Abstract:
A semiconductor device comprises; a semiconductor chip including a first and second groups of pads; and a wiring substrate including a first and second groups of leads, wherein the first group pads are arranged in line with a first line extending along one side of the semiconductor chip; the second group pads are arranged in line with a second line located the further inside of the semiconductor chip more than the location of first line and extending along one side of the semiconductor chip; and each of a first and second groups of leads includes a joint part, a bending part extended to the joint part and an end part extended to the bending part; wherein the semiconductor chip is mounted on the substrate such that the first group pads oppose the joint parts of the first group leads and the second group pads oppose the joint parts of the second group leads; the joint parts of the first group leads extend along any of a plural of lines passing through a first point; the joint parts of the second group leads extend along any of a plural of lines passing through a second point; and the first and second group leads are extracted from the side of the semiconductor chip.
Abstract:
An electronic device is provided on which semiconductor packages can be mounted efficiently. The electronic device includes a board that can receive a plurality of first semiconductor packages each carrying a processor device and a plurality of second semiconductor packages each carrying a memory device. Mount regions where the packages are to be mounted and non-mount regions are alternately arranged in rows and columns on the board. This ensures approximately equal wiring distances between the packages, allowing processor devices to access associated memory devices at the same time.
Abstract:
A circuit board module has an IC device, discrete components, and a circuit board structure in electrical communication with the IC device and the discrete component. The circuit board structure includes non-conductive material defining a top surface of the circuit board structure and a bottom surface of the circuit board structure, vias supported by the non-conductive material, top pads electrically coupled to the vias, and bottom pads electrically coupled to the vias. The top pads are disposed along the top surface of the circuit board structure and are soldered to IC device. The bottom pads are disposed along the bottom surface of the circuit board structure and are configured to solder to the discrete components. The bottom pads include a group of angled bottom pads which is soldered to a group of the discrete components substantially at 45 degree angles relative to sides of the IC device.
Abstract:
A component (5) which can be screwed into a circuit module (1) with a circuit board (3) has ring-segment shaped contacts (9, 10, 11), which allow contacting between the circuit board (3) and component (5) irrespective of the rotational position of the component (5).
Abstract:
A capacitor mounting structure has four capacitors close-arranged so that the outline of the arrangement is almost rectangular. The capacitors are arranged so that an angle formed by the current vectors of each pair of adjacent capacitors is 90 degrees and that one end face in the length direction of each capacitor is directed in parallel to an inner side face of another adjacent capacitor.
Abstract:
An instrument cluster for communicating a vehicle's operating status to a vehicle occupant is disclosed. The instrument cluster includes a housing for supporting the instrument cluster. The housing is mountable to a vehicle instrument panel. A circuit board is secured to the housing. A motor having a motor shaft is rotatably coupled to the motor and the motor is secured to the circuit board. A gauge pointer is mounted on the motor shaft and rotatable therewith for indicating the vehicle's operating status. At least one diode is provided for illuminating the gauge pointer and at least one diode “footprint” is disposed on the circuit board proximate the motor shaft for electrically interconnecting the at least one diode to the circuit board. The at least one diode “footprint” has a cathode solder pad and an anode solder pad. The anode solder pad is substantially rectangular and the cathode solder pad is substantially L-shaped.
Abstract:
To improve the connection reliability in mounting semiconductor chips Solder balls 6 are disposed on a back surface of an interposer substrate 1, in a manner to avoid diagonal lines 7 of the interposer substrate 1, and a semiconductor chip 3 is mounted on a surface of the interposer substrate 1.
Abstract:
A method and apparatus is provided that pertains to resisting crack initiation and propagation in electrical interconnections between components and substrates in ball grid array microelectronic packages. A hybrid of dielectric defined and non-dielectric defined electrical interconnects reduces the potential for electrical interconnection failure without having to control the dielectric defined interconnect ratio of substrates. In addition selective orientation of the dielectric defined edge portion of the electrical interconnect away from the point where cracks initiate resists crack propagation and component failure.
Abstract:
An integrated circuit die and/or package. An apparatus is described having a substrate with a central region and an outer region. A first plurality of electrical connections is spaced apart by a first distance on the outer region of the substrate. A second plurality of electrical connections is spaced apart by a second distance, smaller than the first distance, on the central region of the substrate.
Abstract:
Surface mounted LEDs are arrayed in special patterns to provide a relatively high resolution dot-matrix visual display and/or multi-segment character displays. Especially abbreviated solder bonding pads are utilized to obtain a higher density packing of the surface mounted arrays in at least some embodiments. Special anti-glare coatings and structures are employed to reduce ambient light reflections for aircraft instrument applications. Multi-colored display outputs are also provided.