Abstract:
A connector assembly (28) for mounting a daughter board (20) on a mother board (66) and providing electrical connections therebetween. The connector assembly (28) is made up of a housing (74) mounted on the daughter board (20), a plurality of coaxial cable subassemblies (30), a faceplate member (76) and a cover member (78). The cable subassemblies (30) are held in the housing (74) with their two ends in positions corresponding to contact positions on the daughter board (20) and the mother board (66), with the cable subassemblies (30) being arranged to make a right angle turn. The faceplate member (76) includes a shroud portion (102) which surrounds contact assemblies (38) adapted for matingly engaging corresponding contact assemblies in a housing block (70) which is part of connector assembly (68) mounted on the mother board (66). The shroud portion (102) is sized to surround and frictionally engage the housing block (70). The cover member (78 ) of the connector assembly (28) is configured to position and hold the cable subassemblies (30) so as to protect them from rough handling or accidental shunting.
Abstract:
A connector (28) for use with a printed circuit board (26) and adaptable for single or double sided use as a signal launcher or feed-through, respectively. The connector includes an outer sleeve element (58) and a center contact element (46) which has a support portion (54) extending through an aperture (40) in the printed circuit board. The distal end (68) of the contact element (46) is secured by interference fit with a locking ring (72) on the other side of the circuit board.
Abstract:
A connector assembly (26) for use with a printed circuit board (30) wherein a true coaxial connection is provided. The connector assembly includes a housing block (36) with a plurality of bores (38) aligned with the plated-through apertures (42) of the circuit board. Each of the bores (38) contains a coaxial connector subassembly (50) which provides surface contact with the signal pads (46) and ground pads (48) surrounding the apertures (42).
Abstract:
Connector for a substrate such as an IC chip carrier comprises a housing assembly which in turn comprises a housing frame and a plurality of contact modules on the frame. Each module has a group of contact members therein. The contact members are located in predetermined positions in the frame and within predetermined dimensional tolerances. The housing frame and the substrate have substrate locating means for locating the substrate so that contact pads on the substrate will be in registry with the contact positions. Module locating means are also provided for locating the modules in the frame so that the contact members in the modules will be located in the predetermined positions. Each module has its own locating means which is directly related to the substrate locating means. The contact members in each module are thereby located within cumulative dimensional tolerances which are limited to the respective modules and are not cumulative beyond the individual modules.
Abstract:
The ends of shielded coaxial conductors are connected to each other by a housing assembly comprising two or more housing blocks. The housing blocks have mating faces which are opposed to, and against, each other. The conductors are prepared by stripping the insulation and the shielding from the end and stripping the insulation only from an adjacent portion of each conductor. The stripped ends are in overlapping relationship and are pressed against each other by compressed blocks of plastic material. The plastic compresing blocks are held against the conductors by compressing bars which in turn are urged against the compressing blocks by a compressed elastomeric material. The dielectric constant of the plastic compressing blocks and the spacing between the overlapping stripped ends of the conductors and the surfaces of the compressing bars are selected such that the impedance in the zone of the electrical connection is compatible with the impedance of the cables.
Abstract:
A method and device for compliantly interconnecting a surface mount device or the like to a circuit board is taught. Briefly stated, an interposer having interconnect areas is placed between the circuit board and the device to be surface mounted with interconnect areas disposed between conductive strips on the circuit board and pads contained on the surface mount device. The interconnect area has disposed therein a plurality of fine wires having flux and solder disposed thereon.
Abstract:
Hermaphroditic electrical connector comprises a dielectric housing having terminals therein with resilient contact tongues and shunt means fixed to a dielectric carrier which moves relative to housing in response to mating with a like connector as tongues engage respective like tongues. The shunt means engage portions of the terminals remote from the contact tongues to electrically connect alternate terminals when the connector is in an unmated condition, the shunt means being in unmated relation with the terminals when the connector is mated.
Abstract:
Copper lead frame for manufacturing a semiconductor chip carrier has signal leads extending from outer leads about the periphery of the frame and temporarily attached to a ground bus toward the center of the frame by fusible links. Ground leads extend from bus alternately with signal leads and have fusible links at outer leads which are melted to isolate them from signal leads and eliminate noise between signal leads in finished carrier. A power bus located within the ground bus and a chip mounting pad located with the power bus are similarly positioned by fusible links.
Abstract:
A miniature circuit board edge connector having a very short electrical contact path is taught. Briefly stated, an insulative housing has contained therein a resiliently flexible and electrically conductive contact. A camming device is disposed in the housing and impinges upon the contact and through lateral motion of the cam, urges the contact vertically downward so as to cause downward and outward movement of a portion of the contact with respect to the housing which thereby comes in contact with an electrically conductive path on a daughter board which is adjacent thereto. A portion of the contact is in slidable electrical communication with a conductive post which is mounted in the base of the connector assembly and attached to a mother circuit board. The electrical path between the daughter board circuit board and the mother board conductive post through the contact is very short and in a slightly arcuate manner and minimizes inductive, capacitive and propagation delay effects.
Abstract:
Packaging and interconnecting means for a plurality of microcircuit chips contained in chip carriers comprises a chip carrier socket which is dimensioned to receive a plurality of chip carriers in stacked relationship, one on top of the other. Vertically extending conductors in the socket are contacted by the leads from the chip carriers. In accordance with one embodiment, the several chip carriers are electrically and physically identical and the conductors are shared by all of the chips, excepting one dedicated conductor for each chip carrier. Alternatively, the chips in the chip carriers can be electrically dissimilar in which case only limited numbers of the socket conductors are shared and connections among the several chip carriers in the stack are achieved by interrupting the conductors in the chip carrier socket.