JP2968125B2 - Memory card and memory card insertion device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a memory card and a memory card insertion device with an increased amount of information that can be taken in and out.

[0002]

2. Description of the Related Art At present, cash cards, credit cards, and the like, which are widely used, are coated with a magnetic stripe on a plastic card and the information recorded on the magnetic stripe can be read to confirm the identity of the person. That's what I did. In such a magnetic recording system, information is easily read by a third party, and the amount of storable information is small.

Therefore, in recent years, a so-called IC card in which an IC having functions such as a memory and a CPU is mounted on a card-shaped base has been developed and put into practical use. It has also been proposed to mount an extremely thin semiconductor device on a card instead of the IC itself.

FIG. 4 is a schematic perspective view showing a conventional memory card, and FIGS. 5 and 6 are partially detailed sectional views of FIG. In the figure, 1 is a cover, 2 is a socket connector supported by the cover 1, 3 is a printed board, and 4 is a semiconductor device connected to the printed board 3 by a solder joint 5.

FIG. 7 is a schematic sectional view showing a memory card insertion device into which the memory card shown in FIG. 4 is inserted. In the figure, reference numeral 6 denotes a pin connector provided with a pin 7 to be inserted into the socket connector 2 of the memory card.

As described above, when the memory card is inserted into the memory card insertion device, the pins 7 of the pin connector 6 are inserted into the socket connector 2 so that information can be taken in and out.

This memory card is thicker than the IC card. However, since each function itself uses a resin-encapsulated semiconductor device, its reliability is high and its mechanical strength is high. In addition, there is an advantage that mass production is excellent due to easiness of manufacturing, and that the information capacity is large. In recent years, with the development and spread of this memory card, the amount of information on the card has increased tremendously. Moreover, the memory card has a thickness of 3.3 mm, a height of 85.6 mm, and a width of 54.0.
mm. Also, the size of the semiconductor device mounted on the memory card has been significantly reduced,
When the number of semiconductor devices mounted on a memory card of the same size is doubled, the amount of information stored is also doubled. For this reason, the number of exchanged signals has also doubled.

[0008]

However, in the memory card having the above configuration, as described above, if the amount of information stored in the memory card of the same size is doubled, the number of exchanged signals also increases. The socket connector used for input / output of signals has a width of 54.0 mm and a thickness of 3.0.
Since it is 3 mm, there is a problem that a large number of socket connectors cannot be provided on a memory card of a limited size.

As described above, the present invention can store a large amount of information, but eliminates the problem that the number of connectors for sending and receiving signals is small. It is an object of the present invention to provide a memory card and a memory card insertion device capable of increasing the number of units.

[0010]

A memory card according to the present invention has a streamlined socket connector having a first contact, a second contact provided on at least one surface of a printed circuit board, and a second contact. And a shutter provided on a case surface facing the printed circuit board, wherein the socket connector is mounted on a front end of the printed circuit board.

In the memory card insertion device according to the present invention, the first external pin into which the first contact portion of the socket connector is inserted, and the shutter of the memory card when the memory card is inserted, are pushed and opened, so that the second contact portion of the printed circuit board is opened. And a second external pin that comes into contact with the second external pin.

[0012]

According to the present invention, the memory card can be provided with a large number of terminals that can be brought into contact with external pins, and can be smoothly attached to and detached from the memory card insertion device.

[0013]

FIG. 1 is a schematic sectional view showing an embodiment of a memory card according to the present invention. In the figure, 8 is a cover, 9
Is a streamlined socket connector having a plurality of first contact portions 10; 11 is a printed circuit board on which a plurality of second contact portions 12 and a plurality of semiconductor devices 4 are mounted; When the printed circuit board 11 is inserted into the memory card insertion device shown in FIG. 2, the shutter is pushed and opened by the external pins, and the external pins are connected to the second contact portion 1 of the inserted printed circuit board 11.
Touch 2.

The connection terminal of the memory card according to this configuration has the first contact portion 10 and the second contact portion 12, and can be twice as large as the memory card shown in FIG.

FIG. 2 is a partially detailed sectional view showing an embodiment of the memory card insertion device according to the present invention. In the figure, reference numeral 14 denotes when the memory card shown in FIG. 1 is inserted.
A first plug inserted into the first contact 10 of the memory card
When the memory card shown in FIG.
Is a support.

[0016] The memory card insertion device according to this configuration is
When the memory card shown in FIG. 1 is inserted, the distal end of the socket connector 9 is streamlined, so that the second external pins 15 can be smoothly pushed and spread. Therefore, the first contact portion 10 of the memory card is inserted into the first external pin 14 of the memory card insertion device. Almost simultaneously with this insertion operation, the second external pin 15 of the memory card insertion device
Can open the shutter 13 of the memory card and contact the second contact portion 12 of the memory card as shown in FIG.

[0017]

As described in detail above, according to the memory card and the memory card insertion device according to the present invention,
A second contact portion is provided on a printed circuit board on which the semiconductor device is mounted on the memory card, and the second contact portion is provided on the memory card insertion device.
Since the second external pins that are in contact with the contact portions are added, there is an effect that much information can be exchanged.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view showing one embodiment of a memory card according to the present invention.

FIG. 2 is a partially detailed cross-sectional view showing one embodiment of a memory card insertion device according to the present invention.

FIG. 3 is a sectional view showing a state where the memory card of FIG. 1 is inserted into the memory card insertion device of FIG. 2;

FIG. 4 is a schematic perspective view showing a conventional memory card.

FIG. 5 is a partial detailed cross-sectional view of the memory card of FIG. 4;

FIG. 6 is a partially detailed sectional view of FIG. 5;

7 is a cross-sectional view showing a state where the memory card shown in FIG. 4 is inserted into a memory card insertion device.

[Explanation of symbols]

 9 Socket Connector 10 First Contact Part 11 Printed Circuit Board 12 Second Contact Part 13 Shutter

Claims (2)

(57) [Claims] 1. A memory card having a printed circuit board on which a plurality of semiconductor devices are mounted, and a case supporting the printed circuit board, wherein a streamlined socket connector having a first contact portion, and at least one of the printed circuit board A memory card comprising: a second contact portion provided on a surface; and a shutter provided on a case surface opposed to the second contact portion, wherein the socket connector is mounted on a front end portion of the printed circuit board. 2. A memory card insertion device in which a memory card having a printed circuit board on which a plurality of semiconductor devices are mounted and a case supporting the printed circuit board is inserted. A first external pin to be inserted, and a second external pin that pushes open a shutter of the memory card when the memory card is inserted and contacts a second contact portion of a printed circuit board, and the socket connector expands the second external pin. When the memory card is inserted, the second external pin is connected to the second external pin.
A memory card insertion device, wherein the contact portions are electrically connected.