Abstract:
A socket housing and contact assembly process includes forming the solder ball contact region after initial installation of a set of contacts into the housing. The contact regions of the set of contacts pass through corresponding contact cavities to extend beyond the housing and the contact regions are formed over at equal angles for solder ball placement.
Abstract:
An RF connector includes a conductive pin for carrying an RF signal. The conductive pin has a first longitudinal end that serves to interface with a male RF connector to receive the RF signal. The pin also includes a second longitudinal end for connecting with a printed circuit board (PCB). The second longitudinal end may be tapered, and the pin may have a groove formed above the tapered end. A housing encircles the conductive pin. The housing is shaped and sized to accept the male RF connector. A grounding element may be positioned on the bottom of the housing. The grounding element is to contact the PCB when the connector is connected to the PCB. The grounding element may be ring-shaped and soldered to the housing or epoxied to the housing.
Abstract:
A socket housing and contact assembly process includes forming the solder ball contact region after initial installation of a set of contacts into the housing. The contact regions of the set of contacts pass through corresponding contact cavities to extend beyond the housing and the contact regions are formed over at equal angles for solder ball placement.
Abstract:
An electronic circuit contains a circuit board with conducting tracks to which one or more electronic components with conducting contacts are positioned overlying portions of the conducting tracks and each such electronic component is held in place by a clamp that covers and is contact with the top surface of the electronic components so as to hold their conducting contacts in electrical contact with the conducting tracks of the circuit board. The clamp can include a resilient layer held between the top surface of electronic components and a rigid clamping sheet.
Abstract:
A bonding portion of a connector terminal includes embossed portions and a slit. Each embossed portion is formed by embossing the bonding portion in a thicknesswise direction of the bonding portion to provide an embossed recess on one of opposed sides of the bonding portion. Each embossed recess communicates opposed open ends of an elongated hole provided in a circuit board with each other when the bonding portion is inserted to a predetermined position in the elongated hole. The slit penetrates through the bonding portion. The slit extends over at least one of the opposed open ends of the elongated hole in the thickensswise direction of the circuit board when the bonding portion is inserted to the predetermined position in the elongated hole.
Abstract:
A semiconductor package and method for fabricating the package are provided. The package includes a semiconductor die and a heat sink in thermal communication with the die. The heat sink includes one or more pad structures adapted to form bonded connections, and thermal paths to contacts on a substrate. The method includes forming multiple heat sinks on a frame similar to a lead frame, and etching or stamping the pad structures on the heat sink. The frame can then be attached to a leadframe containing encapsulated dice, and the assembly singulated to form separate packages. The packages can be used to form electronic assemblies such as circuit board assemblies and multi chip modules.
Abstract:
An electrical connector includes a housing and an array of terminal members having posts extending from the housing and adapted for insertion into through-holes of a circuit board. At least one board retention means is formed on at least one of the posts and is axially located a selected distance from the lower surface of the housing to be within a corresponding through-hole after insertion. The retention means is a swage defining wall engaging surfaces for engaging sidewalls of a respective through-holes during mounting of the connector to board. The swage is formed such that the far side of the post remains coplanar with the axially adjacent surfaces and a swage embossment extends laterally outwardly from at least the second side, the embossment being formed by the work end of a tool striking the third side at an angle. In the preferred embodiment, there are at least two swaged posts with embossment of the first terminal extending outwardly in a first direction and the embossment of the second post extending in a second opposing direction. The retention means of the first and second posts engage wall surface within respective through-holes with spring bias applied in opposite directions thereby defining means for temporarily securing the connector to the board prior to soldering.
Abstract:
A compliant pin terminal inserted into a through hole, such as a center hole of a feed-through capacitor or a through hole of a circuit substrate having an electrode at the inner periphery thereof, is mounted into the through hole for electrically connecting with the electrode therein. The pin terminal includes slits, by which linear divided portions and expanded elastic contact portions are formed so that when the body is inserted into the through hole of the capacitor the elastic contact portions come into press-contact with the electrode, thereby obtaining electrical connection with the electrode and mechanical locking by means of the elasticity of each elastic contact portion. A lengthwise pulling force acting on the terminal body is borne by the linear divided portions, but does not act on the elastic portions. Accordingly, an interval between the elastic contact portions opposite to each other resists change, thereby effectively preventing the pin terminal from escaping from the through hole.
Abstract:
A transmitter-receiver unit is disclosed wherein a frame is provided with solder-rise preventing means (H) between a circuit board (1) and retaining portions (4c), thereby preventing solder from rising up to the retaining portions. Thus, the engagement between engaging holes and the retaining portions is ensured in comparison with the prior art. The transmitter-receiver unit permits a cover to be mounted positively to the frame and is suitable for the reduction of size and weight.
Abstract:
PURPOSE: To provide a transmitter-receiver unit, in which a cover can be attached surely to a frame and which is suitable for miniaturizing and making it light-weight. CONSTITUTION: In this transmitter-receiver unit, a solder-rise preventing means H is installed at the frame 4 between a circuit board 1 and a book and stop part 4c. The rising of solder 5 is prevented by the solder-rise preventing means H, and the solder 5 will not reach the hook or stop part 4c. As a result, it is possible to provide a transmitter-receiver unit, in which a coupling part 6c can be coupled surely to the hook and stop part 4c, as compared with the conventional cases.