Abstract:
According to one embodiment, an electronic apparatus comprises a frame with a hollow portion formed inside thereof, a shield coating applied to the inner surface of the frame, a plurality of connection terminals having lead portions provided on the outside surface of the frame, and a module substrate which mounts circuit components on the front and rear surfaces thereof and which is placed on the frame in a state where at least the rear side circuit components are housed in the hollow portion with the circuit components on the front and rear surfaces connected to the connection terminals.
Abstract:
Multiple DIMM circuits or instantiations are presented in a single module. In some embodiments, memory integrated circuits (preferably CSPs) and accompanying AMBs, or accompanying memory registers, are arranged in two ranks in two fields on each side of a flexible circuit. The flexible circuit has expansion contacts disposed along one side. The flexible circuit is disposed about a supporting substrate or board to place one complete DIMM circuit or instantiation on each side of the constructed module. In alternative but also preferred embodiments, the ICs on the side of the flexible circuit closest to the substrate are disposed, at least partially, in what are, in a preferred embodiment, windows, pockets, or cutaway areas in the substrate. Other embodiments may only populate one side of the flexible circuit or may only remove enough substrate material to reduce but not eliminate the entire substrate contribution to overall profile. The flexible circuit may exhibit one or two or more conductive layers, and may have changes in the layered structure or have split layers. Other embodiments may stagger or offset the ICs or include greater numbers of ICs.
Abstract:
The present invention provides a circuit device in which warpage of a case member is prevented. The circuit device of the present invention includes: a circuit board having on an upper surface thereof a built-in hybrid integrated circuit constituted by a conductive pattern and a circuit element; a case member including four side wall parts forming a frame-like shape and being in contact with the circuit board so as to form on the upper surface of the circuit board a space in which the circuit element is sealed; and a lead being fixed to a pad composed of the conductive pattern and extending to the outside. The circuit device of the present invention is further provided with a supporting part arranged at a corner of the case member so as to make continuous inner walls of the respective side wall parts with each other.
Abstract:
A method of producing an electric component-mounted substrate having a cavity structure is provided. Because a supporting substrate and electric components and are connected together to a first face of a base substrate, the number of steps for the connection is reduced to shorten the producing time. When electric components are to be connected to a second face, the base substrate is supported by the supporting substrate, and the electric components and connected to the first face do not contact a processing table and therefore they undergo no damage. Thus, an electric component-mounted substrate having high reliability can be produced in a short time.
Abstract:
Multiple fully buffered DIMM circuits or instantiations are presented in a single module. In a preferred embodiment, memory integrated circuits (preferably CSPs) and accompanying AMBs are arranged in two ranks in two fields on each side of a flexible circuit. The flexible circuit has expansion contacts disposed along one side. The flexible circuit is disposed about a supporting substrate or board to place one complete FB-DIMM circuit or instantiation on each side of the constructed module. In alternative but also preferred embodiments, the ICs on the side of the flexible circuit closest to the substrate are disposed, at least partially, in what are, in a preferred embodiment, windows, pockets, or cutaway areas in the substrate. Other embodiments may only populate one side of the flexible circuit or may only remove enough substrate material to reduce but not eliminate the entire substrate contribution to overall profile. The flexible circuit may exhibit one or two or more conductive layers, and may have changes in the layered structure or have split layers. Other embodiments may stagger or offset the ICs or include greater numbers of ICs.
Abstract:
A printed circuit board assembly (20) is provided. The printed circuit board assembly includes a main printed circuit board (22), an accessorial printed circuit board (26), and a frame (24). The main printed circuit board includes at least one electronic component (222). The frame is secured to the main printed circuit board. The accessorial printed circuit board is attached to the main printed circuit board. The accessorial printed circuit board includes a shielding area (262). The shielding area is configured for engaging with the frame, whereby the shielding area and the frame cooperatively shield the at least one electronic component therein.
Abstract:
Three-dimensional structure (40) of the present invention includes first module board (28), second module board (37), and substrate joining member (10) that unifies board (28) and board (37) into one body, thereby electrically connecting these two elements together. The unification is done by molding the outer wall of housing (12) of substrate joining member (10) with resin (29). Substrate joining member (10) used in the three-dimensional structure (40) includes multiple lead terminals (14) made of conductive material, and a frame-shaped and insulating housing (12) to which frame the lead terminals (14) are fixed vertically in a predetermined array. Housing (12) includes projections (18) on at least two outer wall faces of its frame shape.
Abstract:
A hybrid integrated circuit device includes: an insulating substrate (1) having a lower surface formed with wiring patterns including ends arranged along ends of the lower surface at a predetermined pitch (P); electronic components (3) mounted on the surfaces of the insulating substrate to be connected to the wiring patterns; a pair of insulating legs (2) arranged at the ends of the lower surface of the substrate (1), each insulating leg extending in parallel to the lower surface of the substrate (1); and a plurality of terminal electrodes (5) formed on each leg at the pitch and extending perpendicularly to the substrate, where the plurality of terminal electrodes are connected to the wiring patterns on the lower surface of the substrate (1). Each leg has a surface bonded to the substrate and formed with electrode films connected to the terminal electrodes. Each leg is fixed to the substrate by attaching the terminal electrodes to the wiring patterns on the lower surface of the substrate (1) by soldering or by an electroconductive paste.
Abstract:
A circuit module includes connection electrodes on a plate-shaped board and connection electrodes on a frame-shaped board that are bonded together with conductive bonding materials there between. Circuit components are provided in portions of a surface of the plate-shaped board, the portions being located inward relative to the frame-shaped board. A sealing resin is filled and cured in a cavity, which is defined by the frame-shaped board and the plate-shaped board. Since the center of each of the connection electrodes on the frame-shaped board is inwardly displaced relative to the center of a corresponding one of the connection electrodes on the plate-shaped board by α, a curing contraction stress of the sealing resin is mitigated by a curing contraction stress of the conductive bonding materials. Thus, deformation of the frame-shaped board is suppressed.
Abstract:
The present invention provides a system and method for selectively stacking and interconnecting leaded packaged integrated circuit devices with connections between the feet of leads of an upper IC and the upper shoulder of leads of a lower IC while conductive transits that implement stacking-related intra-stack connections between the constituent ICs are implemented in multi-layer interposers or carrier structures oriented along the leaded sides of the stack, with selected ones of the conductive transits electrically interconnected with other selected ones of the conductive transits.