Abstract: A differential signal connector that is used for edge card application has a plurality of differential signal terminals and associated ground terminals arranged in “triplets”, i.e., distinct sets of three conductive terminals, each such triplet including a pair of differential signal terminals and one associated ground terminal. The ground terminal is flanked by the two differential signal terminals and each triplet is spaced apart from an adjacent triplet by a spacing which is greater than any single spacing between adjacent terminals within a triplet. Circuit boards to which such a connector is mounted are also disclosed and they have a particular pattern of termination traces, commonly taking the form of plated vias extending through the circuit board. These vias are arranged in a triangular pattern and the ground reference plane of the circuit board is provided with voids, one void being associated and encompassing a pair of the differential signal vias of a single terminal triplet.

Abstract: A memory module architecture that supports Flash and static memory devices in addition to dynamic memory devices. The module architecture of the present invention preferably redefines standard application of chip select signals on existing module architectures to provide requisite signaling to support Flash and static RAM devices. Use of serial presence detect signaling features of standard memory modules is also modified to provide desired identity and parameters of such an enhanced module. Extending the range of supported memory devices in an otherwise standard memory module reduces the need for special designs to accommodate different and evolving types of memory and is therefore particularly applicable to embedded systems where a variety of memory types are often utilized.

Abstract: A method of assembling an electrical connector (1) comprises the steps of: preparing a dielectric housing (2) defining a plurality of insertion slots therein; preparing a conductive contact strip (3a) comprising a plurality of contacts (3) and a carrier (3b) connecting with the contacts; preloading the contact strip into the housing; inserting a spacer (5) into the dielectric housing to position the contact strip, the spacer being inserted between an inner side surfaces (210) of the housing and mating portions (31) of the contacts; pulling the contact strip downwardly via a tool (4) gripping slots (35) defined in opposite sides of end portions (36) of the contacts; removing the spacer from the dielectric housing; severing the carrier and end portions of the contact strip; and bending mounting portions (34) of the contacts in an alternating manner.

Abstract: A contact system includes at least one opposed pair of contacts. Each of the contacts has a resilient rear leg, a guide section extending from the rear leg, and a contact interface extending from the guide section. The contact interface includes a furcated surface adapted to establish multiple points of contact with a mating contact interface. The furcated surface includes a first contact beam and a second contact beam separated by a slot. At least one contoured footing extends from one of the first and second contact beams to establish multiple contact points with a mating interface.

Abstract: An electronic device containing an electronic element such as a thermistor element is produced first by providing the element with electrodes formed on its two main surfaces facing outward away from each other, at least two terminals and a casing. Each terminal has a contact part for contacting one of the electrodes and an extended part extending from the contact part. The contact part of at least one of the terminals is elastic and bendable. The terminals and the electronic element are inserted into the casing either sequentially or simultaneously as an assembly in any of the ways such that the electrodes on the electronic element are not rubbed directly against the contact parts of the terminals. This may be done by disposing flexible guide plates over the contact parts such that the electrodes will glide over these guide plates as the electronic element is inserted after the terminals are installed inside the casing.

Abstract: An enhanced memory module assembly comprises a memory module including a substrate with a plurality of conductive traces arranged in an edge thereof. A first connector is detachably and electrically assembled to the edge of the substrate and includes a first housing having an elongate slot extending along a longitudinal direction thereof. The housing further defines a plurality of terminal cell with a plurality of first terminals assembled therein. Each terminal includes a first end extending into the elongate slot for electrically contacting with the conductive traces, and second end. A second connector is electrically connected to the first connector and includes a second housing. The first and second terminals are electrically connected when the first and second connectors are mated.

Abstract: An electrical connector (1) includes an elongated insulative housing (10) and a number of contacts (20). The insulative housing includes a base portion (11), a pair of opposite first and second lengthwise walls (12, 13) extending from the base portion. The first lengthwise wall has a first and a second mating sections (121, 122) and defines a recess (120) between the first and second mating sections. The second lengthwise wall has a third mating section (131) protruded from an outer face thereof. The first, the second and third mating sections each defines a number of passageways (103) extending therethrough. The contacts includes first, second and third contacts (21, 22, 23) respectively received in passageways of the first, the second and the third mating sections.

Abstract: An electrical connector is provided including an electrical connector having a housing with a front end configured to receive a circuit board and a rear end configured to receive at least one flexible cable. The electrical connector includes top and bottom contacts retained in alignment along a vertical axis in corresponding channels in the housing. At least one of the top and bottom contacts has a first contact prong configured to engage the circuit board and a second contact prong configured to engage the at least one flexible cable. The electrical connector includes a stuffer received at the second end of the housing that is configured to retain the at least one flexible cable in contact with the second contact prong.

Abstract: A board mounted electrical connector includes a dielectric housing for mounting on a printed circuit board. An elongated solder bar of solderable material is secured at a bottom face of the housing for mechanically fixing the housing to appropriate solder pad on the board. The elongated solder bar has opposite ends and air vent openings spaced between the opposite ends to facilitate air flow during a soldering process.

Abstract: The module-type connector according to the present invention defines the connectable connectors with a rigid supporting plate which extends along the connecting direction in order to make it easy to properly fit a male connector to a female connector. In the module-type connector, the contacting portions of the contacts that are shifted in the separation direction of the corresponding terminal with which the contacting portions contact are almost uniformly distributed. Further, the male connector that receives a preliminary load from different levels in the direction so that opposing elastic contacting portions are widened by engaging between the first end portion of each contact within a housing and the different levels of the housing, has at least a protruding portion that protrudes from the contacting surface of the plurality of contacts toward the contacting surface thereof and that is provided between contacts.

Abstract: A horizontal electric connector includes an insulating housing, a first electric contact, with a contacting part that is press-fitted into the housing from the rear and contacts a counterpart conductive part, and a leg that extends from the contacting part, comes out of the housing at the rear and descends, and a second electric contact, with a contacting part that is press-fitted into the housing from the rear at a position lower than the first electric contact and contacts a counterpart conductive part, and a leg that extends from the contacting part, comes out of the housing at the rear and extends forward along the bottom of the housing. A leg supporting part is provided on the bottom of the housing, into which the leg of the second electric contact is press-fitted from the rear, to prevent deformation of the leg.

Abstract: A stacked connector assembly (10) includes a first connector (12) and a second connector (14) vertically stacked on the first connector. The first connector includes a first housing (16) and a number of first terminals (20) arranged in the first housing. The second connector includes a second housing (51), a number of second terminals (58) received in the second housing and a grounding member (78) attached to a rear portion of the second housing. The grounding member has a front engaging portion (810) projecting forwardly beyond the second housing for mating with a corresponding ground contact of a complementary electrical connector and a base portion (80) projecting rearwardly beyond the second housing. A spacer (36) attached to a rear end of the stacked connector assembly has an upper portion (361) receiving the second terminals therethrough and a lower portion (362) receiving the first terminals therethrough.

Abstract: A terminal fitting (T) has a base wall (13) and side walls (16L, 16R) that extend from opposite sides of the base wall (13). A resilient contact piece (15) projects up and back from a front end of the base wall (13) and between the side walls (16L, 16R). A lean-preventing plate (20) extends from the first side wall (16L) and contacts the inner surface of the second side wall (16R) at a location obliquely forward of and above the front end of the resilient contact piece (15) to prevent the side walls (16L, 16R) from leaning.

Abstract: A module and a corresponding connector that include multiple rows of contacts is described. In one embodiment, the module may include a channel formed in a bottom edge of the module. A plurality of contacts may be disposed on the inner surface of the channel and the outer surface of the module. A complementary connector is also described.

Abstract: Each the contact terminal includes a plurality of contact units stacked with each other, wherein contact point sections of the respective contact units are distributed to disperse in lengthwise direction of the contact terminal within the corresponding contact pad. The distal end of the innermost contact unit in the plurality of stacked contact units extends to a position at which it is not entangled with the distal end of the adjacent contact unit.

Abstract: Each of the contacts comprises a plurality of stacked contact pieces. The contact portions of each of the stacked contact pieces are allocated in the direction of the length of the contact within a size of the corresponding pad. This arrangement can minimize a temperature rise in the contact.

Abstract: A card edge connector (1) comprises an elongated dielectric housing (10) having a card-receiving face (11), a plurality of terminals, a plurality of board locks (15), and at least one conductive wire (30). An elongated central slot (12) is defined in the card-receiving face generally along a longitudinal axis of the housing for receiving a card edge therein. The terminals comprise a plurality of signal terminals (40) and power terminals (20). The signal and power terminals are received in the housing in a predetermined pattern for electrically connecting with contact pads on the card edge. The at least one wire is received in the housing and interconnects the power terminals. The at least one wire contacts the board locks which are to be connected with power circuitry of the printed circuit board, whereby power of the printed circuit board can be transmitted to the power terminals through the board locks and the wire.

Abstract: A contact (1) comprises a main portion (11,) a pair of retaining portions 13 extending from a pair of ends of the main portion and substantially perpendicular to the main portion, a pair of compressive tail portions (15) extending from the retaining portions, a pair of arms (14) expending upwardly from top ends of the retaining portions, a pin-like tail portion (12) extending downwardly from the main portion.

Abstract: A socket connector and a card-edge is provided for electrical busses. In one embodiment, a socket is provided for electrical busses that require each end of the bus to be terminated that does not require a termination card. In another embodiment, a socket connector is provided for electrical busses that flow through several aligned socket connectors. The design of the socket connector connects a bus to termination resistors located on a circuit board of the socket connector by cross-connecting the signal through the signal pins inside the socket connector.

Abstract: When the memory board is not mounted onto the contact terminal group in the body section, the upper portion of the connecting section in the contact terminals located in a midportion of the contact terminal group abut, respectively, to the upper periphery of the gap-adjustment wall section at a predetermined pressure, and the upper portions of the connecting sections of the contact terminals located at the opposite ends of the contact terminal group abut, respectively, to the outer periphery of the adjustment end sections of the hook members.

Abstract: Termination assemblies for terminating high-frequency data signal transmission lines include housings with one or more cavities that receive ends of the transmission line therein. The transmission line typically includes a dielectric body and a plurality of conductive elements disposed thereon, with the plurality of conductive elements being arranged in pairs for differential signal transmission. The termination assemblies, in one embodiment include hollow end caps that are formed from a dielectric and which have one or more conductive contacts or plated surfaces disposed on or within the cavity so that they will frictionally mate with the conductive traces on the transmission line. In another embodiment, a connector housing is provided with a center slot and a plurality of dual loop contacts to provide redundant circuit paths and low inductance to the termination assembly. A coupling element may be utilized in the slot to achieve a desired level of coupling between the termination contacts.

Abstract: The present invention relates to apparatus and methods that proactively ensure alignment (parallelism) of the connectors on the circuit board during the solder assembly of the connectors to the circuit board. The apparatus and methods include an alignment fixture that has been specifically designed to ensure parallelism of straddle-mounted connectors during the solder reflow assembly process. The fixture has connector slots and a circuit board slot. The slots help to detect whether the connectors meet the X- and Y-axis alignment requirements after the insertion process (after the connectors have been placed onto the circuit board). That is, if the X- and Y-axis alignment specifications are met, the circuit board with its attached connectors can be completely fitted into the slots of the alignment fixture.

Abstract: An electrical connector (1) includes an insulative member (10) defining two rows of slanted cavities (30) along a longitudinal direction thereof, two rows of conductive contacts (12) obliquely received in corresponding slanted cavities and two grounding plates (32) with over-molded insulative inserts (34) attached to the insulative member. Each grounding plate electrically contacts some selected conductive contacts via ribs (39) thereof, which are therefore grounding contacts, and is isolated from the other conductive contacts, which are therefore signal contacts. Each grounding plate has a number of enlarged tails (38) for elastically engaging with corresponding plated holes (54) in a mother board (46) that the electrical connector is adapted to be mounted on. The conductive contacts slide along the mother board upon insertion of a daughter board (52) to the electrical connector.

Abstract: A connector capable of handling high current, for example, from a voltage regulator module. The connector includes a housing and a plurality of contacts in the housing. The plurality of contacts include power contacts, ground contacts, and signal contacts. The power and ground contacts are arranged in an alternating pattern in the housing. The signal contacts are located at each end of the alternating pattern of power contacts and ground contacts and may be significantly smaller than the power contacts and ground contacts. Each power contact and ground contact include two wide blade-like mating surfaces facing each other but offset and two or more solder tails allowing electrical connection to an electronic circuit. The two mating surfaces and the solder tails comprise a single piece.

Abstract: An electrical connector (1) includes an elongate insulative housing (12) defining a number of cavities (22) in a longitudinal direction (X) thereof, a number of groups of contacts (12) respectively received in corresponding individual cavities of the housing. The groups of contacts are arranged in two rows in a traverse direction (Y) of the housing. Each group of contacts includes at least two conductive contacts gathered side by side in the corresponding individual cavity in the X direction. The contacts each are such stamped and assembled to the housing that its dimension (T) in the X direction is much less than its dimension (W) in the Y direction, which reduces its occupied room in the housing in the X direction without reducing its strength.

Abstract: A card edge connector includes an elongated longitudinally extending outer frame defining a reception region adapted to receive a plurality of chiclet modules including contact members and lying in parallel laterally extending planes which, as an assembly, are positioned to connectively engage with mating contacts. Each chiclet module includes an insulative housing having first and second spaced generally parallel elongated passages therein and a card receiving recess for reception therein between the first and second passages of a planar card having opposed surfaces with conductive contact members thereon. First and second contacts are received, respectively, in the first and second passages. Each has a first contact surface positioned, respectively, for engagement with first and second of the mating contacts. The card receiving recesses of the chiclet modules as a group define a longitudinally extending card receiving slot.

Abstract: A card edge connector includes an insulative housing defining a central slot along a longitudinal direction thereof. Two rows of passageways are disposed by two sides of the central slot, respectively. An elongated slit is formed in an outer side of each corresponding row of the passageways. A contact strip is retained in the corresponding slit and laterally communicating with some corresponding designated passageways. A plurality of discrete first contacts are retainably received within such some designated passageways, respectively, and a plurality of second contacts are respectively retainably disposed in the remaining passageways.

Abstract: A card edge connector includes an insulative housing defining a central slot along a longitudinal direction thereof. Two rows of passageways are disposed by two sides of the central slot, respectively. An elongated slit is formed in an outer side of each corresponding row of the passageways. A contact strip includes a elongated strip retention portion retained in the corresponding slit, a plurality of first contacts extending, from an upper portion of the retention portion, laterally into the some corresponding designated passageways. A plurality of discrete second contacts are respectively retainably disposed in the remaining passageways.

Abstract: An electrical card edge connector (1) includes an insulative housing (2) and a number of electrical contacts (3). The insulative housing has a pair of opposite longitudinal sides (20), a pair of opposite lateral sides (22) connecting with the longitudinal sides and a central slot (24) confined by the longitudinal and the lateral sides. Each lateral side is formed with a pair of arms (220) and a slit (222) between the arms to secure an inserted daughter board to the electrical card edge connector. The electrical contacts are received in the longitudinal sides and are exposed to the central slot to electrically connect with the inserted daughter board.

Abstract: A modular mounting system which allows a circuit board to be removed, inserted or replaced through the front of the mounting frame without deactivating power to the equipment, and in the preferred embodiment without detaching any external cables. Connections for external equipment are disposed along the rear edge of the circuit board, and a row of contacts for the internal connections is provided along the bottom edge of the circuit board. The system of the invention provides a releasable connector which retracts the connector pins into a housing when a circuit board is inserted or removed, thus eliminating the possibility of a contact on the circuit board touching a live connector pin. In the preferred embodiment the external connections are made through adaptors that plug into external cable connectors provided on a connector plate detachably affixed to the rear of the mounting frame.

Abstract: A connector assembly for interconnection to conductors of a flat circuit, wherein the conductors are in a pattern of varying widths. A dielectric housing has a receptacle with an opening communicating the receptacle to the exterior of the housing. A plurality of terminal blocks of conductive material are positionable in the receptacle. The terminal blocks have varying sizes with corresponding varying planar surfaces exposed at the opening in the housing for engaging the conductors of the flat circuit. The blocks are arranged in the receptacle so that they present a pattern of varying sized planar surfaces matching the pattern of varying width conductors.

Abstract: An electrical system includes a first substrate (31) having a first contact portion (32, 33) thereon and a second substrates (35) having a second contact portion (36, 37) thereon. An electrical connector is arranged between the first and second substrates for establishing electrical connection therebetween. The electrical connector includes a number of wafers (10) stacked together and each wafer includes at least a passageway (13, 14) defined therein having ends facing the first and second substrates. Each passageway has a terminal (21, 22) moveably supported therein and has end contacting portions (21b, 21c; 22b, 22c) electrically contacting with first and second contact portions of said first and second substrates. The terminal includes an arm (21d, 22d) abutting against an inner side of the passageway.

Abstract: The present invention allows easy inspection of the conditions of soldering of a plurality of first and second contacts in a card edge connector assembly in which daughter boards are stacked in a plurality of tiers. Each of the first contacts (12) has a main body (12a), bent contact parts (12c) which extend into the accommodating recesses (2 and 4) via contact part passage grooves (39 and 41), and a tine (12d) on the lower end of the main body (12a). The plurality of second contacts (13) are constructed from contact members (14 and 15), and a conductive member (17) which electrically connect the contact members (14 and 15) on the rear part of the housing (6). Tines (15g) are formed on the lower ends of the contact members (15). The first contacts (12) are attached from the rear part of the housing (6), and the contact members (14 and 15) of the second contacts (13) are attached from the front part of the housing (6).

Abstract: A protective assembly for electronic components. The protective assembly has a base and a first printed circuit board secured to the base. An electronic component is disposed on the printed circuit board and protected by a rigid member that is also secured to the base. The protective assembly is designed to be mechanically and electrically coupleable to a computer-based system.

Abstract: A backplane connector (2) has a housing (4), an inserted body (6) and a plurality of contacts (10) inside the housing. The inserted body can be swiveled toward the contacts and away from each other. In a mounting position, in which the inserted body and the plurality of signal contacts are swiveled away from each other, insertion of a PCB into the housing is permitted. In a connecting position, the inserted body and the plurality of signal contacts are swiveled toward each other. The inserted body is formed of a plurality of terminal modules which are arranged in lengthwise series alongside one another.

Abstract: A first slot for containing a first card and a second slot for containing the second card are disposed in upper and lower sides, the first contact terminals are disposed so that respective soldered portions 40a of a plurality of first contact terminals for the first card are positioned at one side of front surface and rear surface sides of a connector housing, and said second contact terminals are disposed in opposition to the first contact terminals so that respective soldered portions 50a of a plurality of second contact terminals for the second card are positioned at the other side of the front surface and rear surface sides of the connector housing.

Abstract: A card edge connector includes an elongated longitudinally extending outer frame defining a reception region adapted to receive a plurality of chiclet modules including contact members and lying in parallel laterally extending planes which, as an assembly, are positioned to connectively engage with mating contacts. Each chiclet module includes an insulative housing having first and second spaced generally parallel elongated passages therein and a card receiving recess for reception therein between the first and second passages of a planar card having opposed surfaces with conductive contact members thereon. First and second contacts are received, respectively, in the first and second passages. Each has a first contact surface positioned, respectively, for engagement with first and second of the mating contacts. The card receiving recesses of the chiclet modules as a group define a longitudinally extending card receiving slot.

Abstract: The module-type connector according to the present invention defines the connectable connectors with a rigid supporting plate which extends along the connecting direction in order to make it easy to properly fit a male connector to a female connector. In the module-type connector, the contacting portions of the contacts that are shifted in the separation direction of the corresponding terminal with which the contacting portions contact are almost uniformly distributed. Further, the male connector that receives a preliminary load from different levels in the direction so that opposing elastic contacting portions are widened by engaging between the first end portion of each contact within a housing and the different levels of the housing, has at least a protruding portion that protrudes from the contacting surface of the plurality of contacts toward the contacting surface thereof and that is provided between contacts.

Abstract: A PCMCIA card connector (1) includes a dielectric housing (20) and a number of first and second terminals (31, 32) received in the dielectric housing. The dielectric housing comprises a pair of parallel arms (200) and a main body (201) between the arms. The main body comprises a front mating face (25) and a bottom face (26). Each of the terminals defines a horizontal contact portion (31a, 32a), a solder portion (31b, 32b) and a vertical mounting portion (31c, 32c). The solder portion extends downwardly from the contact portion for soldering to a printed circuit board. The mounting portion of the first terminal extends downwardly from the contact portion and the mounting portion of the second terminal extends upwardly from the contact portion. The mounting portions are received in mounting holes (22, 24) of the dielectric housing from a top and a bottom sides of the dielectric housing.

Abstract: To prevent deformation of the leg of the second electric contact, which has a contacting part that is fixed to the insulating housing at a position lower than that of the first electric contact and the leg that extends from the contacting part, comes out of the insulating housing at the rear thereof and extends forwards along the bottom of the insulating housing.

Abstract: Each the contact terminal includes a plurality of contact units stacked with each other, wherein contact point sections of the respective contact units are distributed to disperse in lengthwise direction of the contact terminal within the corresponding contact pad. The distal end of the innermost contact unit in the plurality of stacked contact units extends to a position at which it is not entangled with the distal end of the adjacent contact unit.

Abstract: An electrical system includes a first substrate having a first contact portion thereon and a second substrate having a second contact portion thereon. An electrical connector is arranged between the first and second substrates for establishing electrical connection therebetween. The electrical connector includes a plurality of wafer stacked together and each wafer includes at least a passageway defined therein having ends facing the first and second substrates. Each passageway has a terminal moveably supported therein and has end contacting portions electrically contacting with first and second contact portions of said first and second substrates. The terminal includes an arm abutting against an inner side of the passageway.

Abstract: The present invention is a connection material which enables a flexible circuit board to be connected to a bare IC chip without causing a shoulder touch effect. The connection material contains an insulating adhesive and a flaky or fibrous insulating filler dispersed therein is used for connecting a film-like flexible circuit board and a bare IC chip. The aspect ratio of the flaky or fibrous insulating filler is no less than 20.

Abstract: A socket for receiving an electrical component, such as a semiconductor component, having an electrical terminal. The socket has a contact, to which the electric terminal is connected when the electrical component is fully inserted into the socket, and a driving mechanism that controls measurement of the contact toward the electric terminal when the semiconductor component is inserted into the socket. The driving mechanism has a movable separation member for keeping the contact away from the insertion position of the semiconductor component when the semiconductor component is not inserted in the socket. The socket also has a spring which is compressed as the semiconductor component is inserted into the socket. The spring pushes back the movable separation member toward the semiconductor component when the semiconductor component is removed.

Abstract: An electrical connector includes a housing having a slot formed therein. The electrical connector further includes a plurality of conductive contact bands disposed within the slot. Each of the contact bands has a surface with a roughness defined by a plurality of microscopic irregularities. Each of the contact bands additionally has a plurality of projections, each of which projects above the surface of the contact band by a distance equal to a value between about 0.1% and 99% of a width of the contact band. The projections of each contact band electrically engage, at a plurality of different locations, with a conductive member insertable into the slot.

Abstract: An edge card connector is provided for use with a circuit card having an edge and a plurality of contact pads near the edge. The connector includes a housing having an elongated slot for receiving the edge of the circuit card therein, along with terminal cavities adjacent to the slot. A plurality of terminals are inserted into the terminal cavities. At least some of the terminals each include a contact section extending into the slot for engaging a contact pad on the circuit card, along with an enlarged body section. A thin flexible contact arm extends between the body section and the contact section. A finger portion extends alongside the thin flexible contact arm to increase the capacitance of the terminal and, thereby, reduce the impedance of the circuit through the terminal.

Abstract: An interconnect structure for connecting electrical components that includes a plurality of micromachined silicon cantilever beams. The cantilever beams are formed having a shape dictated by predetermined scaling rules that determine the mechanical and electrical properties of the cantilever beam. The cantilever beams are arranged in two generally parallel rows and are mounted to a dielectric material to form a recess between the rows. An electrical component may be inserted into the recess to create a contact force against the cantilever beams to place the component and the interconnect into electrical communication. Also, an electrical connector system may be constructed having a first electrical connector comprising a contact formed of metalized silicon and a base supporting the contact, and a second electrical connector mateable with the first electrical connector that comprises a contact formed of metalized silicon and a base supporting the contact.

Abstract: A low inductance power connector for reducing inductance in an electrical conductor is provided. An interface connector connects circuit boards together while reducing inductance and increasing current carrying capacity. The connector for connecting circuit boards comprises a first contact having a body, a first mating portion and a second mating portion, and a second contact having a body, a third mating portion and a fourth mating portion. The first and second mating portions are substantially parallel and disposed on opposite sides of the body of the first contact, and the third and fourth mating portions are substantially parallel and disposed on opposite sides of the body of the second contact.

Abstract: A connector for high speed applications includes both signal and reference or power terminals arranged on opposite sides of a circuit-card receiving slot of the connector. The reference or power terminals have a pair of spring arms that extend up from a body portion and are spaced apart from each other. Insertion of a circuit card into the card slot deflects one of the two spring arm portions secondary into shorting contact with the other spring arm portion. The circuit paths are thus defined in the terminal, which increases the performance of the connector. The shorting contact is obtained by the two spring arm portions engaging each other along opposing sides to reduce the force needed to effect shorting contact.

Abstract: The present invention allows easy mounting of the lower daughter board or card in a card edge connector assembly in which two cards are stacked. The sub-assembly (19) is attached via an upper or second pair of latch members (8) to the supporting shafts (22) that protrude from both ends of the housing (6) which is long in the lateral direction. Projecting or supporting parts (82) are caused to protrude outward from both ends of the rear part of the housing (6), so that the sub-assembly (19) is maintained in an open state. The lower or first daughter board (96) is inserted at an inclination into the lower accommodating recess (4) as shown in FIG. 6(A), and is pressed downward as indicated by the arrow (C), so that the first daughter board (96) is attached to the lower or first pair of latch members (10).