Abstract: A retention member (40) for a card edge connector (4) is provided for securing a printed circuit card (6) in the connector. The retention member is formed as a spring clip having free ends (42) secured to releasably attached to ends of the electrical connector. Tabs (44) are received in notches (32) to further secure the assembly. Slots (48) are formed in the spring clip to receive corners of the printed circuit card. The spring clip may have bowed portions to further strengthen the retention of the printed circuit card. The spring clip is released from the connector by inserting a tool into lateral tool slots (13).

Abstract: An electrical connector for coaxial cable having at least one contact with a contact region for connection to a mating contact and a connection region for connection to a coaxial cable, wherein the contact includes a peripheral groove; a contact-securing sleeve can be pushed onto the contact from an end face that has at least one latching arm which latches in the groove and at least one further latching element; and a casing with at least one receiving chamber for receiving the contact with the contact-securing sleeve, wherein the latching element of the contact-securing sleeve latches with a mating latching element of the casing and the receiving chamber holds the latching arm in the latched position.

Abstract: The invention is directed to a dielectric member interposed between two electrical components which have different coefficients of thermal expansion (CTEs). The dielectric member has conductive traces for electrically connecting the electrical components. The traces may be joined by solder balls to a printed circuit board. The dielectric member may include reservoirs for locating the solder balls and receiving solder after reflow of the solder balls. Adhesive layers may be used for bonding the traces to the dielectric member. The dielectric member is made of a material having a selected CTE value which minimizes the CTE mismatch at the electrical interface and effectuates absorption of the thermal expansion and contraction of the system. Stresses induced by thermal expansion and contraction at the electrical interface are thereby reduced, preventing problems such as fractured solder joints.

Abstract: The present invention provides a compact latch-equipped connector, which allows accurate accommodation and holding of circuit boards, and which can insure stable holding of circuit boards therein. The latch-equipped connector has metal latch members (20) in positions at both ends of a long, slender housing (11). The latch members (20) have board-engaging sections (31) for engaging with recesses of the circuit board as it is pivoted into a connected position in order to prevent the circuit board from slipping out, and board-holding sections (32) for holding the circuit board inside the housing. The board-holding sections (32) have inclined portions (36) effecting smooth accommodation of the circuit board in the connector. Board-positioning sections (26) are disposed in positions removed from the board-engaging sections (31), and projections (37) are disposed on upper ends of the board-engaging sections (31).

Abstract: A card connector provides for reliable grounding and, at the same time, makes it possible to simplify the mounting, maintenance and servicing operations. Card connector (10) comprises a main body (11) including a dielectric housing (13) accommodating multiple electrical contacts (12) and a grounding member (14) that is fabricated separately from the main body (11) and is secured thereto. The grounding member (14) has tabs (17) that electrically connect with an outer surface of a card inserted in the card connector (10) and connecting sections (16), the purpose of which is to electrically connect with electrical circuitry of a circuit board. The grounding member (14) can be latchably attached to the main body (11) that is mounted to the circuit board (100), and if necessary, it can be removed, thus providing access to connecting sections (12a) of electrical contacts (12).

Abstract: A Balun assembly has a signal conductor (2) on the balanced side of a Balun, the signal conductor (2) being joined to a microstrip RF launch area 7 on a circuit board 6, the signal conductor (2) having a bend of axial orientation for lower cost, reliability, avoiding contact with a ground circuit path (9), being more suited for higher volume manufacturing, that distributes thermal expansion and contraction thereof substantially throughout to lessen stress at a junction of the signal conductor (2) and the RF launch area (7), and the signal conductor (2) being of minimum length and of smooth and even curvature to lessen impedance mismatch at the junction.

Abstract: An edge emitting laser comprising a substrate with or without a buffer layer having a central mesa disposed thereon, said central mesa having a bottom surface, a top surface and side surfaces and said mesa having an active layer disposed on said substrate with or without a buffer layer, a cladding layer disposed on said active layer, and a quaternary layer disposed on said cladding layer; first and second blocking layers disposed along said sides of said mesa; and at least one alignment fiducial disposed along an outer region of the laser, said alignment fiducial comprising at least a first surface and a second surface, said first surface being a certain distance from said active layer in the y-direction and said second surface being a certain distance from said active layer in the x-direction, said first surface comprising at least a portion of the top of said quaternary layer, said second surface comprising at least a portion of a side of at least one of said quaternary, cladding, or active layers.

Abstract: According to the present invention, an optical waveguide is provided on a silica or silicon substrate using MPACVD and ICP etching processes. Optical fiber is coupled to the waveguide by positioning the fiber in a groove formed in the waveguide and compressing a top lid on the fiber. The top lid is secured to the waveguide and fiber by an epoxy or a solder. In a solder based embodiment, the cladding of the fiber may have a metallization evaporated thereon.

Abstract: A contact to electrically connect at least one pin of a pin grid array to a printed circuit board is described. The contact comprises a receiving portion having a pair of contact arms, with each contact arm having a curved portion and a straight portion. The contact arms are positioned so that the curved portions form a curved receiving area while the straight portions are substantially parallel to each other to form a contact area. The contact also includes a tail portion having a solder ball receiving portion. The contact further includes a center portion connecting the pin receiving portion to the tail portion.

Abstract: This invention is directed to a cleaning insert and cleaning assembly to remove debris or contaminants from optical fiber connectors including connectors attached to system backplanes. The cleaning insert is treated with a cleaning agent such as an adhesive. The cleaning insert is secured in a cleaning assembly that is coupled to the connector to be cleaned. The treated cleaning insert contacts the ferrule of the optical fiber connector to remove the contaminants.

Abstract: A mounting system for electrical modules (10) having a housing (12) with a rail mounting face (14) including a rail receiving recess (17), includes a pair of spring loaded rail engaging clamps (80) disposed on the mounting face (14) and movable between a first or latched position and a second or open position. Each clamp (80) includes a body portion (85) having a spring receiving cavity (85a), a base (82) extending outwardly from a lower edge of the body portion in one direction and a rail engaging arm (88) extending outwardly from an upper edge of the body portion and in a direction opposite to the base. The body portion (85) includes a wall (86) extending at an angle from the base to the arm and defining a rail latching surface (86a). A partially compressed spring disposed (90) in the cavity (85a) exerts a selected force to hold the clamps (80) in the latched position.

Abstract: An electrical connector for terminating flat cable of the type having a plurality of signal and ground conductors in parallel alignment comprises a housing which holds a plurality of signal contacts and a ground bus. Each of the signal contacts has a signal conductor termination slot configured for insulation displacement termination of a respective said signal conductor. The ground bus has a plurality of ground conductor termination slots each configured for insulation displacement termination of a respective said ground conductor, and at least one bypass slot configured to permit at least one of said signal conductors to pass through said ground bus without termination thereto. The signal conductor termination slots, the ground conductor termination slots and the at least one bypass slot are arranged such that the plurality of signal and ground conductors reside in a common plane in the connector after termination thereto.

Abstract: A printed circuit board is disclosed which has conductive pads located near an edge of a board main body on its upper and lower surfaces to reduce the width in the direction of contact sliding and to provide for a smoother connection between electrical contacts of an electrical connector and the conductive pads despite a powdered substance produced as a result of friction between the conductive pads and the electrical contacts. The printed circuit board (1) has conductive pads (14a, 14b) on upper and lower surfaces of the board main body (2) near the edge (3) of the main body (2). Electrical contacts (20) slide over the conductive pads (14a, 14b) from the edge (3) of the board main body (2). The conductive pads (14a, 14b) are connected together by via holes (15a) that are located in the paths of the contacts (20).

Abstract: The invention relates to an arrangement with two half-plugs for securing in a wall, in which the first half-plug (1) has two elastic arms (2,3) on opposite sides. It also has a stop (5) as far as which the half-plugs may be inserted into an aperture in the wall (6). Each of the two elastic arms (2,3) has an engagement projection (7,8) fitted in such a way that the projections engage on the opposite side of the wall (6) to the stop (5) if the first half-plug (1) is inserted into the wall as far as the stop (5). The second half-plug (9) also has two projecting arms (10,11) which are fitted in such a way that, when the half-plugs (9,1) are fitted together, the arms (10,11) engage in the space between the elastic arms (2,3) and the plug housing and secure the first plug by fixing the spring arms in the wall.

Abstract: A conductive supporting plate (150) is fastened to the engaging end part (130) of a flexible circuit board (190) so that the conductive supporting plate (150) is connected to the ground surface of the flexible circuit board (190). The conductive supporting plate is installed on the engaging end part 130 of the flexible circuit board (190). The flexible circuit board (190) is accommodated together with the conductive supporting plate (150) in a board-mounted connector (20) on a mating side, and is fastened to the board-mounted connector (20) by screw means (105). The conductive supporting plate (150) is pressed against grounding means (70) installed on the board-mounted connector (20) by the screw means (105).

Abstract: 37 An electrical connector is provided in which the contacts do not slip out of the housing when the mating contacts of the mating connector contact both opposite major surfaces of the contact parts of the contacts, and which is devised so that even in cases where dirt or other members, e.g., housing bodies or electrical parts such as resistors, etc., approach the rear edges of the contacts, there is no short-circuiting of adjacent contacts by such dirt, etc. The electrical connector 1 is equipped with contacts 20 which have contact parts 23 that contact the mating contacts 42 of a mating connector 40 engaged parallel to the circuit board 30 with both opposite major surfaces of a stamped metal plate. The press-fitting fastening parts 22 of the contacts 20 are fastened to the housing 10 by press-fitting from the bottom side of the housing 10 in a direction perpendicular to the engagement direction of the mating connector 40.

Abstract: The invention provides an optical connector for coupling a plurality of optical fibers in an array configuration. The optical connector housing is designed to accommodate a plurality of array ferrules. Each array ferrule holds multiple fiber ends each being precisely positioned with respect to alignment features of the ferrule. The plurality of ferrules may be either independently biased or dependently biased.

Abstract: Plug connector (20) has a latch arm (22) intended for engagement with a mating cap connector (70). The latch arm (22) has a latching lug (25) and a cam lug (27) having a tapered surface (26). When the plug connector (20) is connected to the cap connector (70), the cam lug (27) is accommodated in a groove (77) provided in an individual cavity (81) of a cavity opening (72) of the cap connector (70). The latch arm (22) can be bent by inserting a tool in the groove (77) from its end (77a) and pressing on the cam lug (27), thereby releasing the engagement between the latching lug (25) and the cap connector (70) so that the plug connector can be disconnected from the cap connector.

Abstract: The present invention provides a relatively compact electrical connector which is equipped with a resilient latching mechanism (21) on one side of a housing (20), and which accommodates a plurality of different types of electrical contacts inside the housing. The housing (20) of the electrical connector (10) has relatively-small first cavities (30a) which accommodate electrical contacts (60) that have contact lances (61), and relatively-large second cavities (30b) which have housing lances (57) used to latch electrical contacts (70). Mold-release apertures (54) used to form the housing lances (57) are located inside rigid walls (81) that protect the resilient latching arm (21) from both sides and mold-release apertures (44) used to form latching shoulders (43) are located in another side of the housing opposite the one side of the housing.

Abstract: A compact ZIF type socket is provided having the durability to withstand numerous movements of the slider. The ZIF type IC socket 1 consists of a base housing assembly 10 that accommodates numerous contacts, and a cover housing assembly 40 that can slide over the base housing assembly 10. The cover housing assembly 40 is caused to move in relative terms by inserting a plate-form tool 99 into tool insertion holes 65 and 85 respectively formed in a metal supporting plate 60 on the side of the base housing assembly 10 and a metal supporting plate 80 on the side of the cover housing assembly 40, and rotating this tool 99. The action points of the tool insertion holes 65 and 85 contacted by the tool 99 are formed as circular-arc-form projections 75, 76, 95 and 96. Accordingly, the force of the tool 99 can be transmitted to the base housing assembly 10 and cover housing assembly 40 without causing indentation or damage, etc.