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:
An electronic component includes an insulation layer, an alignment mark positioned on a first surface of the insulation layer, and an adhesive layer including an optically opaque agent and formed on the first surface of the insulation layer or a second surface of the insulation layer on the opposite side with respect to the first surface of the insulation layer. The adhesive layer has an opening portion formed at the position corresponding to the alignment mark such that the opening portion exposes the alignment mark directly or through the insulation layer.
Abstract:
A wiring board includes a first insulation layer, first conductive patterns formed on the first insulation layer and including first mounting pads positioned to mount a semiconductor element, a wiring structure positioned in the first insulation layer and having a second insulation layer, second conductive patterns formed on the second insulation layer, and second mounting pads connected to the second conductive patterns, and third mounting pads formed on the first insulation layer above the second mounting pads and connected to the second mounting pads such that the third mounting pads are positioned to mount the semiconductor element and form a distance between adjacent first and third mounting pads which is greater than a distance between adjacent first mounting pads.
Abstract:
A wiring board includes multiple insulation layers including an outermost insulation layer, a first conductive pattern formed between the insulation layers, a wiring structure positioned in the outermost insulation layer and having multiple first pads such that the first pads are positioned to connect multiple terminals of a first electronic component, respectively, and multiple second pads formed on the outermost insulation layer such that the second pads are positioned to connect terminals of a second electronic component, respectively, and are set at intervals which are greater than intervals of the first pads.
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 wiring board includes a first insulation layer, first conductive patterns formed on the first insulation layer and including first mounting pads positioned to mount a semiconductor element, a wiring structure positioned in the first insulation layer and having a second insulation layer, second conductive patterns formed on the second insulation layer, and second mounting pads connected to the second conductive patterns, and third mounting pads formed on the first insulation layer above the second mounting pads and connected to the second mounting pads such that the third mounting pads are positioned to mount the semiconductor element and form a distance between adjacent first and third mounting pads which is greater than a distance between adjacent first mounting pads.
Abstract:
A wiring board includes a first insulation layer, first conductive patterns formed on the first insulation layer and including first mounting pads positioned to mount a semiconductor element, a wiring structure positioned in the first insulation layer and including a second insulation layer, second conductive patterns formed on the second insulation layer, and second mounting pads connected to the second conductive patterns, and third mounting pads formed on the first insulation layer above the second mounting pads and connected to the second mounting pads such that the third mounting pads are positioned to mount the semiconductor element and are set off from the second mounting pads toward the semiconductor element.
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.