed on the first insulation layer, a wiring structure formed on the first insulation layer and including a second insulation layer and a second conductive pattern structure on the second insulation layer, and a third insulation layer formed on the first insulation layer and the first conductive pattern structure and having first and second openings such that the first opening is exposing at least a portion of a surface of the wiring structure and the second opening is exposing at least a portion of the first conductive pattern structure. The wiring structure includes a third conductive pattern structure forming an outermost layer of the wiring structure and including a mounting pad structure which mounts a semiconductor device. The first opening is formed such that the first opening is exposing pad formation area of the mounting pad structure.
Abstract:
A wiring substrate includes a first outermost conductor layer, a first outermost insulating layer covering the first conductor layer, a second outermost conductor layer formed on opposite side of the first conductor layer, and a second outermost insulating layer covering the second conductor layer. The first insulating layer has first openings such that the first openings are exposing first conductor pads including portions of the first conductor layer, the second insulating layer has second openings such that the second openings are exposing second conductor pads including portions of the second conductor layer, each of the first conductor pads has a first plating layer recessed with respect to outer surface of the first insulating layer, and each of the second conductor pads has a second plating layer formed flush with outer surface of the second insulating layer or having bump shape protruding from the outer surface of the second insulating layer.
Abstract:
A combined printed wiring board includes a multilayer printed wiring board, and a wiring film fixed to a surface of the multilayer printed wiring board and including a first wiring structure formed to connect multiple semiconductor elements and a second wiring structure formed to connect the multilayer printed wiring board and each of the semiconductor elements.
Abstract:
A wiring board with a cavity for a built-in electronic component includes a conductor layer including a conductor circuit layer and a plane layer, and an insulating layer laminated on the conductor layer and having a cavity such that the cavity is forming an exposed portion of the plane layer and formed to mount a built-in electronic component on the exposed portion of the plane layer. The plane layer has a recess structure formed in an outer peripheral portion in the exposed portion of the plane layer.
Abstract:
A wiring board with a built-in electronic component includes a substrate having a cavity, an electronic component accommodated in the cavity, a conductive layer formed on the substrate and extending over the electronic component in the cavity, and a solder-resist layer formed on the conductive layer and having first and second openings such that the first openings are forming first pads including the conductive layer exposed by the first openings and that the second openings are forming second pads including the conductive layer exposed by the second openings. The second pads include portions of the conductive layer formed directly over the electronic component, respectively, and connected to the electronic component, the first pads include portions of the conductive layer formed on outer side with respect to the electronic component, respectively, and each second opening has an opening diameter which is formed smaller than an opening diameter of each first opening.
Abstract:
A printed wiring board includes a first resin insulating layer, a first conductor pattern including first mounting pads formed on the first resin insulating layer, and a wiring structure positioned on the first resin insulating layer and including a second resin insulating layer and a second conductor pattern such that the second resin insulating layer and second conductor pattern are positioned adjacent to the first conductor pattern and that the second conductor pattern includes second mounting pads. The second mounting pads are embedded in the second resin insulating layer such that the second mounting pads have mounting surfaces exposed on an exposed surface of the second resin insulating layer, and the first mounting pads have mounting surfaces such that the mounting surfaces of the first and second mounting pads are formed on a same plane.
Abstract:
A wiring board includes a first insulation layer, first conductive patterns formed on the first insulation layer, a second insulation layer formed on the first insulation layer and the first conductive patterns and having an opening portion, a wiring structure accommodated in the opening portion of the second insulation layer and including an insulation layer and conductive patterns on the insulation layer, second conductive patterns formed on the second insulation layer; and a via conductor formed in the second insulation layer and connecting one of the first conductive patterns and one of the second conductive patterns.