Abstract:
A wiring board has an insulation base plate, and a plurality of electrodes provided adjacent to each other in plan view on the insulation base plate, the electrodes have an opening in the outer periphery and a slit oriented from the outer periphery to the interior, and, among two electrodes adjacent to each other, the slit in one electrode has a central line intersecting the outer periphery of the other electrode.
Abstract:
A method of manufacturing is provided that includes singulating a circuit board from a substrate of plural of the circuit boards, wherein the circuit board is shaped to have four corner hollows. The corner hollows may be various shapes.
Abstract:
A printed wiring board used to suppress parasitic component is provided. The printed wiring board 100 includes a multi-layer substrate 110, and a power line 50 laid on the multi-layer substrate 110 and connected with a power terminal row T11a-T11d of a semiconductor device 10. The power line 50 includes a first wiring pattern 51 formed on a surface of the multi-layer substrate 110, a second wiring pattern 52 formed within the multi-layer substrate 110, and interlayer connections 53x and 53y electrically conducting the first wiring pattern 51 and the second wiring pattern 52 to bypass at least a portion of the power terminal row T11a-T11d.
Abstract:
An assembly includes a circuit board and a flexible flat cable. The circuit board includes a board body having top, bottom and side faces, and a connection module. The board body is formed with a positioning slot that is formed through the top and bottom faces and that has a first length, and an opening that extends from the side face and that is in spatial communication with the positioning slot. The opening is formed through the top and bottom faces and has a second length shorter than the first length. The flexible flat cable includes a connection unit and a cable main body that has a width greater than the second length. The cable main body is able to pass through the opening, and extends through and is positioned in the positioning slot.
Abstract:
An LED lamp has a PCB at least partially made of metal and a base configured to receive the PCB in a slot formed on the base. The base has a base top surface and the slot has a tapered cross-section. A first sidewall is formed in the slot. The first sidewall is formed at a first sidewall angle that is less than 90°. A second sidewall is formed in the slot. The second sidewall is formed at a second sidewall angle. A top protrusion is formed on a base top surface. The top protrusion has a top protrusion first position and a top protrusion second position. A pair of edges are formed on the PCB, namely a first edge formed on the PCB and a second edge formed on the PCB. The first edge is tapered to engage the first sidewall.
Abstract:
An electrical connector includes a printed circuit board that includes a body that carries a plurality of ground conductors that define respective ground contact pads, and a plurality of signal conductors that define respective signal contact pads. The contact pads are configured to mate with electrical contacts of a complementary electrical connector. The printed circuit board includes a ground coupling assembly that electrically connects at least a pair of the ground conductors.
Abstract:
A wiring board has an insulation base plate, and a plurality of electrodes provided adjacent to each other in plan view on the insulation base plate, the electrodes have an opening in the outer periphery and a slit oriented from the outer periphery to the interior, and, among two electrodes adjacent to each other, the slit in one electrode has a central line intersecting the outer periphery of the other electrode.
Abstract:
An ultra-high vacuum (UHV) compatible feedthrough structure and a detector assembly using such feedthrough structure, the feedthrough structure comprising a printed circuit board (PCB) for carrying one or more detectors, wherein said PCB comprises a top surface covered with a first UHV sealing layer and one or more first electrical electrodes and at least a first thermally conductive layer extending at least partly over said top surface; and, a back surface comprising one or more second electrodes and at least a second thermally conductive layer extending at least partly over said back surface, wherein one or more conductive wires are embedded in said PCB for electrically connecting said one or more first electrodes with said one or more second electrodes respectively; and, wherein one or more thermally conductive vias are embedded in said PCB for thermally connecting said at least first thermally conductive layer with said second thermally conductive layer.
Abstract:
A printed circuit board and a manufacturing method thereof. According to one embodiment, a printed circuit board may include a core part; and a conductor pattern disposed on at least one surface of the core part, the core part includes a glass core having a side portion that is polished or thinner than a central portion of the core. According to another embodiment, a method of manufacturing the printed circuit board may include cutting a glass plate to form a glass core; and removing cracks from at least one side surface of the cut glass core.
Abstract:
One embodiment provides a circuit board having a substrate and an electrode portion which is provided on the substrate. The electrode portion includes: a quadrangular land which is provided on a front surface of the substrate; a solder layer which is laminated on the whole of a front surface of the land; and a pad which is joined to a front surface of the solder layer. When the electrode portion is seen from thereabove, an outer circumferential line of the pad touches each of four sides of the land. Exposed portions where the solder layer is exposed are formed individually at four corners of a front surface of the electrode portion. And, the exposed portions are formed to have the same shape.