Abstract:
Aiming at adjusting the height of bump electrodes connected to lands on a substrate, a semiconductor device 100 has a first interconnect substrate 103 and a second interconnect substrate 101. On one surface of these substrates, first lands 111 and second lands 113 are provided. The plane geometry of the second lands 113 is a polygon characterized by the inscribed circle thereof having an area smaller than the area of the inscribed circle of the first land.
Abstract:
An energy conditioner structure comprising a first electrode (120), a second electrode (80), and a shield structure (70, 110, 150) provides improved energy conditioning in electrical circuits. The structures may exist as discrete components or part of an integrated circuit. The shield structure in the energy conditioner structure does not electrically connect to any circuit element.
Abstract:
An electronic device includes an electronic component (40), a first printed circuit board (PCB) (100) and a second printed circuit board (200). The electronic component includes a first pin (A1) and a second pin (A2). The first PCB and a second PCB, respectively including first conductor trace lines (102) and second conductor trace lines (108) for electrically connecting the first pin and the second pin. The first PCB is disposed above the second PCB, and is parallel with the second PCB. The first PCB is electrically connected to the second PCB via at least one of the first conductor trace lines and the second conductor trace lines. A surface area of the first PCB is smaller than that of the second PCB.
Abstract:
A printed circuit board (PCB) for a package substrate of a multi-package module (MPM). The PCB comprises a substrate and a heat sink thereon. The heat sink comprises a first portion under the package substrate of the MPM. The heat sink further comprises a second portion adjacent to the first portion, comprising at least one fin.
Abstract:
The invention provides a method and device for building one or more passive components into a chip scale package. The method includes the steps of selecting a passive component having a terminal pitch that is a multiple of the package ball pitch of a chip scale package and mounting the selected passive component terminals to ball sites of the package. A preferred embodiment of the invention uses a single metal layer polyamide tape as the substrate of the package. Additional preferred embodiments of the invention are disclosed in which the terminal pitch multiple of the package ball pitch is one or two. Devices corresponding to the disclosed methods are also disclosed.
Abstract:
In a manufacturing method of a hybrid integrated circuit device 10 according to the present invention, a first dummy pattern D1 is provided on a first wiring layer 18A. Furthermore, a second dummy pattern D2 is provided on a second wiring layer 18B. The first dummy pattern D1 and the second dummy pattern D2 are connected through a connection part 25 which penetrates an insulation layer 17. Hence, heat dissipation through a dummy pattern can be actively performed. In addition, even in the cases where a multi-layered wiring is formed, it is possible to provide a circuit device which can secure a heat dissipation property.
Abstract:
A memory module includes a board, a memory device attached to the board, and a heat dissipation means arranged between the memory device and the board.
Abstract:
A multi-layer printed circuit board (PCB) routes signal traces on internal signal layer(s) and includes power planes on the two outermost layers. The outer layers are maintained at the same non-ground voltage level, and are electrically connected by a series of vias that circumscribe signal traces on the internal layer(s). With a preferred maximum spacing of one-tenth the wavelength of electromagnetic energy generated by the signal traces, the vias, together with the outer power planes, contain electromagnetic energy within the PCB. One or more of the outer planes may include a second power plane area maintained at a different voltage. The two power plane areas are connected by decoupling capacitors, located proximate underlying signal traces that traverse the two power plane areas.
Abstract:
A semiconductor package provided with an interconnection layer including an interconnection pattern and pad formed on an insulating substrate or insulating layer, a protective layer covering the interconnection layer except at the portion of the pad and the insulating substrate or insulating layer, and an external connection terminal bonded with the pad exposed from the protective layer, the pad to which the external connection terminal is bonded being comprised of a plurality of pad segments, sufficient space being opened for passing an interconnection between pad segments, and the pad segments being comprised of at least one pad segment connected to an interconnection and other pad segments not connected to interconnections.
Abstract:
The present invention relates to a heating method and a printed circuit board comprising a heating element which generates heat required to heat printed circuit board components. The printed circuit board comprises heat conductor between the heating element and the component to be heated, the heat conductor receiving heat generated by the heating element and conducting the heat along the surface of the printed circuit board beneath the lower surface of the component to be heated. Furthermore, the printed circuit board comprises conductor parts which are narrower that the heat conductor, or which have a smaller cross-sectional surface area than does the heat conductor, and which restrict heat transfer away from the heat conductor to a component other than the one to be heated when the heat conductor functions as a ground plane or a signal path.