摘要:
On an adapter mounting portion 3a having a projecting cross section which is formed on a cap 3 of a small-sized memory card 1, a recessed portion of an adapter 2 side is fitted so that both parts are formed as an integral unit in a replaceable manner Accordingly, the small-sized memory card 1 can maintain the dimensional compatibility with respect to existing memory cards whereby the small-sized memory card 1 can be used also in equipment which is designed to cope with the existing memory cards.
摘要:
A semiconductor device is formed by laminating two semiconductor chips with the rear surfaces thereof provided face to face. Each semiconductor chip is provided with an outer lead for clock enable to which the clock enable signal and chip select signal are individually input. On the occasion of making access to one semiconductor chip, the other semiconductor chip is set to the low power consumption mode by setting the clock enable signal and chip select signal to the non-active condition.
摘要:
Two semiconductor chips are bonded to each other with the rear surfaces of the respective semiconductor chips faced to each other, so that two longer sides of the semiconductor chips may confront the side of leads, and supporting leads are bonded and fixed onto the circuit forming surface of one of the semiconductor chips. The semiconductor chips are further bonded to each other in a state where the positions of the respective semiconductor chips are staggered relative to each other so that electrodes of one semiconductor chip may lie outside the other longer side of the other semiconductor chip, and that electrodes of the second semiconductor chip may lie outside the other longer side of the first semiconductor chip.
摘要:
A semiconductor device comprising a resin mold, two semiconductor chips positioned inside the resin mold and having front and back surfaces and external terminals formed on the front surfaces, and leads extending from the inside to the outside of the resin mold, wherein each of said leads is branched into two branch leads in at least the resin mold, the one branch lead is secured to the surface of the one semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, the other branch lead is secured to the surface of the other semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, and the two semiconductor chips are stacked one upon the other, with their back surfaces opposed to each other.
摘要:
A first semiconductor chip (2) is bonded and secured to a second semiconductor chip (3) with a back surface of the first semiconductor chip (2) and a circuit forming surface (3X) of the second semiconductor chip (3) facing each other, and an inner portion of a support lead (6) is bonded and secured to the circuit forming surface (3X) of the second semiconductor chip (3). Such a configuration makes it possible to provide a semiconductor with a reduced thickness.
摘要:
A LOC type semiconductor device comprises a semiconductor chip having a main surface in which semiconductor elements and a plurality of bonding pads are formed, and a back surface opposite the main surface; a plurality of leads each having an inner part and an outer part, and including a plurality of first leads having inner end portions extended on the main surface of the semiconductor chip and a plurality of second leads having inner end portions terminating near the semiconductor chip; bonding wires electrically connecting the bonding pads to bonding portions of the inner parts of the first and the second leads; and a sealing member sealing the semiconductor chip therein. A first bending portion is formed in the inner part of each second lead to prevent the sealing member from transformation by forming the sealing member in satisfactory resin balance between an upper portion and a lower portion of the sealing member.
摘要:
A semiconductor device comprising a resin mold, two semiconductor chips positioned inside the resin mold and having front and back surfaces and external terminals formed on the front surfaces, and leads extending from the inside to the outside of the resin mold, wherein each of said leads is branched into two branch leads in at least the resin mold, the one branch lead is secured to the surface of the one semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, the other branch lead is secured to the surface of the other semiconductor chip and is electrically connected to an external terminal on the surface thereof through a wire, and the two semiconductor chips are stacked one upon the other, with their back surfaces opposed to each other.
摘要:
A multifunction card device has an external connection terminal, an interface controller, a memory, and the security controller connected to the interface controller and the external connection terminal. The interface controller has a plurality of interface control modes, and controls an external-interface action and a memory interface action by the control mode according to the instruction from the outside. The external connection terminals have an individual terminal individualized for every interface control mode, and a communalized common terminal. A clock input terminal, a power supply terminal, and an earthing terminal are included in the common terminals. A data terminal, and a dedicated terminal of the security controller are included in the individual terminals. Partial communalization and individualization of an external connection terminal attain a guarantee of the reliability of an interface, and increase control of physical magnitude to some kinds of interface control modes. The security process by a security controller independent interface can also be guaranteed.
摘要:
In an IC card, there is provided a technique capable of large expandability of a memory volume, and a memory volume and a cost matched with a user's requirement. A SIM adapter 101 has a top panel 104 for covering a recess portion. In the top panel 104, when a memory card 103 is not inserted, the top panel 104 is positioned at a first height, and, when the memory card 103 is inserted, a part of the top panel 104 is engaged with a part of the SIM adapter 101 so that the top panel is latched at a second height higher than the first height. Also, into a SIM adapter, a top panel for fixing a memory card when the memory card is inserted is inserted, and a part of the top panel is engaged with a part of the SIM adapter so that the top panel is latched when the memory card is inserted. Further, into a SIM adapter, a top panel for fixing a memory card when the memory card is inserted is inserted, and the top panel has a terminal strip contacting with both of a terminal of the SIM adapter and a terminal of the memory card so that the terminal strip electrically connects between both of them.
摘要:
A semiconductor device includes external interface terminals and processing circuits, and it is fed with an operating power source when detachably set in a host equipment. Power source feeding terminals (VCC, VSS) among the external interface terminals are long enough to keep touching the corresponding terminals of the host equipment for, at least, a predetermined time period since the separation of an extraction detecting terminal among the external interface terminals, from the corresponding terminal of the host equipment, and they are formed to be longer in the extraction direction of the semiconductor device than the extraction detecting terminal. The processing circuits include an interface control circuit (2) which is connected to the external interface terminals, and a rewritable nonvolatile memory (3) which is controlled by the interface control circuit. The nonvolatile memory stores information on the basis of the difference of the threshold voltages of memory cells. The interface control circuit causes a storage area midway of a threshold voltage initialization process to complete a process in which the threshold voltages of the memory cells are uniformalized into a predetermined threshold voltage distribution, before the power source is cut off after the separation of the extraction detecting terminal from the corresponding terminal of the host equipment.