Abstract:
An EMI-resistant circuit board assembly includes a plurality of circuit boards arranged in a stack and a metal shielding frame respectively sandwiched in between each two adjacent circuit boards. One of the circuit boards has at least one high-speed device producing high-frequency noises to the ambient, which result in EMI effect. The metal shielding frame is electrically connected to the ground potential of the circuit boards and shields the high-speed device on the circuit board to guide the high-frequency noises to the ground potential.
Abstract:
Multiple fully buffered DIMM circuits or instantiations are presented in a single module. In a preferred embodiment, memory integrated circuits (preferably CSPs) and accompanying AMBs are arranged in two ranks in two fields on each side of a flexible circuit. The flexible circuit has expansion contacts disposed along one side. The flexible circuit is disposed about a supporting substrate or board to place one complete FB-DIMM circuit or instantiation on each side of the constructed module. In alternative but also preferred embodiments, the ICs on the side of the flexible circuit closest to the substrate are disposed, at least partially, in what are, in a preferred embodiment, windows, pockets, or cutaway areas in the substrate. Other embodiments may only populate one side of the flexible circuit or may only remove enough substrate material to reduce but not eliminate the entire substrate contribution to overall profile. The flexible circuit may exhibit one or two or more conductive layers, and may have changes in the layered structure or have split layers. Other embodiments may stagger or offset the ICs or include greater numbers of ICs.
Abstract:
A fence is configured to receive and align a semiconductor device, such as a flip-chip type semiconductor device, with a substrate. The fence may include a plurality of adjacent, mutually adhered regions, which may comprise layers. One or more laterally recessed regions may be located at one or more corners of a receptacle formed by the fence to facilitate rough alignment of a semiconductor device with the substrate. The receptacle of the fence may include edges that are configured to progressively align a semiconductor device with the substrate.
Abstract:
Disclosed is an improved connector assembly whose four connectors can be fixed to and left on a substrate in square shape in the state of being independent from each other, thus preventing any bending or twisting of one of the connectors from adversely affecting the connection terminals of the other connectors. It comprises an assembly frame 20 comprising a square frame 21 with an engagement formed at each corner, and four connectors 30 arranged on one surface of the square frame 21. Specifically each connector 30 is laid on a selected straight side to form the square shape. It comprises a rod-like terminal support 31 having connection terminals 32 parallel-arranged and fixed to its substantial length. The rod-like terminal support 31 has a complementary engagement formed on each end to detachably accommodate the engagement of each corner of the square frame 21, thus providing an integral combination of the assembly frame 20 and the connectors 30, which can be separated from each other.
Abstract:
A modular heat sink decoupling capacitor array includes a plurality of modules, each defining parallel distributed decoupling plates, and each module forming a heat sink fin. Each module includes multiple spaced apart contacts for providing low inductance connections with an associated device. A power distribution interposer module is attached to a heat sink surface of the modular decoupling capacitor. The interposer module is used for implementing power delivery without using valuable ball grid array (BGA) connections and printed circuit board (PCB) layers.
Abstract:
A display is provided that can prevent uplift of a flexible printed circuit board due to flexure deformation of the flexible printed circuit board. The display includes: a display panel; a frame that houses the display panel; a backlight source that is disposed on the backside of the display panel; and a first flexible printed circuit board for backlight that is electrically connected to the backlight source, and extends from the inside of the frame to the outside of the frame. The frame has an uplift preventing member that prevents uplift of the first flexible printed circuit board.
Abstract:
A display includes: a display panel; a flexible printed circuit board that is attached to the display panel at a first height; and a frame that has the display panel disposed therein. The frame includes a guide portion that pulls the flexible printed circuit board to the outside of the frame, with the height of the flexible printed circuit board being varied from the first height to a second height by bending the flexible printed circuit board.
Abstract:
A small package is provided for a flash EEPROM memory. The small package uses terminals which are part of a bottom conductive layer of a circuit board. In this manner, the final package can be quite thin. The circuit board can be connected to the integrated circuits and passive devices and can be encapsulated in plastic or glued to a plastic cover. In this manner, a thin and relatively inexpensive package can be formed. Additionally, the circuit board can have testing connections which can be removed before forming the final package.
Abstract:
An electrical device 1 for interconnecting two printed circuit boards 2, 3 (PCBs) at a large distance includes a first connector 4 and a second connector 5 for being respectively mounted on the two PCBs, and an extender 6 located between and electrically connected with the first and second connectors. The extender includes a frame 7 for being fixed to one PCB, and two circuit boards 8, 9 attached to the frame and connecting with the first and second connectors at opposite ends thereof.
Abstract:
A communication module. The communication module comprises at least one supporting structure, at least one first electronic component, and at least one connecting pad. The supporting structure comprises a first surface and a hollow portion. The first electronic component is disposed in the hollow portion. The connecting pad is disposed on the first surface and electrically connected to the first electronic component.