Abstract:
An orthogonal backplane connector systems having midplane footprints that provide for continuity of impedance and signal integrity through the midplane and allow for the same connector to be coupled to either side of the midplane. This design creates an orthogonal interconnect without taking up unnecessary PCB real estate. The midplane circuit board may include a first differential signal pair of electrically conductive vias disposed in a first direction, and a second differential signal pair of electrically conductive vias disposed in a second direction that is generally orthogonal to the first direction.
Abstract:
A circuit device for interconnecting first and second multilayer circuit boards is described herein. The first multilayer circuit board may include a first plurality of electrically conductive vias of varying depths and the second multilayer circuit board may include a second plurality of electrically conductive vias. The circuit device comprises a first plurality of pins located on a first side of the circuit device corresponding to the first plurality of electrically conductive vias of the first multilayer circuit board, each pin having a length compatible with a depth of a respective one of the first plurality of electrically conductive vias of the first multilayer circuit board. The circuit device further comprises a second plurality of pins located on a second side of the circuit device corresponding to the second plurality of electrically conductive vias of the second multilayer circuit board.
Abstract:
Three printed boards are stored in a case, and a relay connector (10) for connecting the three printed boards is mounted on the second printed board (50) at the middle position. The relay connector (10) is provided with a first terminal storing part (14), which is long in a vertical direction, and a short second terminal storing part (15). The relay connector connects a terminal pin (41) of the first printed board (40) at an upper position with a terminal pin (61) of the third printed board (60) at a lower position, via a long first relay terminal (20) stored in the first terminal storing part (14), while connecting a terminal pin (42) of the first printed board and/or the terminal pin of the third printed board with a conductor (53) of the second printed board, via a short second relay terminal (21) stored in the second terminal storing part (15).
Abstract:
The connector comprises a housing (7) having a solderable portion, a reinforcing metal member (5) movably attached to the housing such that it is vertically movable when it is soldered to the board (12). The reinforcing metal member and the solderable portion are provided so as to form a gap (14) between them, which permits soldering by capillary effects.
Abstract:
A semiconductor device comprises a first and a second semiconductor chip that are separate from each other, a first resin package body for accomodating said first semiconductor chip and a second resin package body for accomodating said second semiconductor chip. Each of the resin package bodies comprises groups of interconnection leads at the lower edge thereof and a heat dissipation lead connecting the first resin package body and the second resin package body with each other. The heat sink part is projecting outwardly from the top edge of the first and second resin package body so as to bridge and connect the first and second resin package bodies. The semiconductor device is held upright on a substrate and is suitable for the mounting on the substrate by the surface mounting technology. Simultaneously, the device achieves an efficient cooling by the heat sink part that connects the first and second resin package bodies.
Abstract:
An integrated circuit assembly (30) is disclosed herein. The assembly includes a dielectric substrate (32) defining a predetermined array of electrically conductive traces (40) and an array of solder balls (42) electrically connected to the traces (40). An integrated circuit chip (44) having a series of input/output pads is supported on the substrate (36). In one embodiment, a plurality of leadframe leads (48) are supported by the substrate (36) in electrical isolation from and over the conductive traces (40). First and second series of bonding wires (56, 58) electrically connect certain ones of the input/output pads on the IC chip (44) to the leadframe leads (48) and conductive traces (40). In other embodiments, one or more electrically isolated conductive layers (142, 144) are supported by the dielectric substrate (122) over the traces (128) and leadframe leads (130). The integrated circuit assembly (120), in accordance with any of these embodiments, provides a very high density electrical interconnection arrangement for the IC chip (132) while retaining a small package footprint.
Abstract:
Two flat packages (110, 111) are arranged to achieve a mirrored footprint by employing guides (100), which are positioned within a mounting aperture a printed circuit board. The flat packages include leads (120,121) which extend from the edge of the flat package. A semiconductor chip is encapsulated by the flat packages.
Abstract:
An electrical connector (16) has first terminals (50) which are surface mounted to respective sides of a substrate (12) and second terminals (70) which extend through an edge surface of the substrate (12) to make electrical connection to an opening provided in the substrate. As the connector (16) is mated to the edge of the substrate (12), the connector (16) occupies a minimal space on the substrate (12).