A method of manufacturing a component-embedded substrate includes a resist forming step in which a patterning resist is formed on a support, a patterning step in which a through hole extending through the resist is formed by performing patterning on the resist, a first-electrode forming step in which a through-via electrode is formed by filling the through hole with an electrode material, a resist removing step in which the resist is removed, a component placement step in which an electronic component is placed, a substrate forming step in which a resin substrate is formed by sealing the electronic component with a resin that includes a filler having a diameter larger than the surface roughness of a side surface of the through-via electrode, and a removing step in which the support is removed from the resin substrate. The first-electrode forming step is performed before the substrate forming step is performed.

A printed circuit board includes: an insulating layer having a via hole formed therein; a single layer metal pad disposed in the insulating layer and having a center portion that is exposed by the via hole, the center portion of the pad having a higher roughness than peripheral portions of the pad; and a via formed in the via hole and connected to the center portion of the pad.

In a conventional electronic device and a method of manufacturing the same, reduction in cost of the electronic device is hindered because resin used in an interconnect layer on the solder ball side is limited. The electronic device includes an interconnect layer (a first interconnect layer) and an interconnect layer (a second interconnect layer). The second interconnect layer is formed on the undersurface of the first interconnect layer. The second interconnect layer is larger in area seen from the top than the first interconnect layer and is extended to the outside from the first interconnect layer.

A method of manufacturing a through-hole electrode substrate includes forming a plurality of through-holes in a substrate, forming a plurality of through-hole electrodes by filling a conductive material into the plurality of through-holes, forming a first insulation layer on one surface of the substrate, forming a plurality of first openings which expose the plurality of through-hole electrodes corresponding to each of the plurality of through-hole electrodes, on the first insulation layer and correcting a position of the plurality of first openings using the relationship between a misalignment amount of a measured distance value of an open position of a leaning through-hole among the plurality of through-holes and of a design distance value of the open position of the leaning through-hole among the plurality of through-holes with respect to a center position of the substrate.

In a conventional electronic device and a method of manufacturing the same, reduction in cost of the electronic device is hindered because resin used in an interconnect layer on the solder ball side is limited. The electronic device includes an interconnect layer (a first interconnect layer) and an interconnect layer (a second interconnect layer). The second interconnect layer is formed on the undersurface of the first interconnect layer. The second interconnect layer is larger in area seen from the top than the first interconnect layer and is extended to the outside from the first interconnect layer.

The present invention relates to methods and systems that utilize a catalyst or thin metal film by atomic level deposition (ALD) of one or more metals that allows fine traces deposition to the trench formed in a dielectric material, thereby minimizing potential physical damage due to embedded conductor format and making the fine space between traces to prevent electromigration in the traces.

A manufacturing method of a double layer circuit board comprises forming a connecting pillar on a first circuit, wherein the connecting pillar comprises a first end, connected to the first circuit, and a second end, opposite to the first end; forming a substrate on the first circuit and the connecting pillar; drilling the substrate to expose a portion of the second end of the connecting pillar, wherein the other portion of the second end of the connecting pillar is covered by the substrate; and forming a second circuit on the substrate and the portion of the second end of the connecting pillar, wherein an area of the first end connected to the first circuit layer is greater than an area of the portion of the second end connected to the second circuit layer.

A method for manufacturing a mode converter including a substrate that is a single member and includes a first main surface, a second main surface opposite to the first main surface, and a micro hole which is formed in the first main surface, grounding conductor layers that are formed on the first main surface and the second main surface, a plane circuit that is formed on the first main surface, and a pin that is formed so as to cover an inner surface of the micro hole and is electrically connected to the plane circuit, the method includes: irradiating the substrate with laser light to form a first modified portion to a desired depth from one main surface of the substrate; removing the first modified portion to form the micro hole; and filling the micro hole with a conductive material to form the pin.

In a wiring base body of a printed wiring board, a conductive post including a wiring portion and a wiring are embedded in an insulating resin film. Therefore, even in a region in which a wiring portion is formed, the wiring base body is not increased in thickness. In addition, even in a region in which a wiring is formed, the wiring base body is not increased in thickness. Therefore, it is possible to obtain a printed wiring board having high flatness by stacking a plurality of wiring base bodies and constituting a printed wiring board.

In a printed wiring board, when a plurality of wiring base bodies are collectively stacked, a constituent material of a first layer of an insulating resin film has a low melting point, so that the first layer is easily melted. Therefore, thermal welding on an upper surface of the wiring base body is reliably performed, and the wiring base bodies are bonded to each other with high reliability.