Abstract:
A method for making a leadframe includes removing a group of parallel, strip-shaped electrical conductors from a metal sheet, embedding end portions of the conductors in molding compound defining a leadframe body, and separating the conductors from each other, such that portions of the conductors remain encapsulated in the molding compound while other portions remain exterior to the molding compound and define leads of the resulting leadframe.
Abstract:
A multichip module comprises a flexible circuit having conductive patterns on its surface(s) to which microelectronic device(s) are attached. The flexible circuit is enclosed and supported by two rigid frames, which may further be provided with protective heat spreading covers. Contact pads on the rigid frame(s) may be configured to engage a mating socket or they may be solderable to a printed circuit board.
Abstract:
A fabricating method of a circuit board including the following steps. First, a liquid material is adhered between a first substrate and a second substrate by using an atmospheric pressure difference. Then, a plurality of conductive columns are formed in the first substrate and the second substrate. Next, a patterning process is performed, so as to form two circuit layers. Next, two lamination structures are formed respectively on the circuit layers. Then, the first substrate and the second substrate are separated. Finally, another patterning process is performed, so as to finish the fabrication of the circuit board.
Abstract:
An apparatus includes a coreless substrate with an embedded die that is integral to the coreless substrate, and at least one device assembled on a surface that is opposite to a ball-grid array disposed on the coreless substrate. The apparatus include an at least one stiffener layer that is integral to the coreless substrate and the stiffener layer is made of overmold material, underfill material, or prepreg material.
Abstract:
An electronic elements carrier includes a body, at least an electronic element and a filler. The body includes a substrate having a plate and a dam formed on the peripheral of plate, a conductive layer mounted on a surface of the dam, and at least a cavity defined by the plate and the dam of the substrate. The electronic element is disposed in the cavity of the body. The filler is received in the cavity of the substrate for encapsulating, sealing and protecting the electronic element.
Abstract:
An exemplary method of making an FPC includes forming a substrate comprising metal foil layers interleaved with intervening layers by: (a) laminating intervening layers with metal foil layers; (b) adhering a covering film to outermost surfaces of the substrate; (c) defining a hole in one side of the substrate through the covering film and at least two metal foil layers and the intervening layer between the at least two metal foil layers by etching or laser technology; and (d) plating a portion of an inner wall of the hole with conductive material to form a via to electrically connect the at least two metal foil layers.
Abstract:
A semiconductor device module includes a first substrate layer on which a first semiconductor device is surface-mounted, a second substrate layer that is a layer laminated on a side of the first substrate layer on which the first semiconductor device is not surface-mounted, a second semiconductor device being surface-mounted on a surface of the second substrate layer and not on a side of the first substrate layer, and a hollow section that is a space sandwiched between the first substrate layer and the second substrate layer and formed on back sides of areas on which the first semiconductor device and the second semiconductor device are surface-mounted.
Abstract:
A connection member can be produced without a via-forming step. The connection member includes an insulating substrate which has an upper surface, a lower surface opposed to the upper surface, and a side surface which connects these surfaces; and at least one wiring which extends from the upper surface to the lower surface through the side surface.
Abstract:
The present invention relates to a power supply circuit comprising at least one transformer which is connected to a primary side circuit and to a secondary side circuit. The present invention further relates to a method for producing such a power supply circuit. To provide an improved power supply circuit which has a reduced size and increased power density and offers more flexibility in the formation of the safety distances between primary side and secondary side, the primary side circuit and the secondary side circuit are each mounted on at least one separate circuit carrier, said circuit carriers being mechanically and electrically coupled to one another and arranged in at least two different planes. According to advantageous embodiments, said circuit carriers may be arranged in planes that are either parallel with or transverse to one another.
Abstract:
Card type information device includes wiring board having a wiring pattern with an electronic component mounted on a first face of wiring board and an antenna connecting electrode, antenna board having antenna pattern with antenna terminal electrodes formed on a first face of antenna board, magnetic material placed between wiring board and antenna board confronting each other, flexible wiring board for coupling the antenna connecting electrode to antenna terminal electrode, and housing for accommodating wiring board, antenna board, magnetic material, and flexible wiring board. Wiring board and antenna board are made from one and the same insulating motherboard.