A printed circuit board includes a first electrically conductive reference plane configured to distribute a first reference voltage applied thereto across a surface area of the first reference plane, and a second electrically conductive reference plane extending parallel to the first reference plane, and configured to distribute a second reference voltage applied thereto across a surface area of the second reference plane. A first layer is provided, which extends between the first reference plane and the second reference plane, and includes one or more first signal lines extending adjacent the first reference plane. The first layer is divided into: (i) a first region in which the one or more first signal lines are disposed, (ii) a second region containing an additional plane that is configured to receive a third voltage and has smaller surface area relative to the surface areas of the first and second reference planes, and (iii) a third region containing a dielectric layer. A second layer is provided, which extends between the first reference plane and the second reference plane, and includes one or more second signal lines extending adjacent the second reference plane. The second signal lines have linewidths that vary as a function of whether they are vertically aligned with the first region, the second region, or the third region.

Various embodiments described herein provide a label configured for thermal conductivity and configured to pass over an edge of a printed circuit board (PCB) and attached to both sides of the printed circuit board. The label can be used with a printed circuit board that is associated with a memory sub-system, such as a memory module (e.g., solid state drive, SSD module).

The present disclosure provides a semiconductor device package. The semiconductor device package includes a substrate having a first surface and a second surface opposite to the first surface, an optical device disposed on the first surface of the substrate, and an electronic device disposed on the second surface of the substrate. A power of the electronic device is greater than a power of the optical device. A vertical projection of the optical device on the first surface is spaced apart from a vertical projection of the electronic device on the second surface by a distance greater than zero.

A current introduction terminal includes a board made of resin. The board has a first face and a second face opposite each other. The board hermetically separates environments of different air pressures from each other. A plurality of through via holes corresponding both to a plurality of metal terminals of a first surface-mount connector to be mounted on the first face and to a plurality of metal terminals of a second surface-mount connector to be mounted on the second face are formed to penetrate between the first and second faces, and then hole parts of the through via holes are filled with resin.

A charger having a heat insulating structure is provided. The charger includes: a case having one side at which an opening is formed and the other side to which a terminal portion is coupled; a printed circuit board having a front surface and a rear surface on which electronic components are mounted, respectively, and inserted into the case through the opening of the case; a heat insulating member disposed inside the case and formed to cover the electronic components mounted on the rear surface of the printed circuit board to block heat generated from the electronic components of the printed circuit board from being transferred to an entire surface of the case; and a cover closing the opening of the case.

A printed circuit board includes a first insulating layer; a first wiring layer having at least a portion buried in one surface side of the first insulating layer and having at least a portion of one surface exposed from the one surface of the first insulating layer; a metal post disposed on the exposed one surface of at least the portion of the first wiring layer; and a second wiring layer disposed on the other surface of the first insulating layer. A width of a first surface, connected to the exposed one surface of at least a portion of the first wiring layer, of the metal post, is greater than a width of a second surface of the metal post opposing the first surface.

A module includes a substrate having a first surface, components as one or more components mounted on the first surface, a resin film covering the one or more components along a shape of the one or more components and covering part of the first surface, a first shield film formed to overlap the resin film, and a first sealing resin as a sealing resin disposed to cover the first surface, the one or more components, and the first shield film. A stack including the resin film and the first shield film has a first opening. A first columnar conductor is disposed to be electrically connected to the first surface through the first sealing resin and the first opening. The first shield film is electrically connected to the first columnar conductor in the first opening.

A module includes: a substrate having a first surface; a first component mounted on the first surface; a resin film that covers the first component along a shape of the first component, and also covers a part of the first surface; a conductor film that covers at least a part of the resin film along the shape of the first component, and covers at least a part of a portion in which the resin film covers the part of the first surface; and a conductor structure disposed to extend over a part of the resin film. The conductor structure includes a first end portion, a second end portion, and an intermediate portion. The first end portion and the second end portion are connected to the first surface. The intermediate portion is in contact with the conductor film.

A power adapter includes a circuit board, an electromagnetic interference filter, a shielding element, a power factor correction (PFC) inductor, a transformer and heating elements. The circuit board has a front side and a back side corresponding to each other, and a first long side and a second long side parallel to each other. The front side of the circuit board is divided into a first region, a second region and a third region along an extending direction of the first long side. The electromagnetic interference filter is disposed in the first region and close to the first long side. The shielding element is disposed in the first region and close to the electromagnetic interference filter. The PFC inductor is disposed in the first region of the circuit board and close to the second long side. The PFC inductor has a first long axis. The transformer is disposed in the third region and close to the first long side. The transformer has a second long axis, and the first long axis is perpendicular to the second long axis. The heating elements are disposed at the back side of the circuit board.

A power module includes a power source module and a metallic heat-dissipation substrate. The power source module has an input pin and an output pin soldered on and electrically connected with a system board and includes a printed circuit board. The printed circuit board has a first surface and a second surface. At least a heat-generating component is disposed on the second surface. The metallic heat-dissipation substrate has a first surface and a second surface opposite to each other. The first surface has at least a fixing position and at least a heat-dissipating position. The fixing position is directly or indirectly connected with the second surface. A gap accumulated by tolerances is existed between the heat-dissipating position and the heat-generating component. A gap-filling material is filled into the gap. The second surface and the system board are soldered with each other. Therefore, the heat-dissipation efficiency is enhanced.