Abstract:
A removable Flash integrated memory module card has a plastic shell and an integral Flash memory module. On the backside of the card, there are exposed contact pads. When the card is inserted into a card-hosting device, the card can communicate with the device through the exposed pads. The manufacturing method includes manufacturing of the memory module and utilizing plastic molding techniques for making the card outer body. The method involves preparing the substrate, mounting the components, testing the module, preparing the molding device, and molding the card body.
Abstract:
A surface-mount microconverter is formed by mounting a microinductor chip and a semiconductor integrated circuit chip on a circuit board. Stud terminals are arranged on the circuit board and the microinductor chip is supported on the stud terminals, and the microinductor chip and the semiconductor integrated circuit chip are superposed on the circuit board. The microconverter has an improved ability and is small and thin. The microconverter includes an effective laminated magnetic-core inductor. The inductor comprises a helical coil formed by uniting alternately superposed insulating magnetic layers and conductive pattern layers, and an annular closed magnetic path formed by the insulating magnetic layers and defining a magnetic field created by the coil. The inductor can be miniaturized in a thin chip, and a wide range in which magnetic flux density varies linearly can be secured by balancing a closed magnetic path for a magnetic field created by the coil.
Abstract:
Probe cards are configured with protective circuitry suitable for use in electrical testing of semiconductor dice without damage to the probe cards. Protective fuses are provided in electrical communication with conductive traces and probe elements (e.g., probe needles) of a probe card. The fuses may be active or passive fuses and are preferably self-resetting, repairable, and/or replaceable. Typically, the fuses will be interposed in, or located adjacent to, conductive traces residing over a surface of the probe card. Methods of fabricating a probe card are provided, as well as various probe card configurations. A semiconductor die testing system using the probe card is also provided.
Abstract:
The invention concerns a method for making a dashboard subassembly comprising electrical and/or electronic components (1) connected to conductors (2) and attached to a rigid support (3). The invention is characterized in that it consists in: providing a flexible mat (4) provided with said conductors (2); mounting said components (1) on said mat (4), connected to said electrical conductors (2); rigidizing said mat (4) by overmoulding it with a material designed to form said support (3). The invention also concerns a dashboard subassembly, in particular a motor vehicle dashboard console, obtained by said method.
Abstract:
Data bus capacitance is reduced by decoupling unaccessed memory circuits from a data bus during data transfers to or from other memory circuits.
Abstract:
Two circuit boards 1′ and 3′ are disposed vertically, and the relays 2 and 4, provided respectively on the circuit boards, are arranged side by side in a vertical or a horizontal direction. Each of the circuit boards 1′ and 3′ include a bus bar circuit board, and terminals 7 of each relay 2, 4 are connected to bus bars 6, 13 of the corresponding bus bar circuit board. Part of the bus bars 6, 13 of each of the circuit boards 1′, 3′ project outwardly from the circuit board to provide terminal portions 6c, 13c for forming a connector. The bus bars 6 on the one circuit board 1′ and/or the bus bars 13 on the other circuit board 3′ are covered with respective insulating sub-boards 9 and 14 to be insulated respectively from the second relays 4 and the first relays 2.
Abstract:
A surface-mount microconverter is formed by mounting a microinductor chip and a semiconductor integrated circuit chip on a circuit board. Stud terminals are arranged on the circuit board and the microinductor chip is supported on the stud terminals, and the microinductor chip and the semiconductor integrated circuit chip are superposed on the circuit board. The microconverter has an improved ability and is small and thin. The microconverter includes an effective laminated magnetic-core inductor. The inductor comprises a helical coil formed by uniting alternately superposed insulating magnetic layers and conductive pattern layers, and an annular closed magnetic path formed by the insulating magnetic layers and defining a magnetic field created by the coil. The inductor can be miniaturized in a thin chip, and a wide range in which magnetic flux density varies linearly can be secured by balancing a closed magnetic path for a magnetic field created by the coil.
Abstract:
Probe cards are configured with protective circuitry suitable for use in electrical testing of semiconductor dice without damage to the probe cards. Protective fuses are provided in electrical communication with conductive traces and probe elements (e.g., probe needles) of a probe card. The fuses may be active or passive fuses and are preferably self-resetting, repairable, and/or replaceable. Typically, the fuses will be interposed in, or located adjacent to, conductive traces residing over a surface of the probe card. Methods of fabricating a probe card are provided, as well as various probe card configurations. A semiconductor die testing system using the probe card is also provided.
Abstract:
A surface-mount microconverter is formed by mounting a microinductor chip and a semiconductor integrated circuit chip on a circuit board. Stud terminals are arranged on the circuit board and the microinductor chip is supported on the stud terminals, and the microinductor chip and the semiconductor integrated circuit chip are superposed on the circuit board. The microconverter has an improved ability and is small and thin. The microconverter includes an effective laminated magnetic-core inductor. The inductor comprises a helical coil formed by uniting alternately superposed insulating magnetic layers and conductive pattern layers, and an annular closed magnetic path formed by the insulating magnetic layers and defining a magnetic field created by the coil. The inductor can be miniaturized in a thin chip, and a wide range in which magnetic flux density varies linearly can be secured by balancing a closed magnetic path for a magnetic field created by the coil.
Abstract:
Disclosed is a flexible printed circuit board for use in a control handle. The circuit board includes resistive heating elements for heating electrical components in the circuit to limit the formation of frost and condensation on the components.