A circuit board structure includes a dielectric substrate, at least one embedded block, at least one electronic component, at least one first build-up circuit layer, at least one second build-up circuit layer, at least one conductive through hole, and a fine redistribution layer (RDL). The embedded block is fixed in a through cavity of the dielectric substrate. The electronic component is disposed in an opening of the embedded block. The first build-up circuit layer is disposed on a top surface of the dielectric substrate and electrically connected with the electronic component. The second build-up circuit layer is disposed on a bottom surface of the dielectric substrate and covers the embedded block. The conductive through hole is disposed in a via of the embedded block and electrically connects the first and the second build-up circuit layers. The fine RDL is disposed on and electrically connected to the first build-up circuit layer.

A printed circuit board includes: a substrate structure having a first surface including a chip mounting region on which a semiconductor chip is mounted and a second surface opposite to the first surface, the second surface having a rectangular shape having first to fourth edges and first to fourth corners formed by the first to fourth edges, and pad patterns on the second surface of the substrate structure, wherein the second surface includes a first region including a region corresponding to the chip mounting region and in contact with the first to fourth edges, respectively, and second regions adjacent to the first to fourth corners, respectively and spaced apart from each other by the first region, wherein the pad patterns include first pad patterns in the first region and surface-treated with a nickel/gold (Ni/Au) layer, and second pad patterns in the second regions and surface-treated with an organic solderability preservative.

A component includes a plurality of electrical connections on a process side opposed to a back side of the component. Each electrical connection includes an electrically conductive multi-layer connection post protruding from the process side. A printed structure includes a destination substrate and one or more components. The destination substrate has two or more electrical contacts and each connection post is in contact with, extends into, or extends through an electrical contact of the destination substrate to electrically connect the electrical contacts to the connection posts. The connection posts or electrical contacts are deformed. Two or more connection posts can be electrically connected to a common electrical contact.

Disclosed are a circuit board and its preparation method. The circuit board includes a base layer, a transmission wire layer including multiple conductor tabs, and an insulating and thermally conductive layer including multiple thermally conductive portions. A gap is defined between each adjacent two of the multiple conductor tabs to expose at least a portion of the base layer, and the gap is filled with a corresponding thermally conductive portion. A height of the thermally conductive portion is larger than heights of each adjacent two of the multiple conductor tabs to define a connection groove. The circuit board the disclosure providing enhances heat dissipation performance of circuit boards.

A light-emitting module includes (i) a board provided with: a circuit pattern and a plurality of bottomed holes in each of a set of wiring pads continuous with the circuit pattern on a first surface; electrically conductive paste extending over two or more of the bottomed holes; and an insulating resin covering the electrically conductive paste at a side close to the first surface, and (ii) a plurality of light-emitting segments connected to a second surface of the board with an adhesive sheet interposed therebetween. The light-emitting segments each include a plurality of light-emitting devices that are aligned. The electrically conductive paste includes a portion disposed on a portion of a surface of the wiring pad extending over two or more of the bottomed holes.

A wiring board includes a pad configured to make an external electrical connection, and an insulating layer. A portion of a lower surface of the pad is covered with the insulating layer. The pad includes a base portion, and an extending portion formed integrally with the base portion and extending toward an outer periphery of a side surface of the base portion in a plan view at a lower end of the side surface of the base portion. The insulating layer is provided with a groove that is located in a periphery of the pad in the plan view, exposes a side surface of the pad, and opens to an upper surface of the insulating layer.

A board mount connector includes: a housing having a press-fitting hole; and a terminal press-fitted into the press-fitting hole. The terminal includes: a first terminal portion including a first contact portion contacting and conductively connected to the counterpart terminal when the first contact portion is connected to the counterpart terminal, and a press-fitting portion that is press-fitted into the press-fitting hole; and a second terminal portion including a bent portion extending from the first terminal portion and bent around a bending axis along an axis line of the first terminal portion, and a second contact portion located at a position offset from the first contact portion in an intersecting direction intersecting the axis line of the first terminal portion and conductively connected to the conductor pattern when the boar mount connector is mounted on the circuit board.

A wiring substrate includes an insulating layer, and a build-up part formed on the insulating layer and including an interlayer insulating layer and a conductor layer. The build-up part has a cavity penetrating through the build-up part such that the cavity is formed to accommodate an electronic component and has an inner wall and a bottom surface having a groove and that the groove is extending entirely in an outer edge part of the bottom surface and formed continuously from the inner wall surface of the cavity.

An object of the present invention is to provide a technique capable of suppressing displacement of an electronic component and a solder ball without using a jig. A semiconductor device includes an insulating substrate, an electronic component, and solder. A metal pattern and a semiconductor element are disposed on the insulating substrate. The metal pattern has a first recess and a second recess that are provided side by side. A part of the electronic component is disposed in the first recess. The solder connects the metal pattern disposed on the insulating substrate and the electronic component.

The invention provides a semiconductor package and a method for fabricating a base for a semiconductor package. The semiconductor package includes a conductive trace embedded in a base. A semiconductor device is mounted on the conductive trace via a conductive structure.