Abstract:
A circuit board includes: a substrate; a through hole formed in the substrate; and a connection terminal provided in the through hole; wherein the connection terminal includes a pedestal portion provided within the through hole and a pin which is provided at a center of the pedestal portion and extends from the pedestal portion toward a first surface of the substrate, so that a first end portion protrudes from the first surface.
Abstract:
The invention relates to a PCB connector for fastening a first printed circuit board on a second printed circuit board. The PCB connector may have a longitudinal base body with a clamping and fastening device for tool-free fastening of the PCB connector on a printed circuit board. The clamping and fastening device has a put-through body and a spring body which is formed extendable upon putting-through the put-through body through the land. The base body is thus pressed against the printed circuit board by the spring body.
Abstract:
An apparatus may be provided. The apparatus may comprise a circuit board and a bore. The circuit board may have a component side surface and a bottom side surface. The bore may be disposed in the circuit board. The bore may extent from the component side surface to the bottom side surface. The bore may comprise a first portion and a second portion. The first portion may have a first diameter. The second portion may be disposed between the first portion and the component side surface. The second portion may have a second diameter greater than the first diameter.
Abstract:
An electrical connector includes an insulating body having a bottom surface, a receiving groove formed in the bottom surface, and at least one support block projecting downwardly from the bottom surface for connection with a circuit board and cooperating with the bottom surface to define a venting space that communicates with the receiving groove and a solder hole in the circuit board. A conductive terminal includes a first positioning portion extending into and positioned in the receiving groove, and a second positioning portion connected to the first positioning portion and extending through the venting space and adapted to be positioned in the solder hole.
Abstract:
An eye-of-the needle (EON) pin contact is provided for being received within an electrical via that includes conductive material. The EON pin contact includes a compliant segment having two opposing spring arms and an opening defined between the spring arms. The compliant segment is configured to be received within the electrical via such that the spring arms engage the conductive material of the electrical via. A tip segment extends from the compliant segment. The tip segment is configured to be received into the electrical via before the compliant segment is received into the electrical via. The tip segment includes a broach that is configured to displace the conductive material as the tip segment is received into the electrical via to plow a path through the conductive material for reception of a corresponding one of the spring arms.
Abstract:
A universal press-fit connection allows a component having a connector pin to be connected to a compatible plated through hole of a circuit board regardless of circuit board thickness. The connector pin includes a proximate end adjacent the component, a distal end with a fork lock, and a compliant portion between the proximate and distal ends. A multi-width through hole includes a first portion partially extending through the circuit board and a second, wider portion extending beyond the first portion. The fork lock initially moves radially inward upon insertion into the first portion via flexing of the compliant portion, and re-expands when entering the second portion. The compliant portion engages the through hole and the fork lock secures the connector pin in the through hole.
Abstract:
A probe card assembly includes a probe card, a space transformer having resilient contact structures (probe elements) mounted directly to (i.e., without the need for additional connecting wires or the like) and extending from terminals on a surface thereof, and an interposer disposed between the space transformer and the probe card. The space transformer and interposer are “stacked up” so that the orientation of the space transformer, hence the orientation of the tips of the probe elements, can be adjusted without changing the orientation of the probe card. Suitable mechanisms for adjusting the orientation of the space transformer, and for determining what adjustments to make, are disclosed. The interposer has resilient contact structures extending from both the top and bottom surfaces thereof, and ensures that electrical connections are maintained between the space transformer and the probe card throughout the space transformer's range of adjustment, by virtue of the interposer's inherent compliance. Multiple die sites on a semiconductor wafer are readily probed using the disclosed techniques, and the probe elements can be arranged to optimize probing of an entire wafer. Composite interconnection elements having a relatively soft core overcoated by a relatively hard shell, as the resilient contact structures are described.
Abstract:
Products and assemblies are provided for socketably receiving elongate interconnection elements, such as spring contact elements, extending from electronic components, such as semiconductor devices. Socket substrates are provided with capture pads for receiving ends of elongate interconnection elements extending from electronic components. Various capture pad configurations are disclosed. Connections to external devices are provided via conductive traces adjacent the surface of the socket substrate. The socket substrate may be supported by a support substrate. In a particularly preferred embodiment the capture pads are formed directly on a primary substrate such as a printed circuit board.
Abstract:
A light source unit including light emitting diodes mounted on a printed circuit board by not using a soldering method but a fitting method, and a backlight unit and liquid crystal display including the light source unit. The light source unit includes light emitting diodes including lead terminals and a printed circuit board including a fitting hole. Each of the lead terminals includes a base part and a fitting part protruding from the base part. The fitting part of the light emitting diode is fitted into the fitting hole of the printed circuit board and so that the light emitting diode is mounted on the printed circuit board.
Abstract:
Contact structures exhibiting resilience or compliance are formed. The contact structures may be formed on a sacrificial substrate. The contact structures are attached to an array of electrical connections on a substrate to form a contact assembly. The electrical connections on the substrate may be metallic pads.