JPS58151299A - Collating card - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention identifies an individual or a group by a cryptographic code input from the outside, and stores the input signal, or processes and stores the input signal in a semiconductor device inside the card, or converts the input signal into the input signal. The present invention relates to an improvement of a verification card that plays a role such as transmitting a corresponding output signal.

This type of verification card includes a microprocessor, non-volatile memory, etc., and the semiconductor chip used is often a chip with a VOS structure, but this chip is easily destroyed by static electricity, so the verification card There was a drawback that the internal semiconductor device could be destroyed by operations such as rubbing it against clothing.

An object of the present invention is to provide a verification card having a structure that can prevent damage caused by static electricity.

In order to achieve the above object, the verification card according to the present invention has the following features: 1. Common connection of lead wires from predetermined electrode terminals of the semiconductor chip when the card is not in operation; It is important to keep it in a good condition.

Next, the present invention will be described in detail with reference to the drawings. 1st
The figures to FIG. 3 show an example of a verification card to which the present invention relates, in which a verification card (11 is a substrate 001 made of plastic or the like, and a case (13, Consists of - or multiple semiconductor chips (8) etc. in the case, with cover film on both sides,
Covered by α4. The VC in the case 03 usually includes two semiconductor chips used as a microprocessor and a memory, and each lead wire α6) from a predetermined electrode terminal α of the chip is connected to the case α by an insulating material (16b).
The contact part (15a) receives contact with the terminal (17) of the signal input/output crab knit and communicates. In the illustrated example, there are eight lead lines (161) that come into contact with the terminal 0η, but it goes without saying that the number may vary depending on the case. Also, these lead lines extend on both sides of the chip (S). It may extend to one side of the chip (S) as seen in FIG.

The feature of this collation card (11) is to maintain the common connection between the lead wires aet and d during non-operation, and therefore, as seen in Figure 5, the relay joint member α mark is as described below. So, the matching card is Shimako (17)
It is designed so that it does not conduct when it operates due to contact with the terminal, but conducts when it does not operate. If the case 0 is a metal case, the common conductor may be the case (121).The relay member marked a may be a conductor leaf spring Q8, one end of which is fixed to a conductor such as a case, A magnet Ql is provided at the other free end and is in contact with the lead wire αe.During operation, the magnet Ql is separated as shown by the imaginary line by the repulsive force of the rod-shaped magnet 2, which approaches the Kd terminal aη and becomes an independent circuit. If the leaf spring is made of a magnetic material, there is no need to provide the magnet αIt- as shown in FIG. A coil spring may also be used.

Further, the common conductor may be a thin metal piece C22), and it is preferable that the metal piece (22) is installed on a suitable support C23) as shown in Figure 7. . Preferably, such a support is a case made of resin. If constructed as a single assembly by mounting the metal piece (22)' on a support 1- as shown in FIG. ')
Easy assembly can be accomplished by K-fitting, which facilitates creation.

Relay members (not limited to springs as mentioned above, for example, as shown in Fig. 9, relay members (18a) connected between leader wire tt61 and common conductor [22)] It's okay. In this case, [Fi] is used that has a low resistance and has a resistance value that causes no problems during operation.

Further, as shown in FIG. 10, a semiconductor switch (18b
) may be configured as a relay member aB1-; in this case, the resistance increases when voltage from the signal input/output terminal 0η is applied, and when there is no voltage load, the resistance decreases, resulting in a commonly connected state. become. In some cases, relay member Gi
If it is constructed with an n-resistance and a non-linear semiconductor element such as a Zener diode, so that the current flows rapidly when the set voltage is exceeded, and the set voltage is made to be higher than the terminal voltage of the signal generator. good. The semiconductor device or semiconductor element described above may be configured with a composite element.

Note that the GND lead wire in FIG. 3 is for grounding and is always connected to the case a3 or the metal piece (22), so there is no need to connect a relay member at that position.

As described above, according to the present invention, the conduction of the predetermined lead wires that come into contact with the signal input/output terminals is interrupted at the Vc/fi relay member during operation, so that each becomes an independent circuit and connects to the signal input/output terminal. Although predetermined communication can be carried out, when the device is not in operation, the respective lead wires are commonly connected via a relay member, so that damage caused by static electricity can be appropriately prevented.

[Brief explanation of the drawing]

FIG. 1 is a plan view of the verification card, FIG. 2 is a front view thereof, FIG. 3 is a plan view of the main part of the verification card according to one example of the present invention, and FIG. 4 is a plan view of the main part of another embodiment. Figure 5 is a sectional view taken along the line A-A in Figure 3, Figure 6d is a partial sectional view of another main part, and Figure 7 is a partial sectional view showing the main part of another embodiment. 8 is a perspective view of the member shown in FIG. 7, and FIGS. 9 and 10 are sectional views similar to FIG. 6 showing different embodiments.

Claims (1)

[Scope of Claims] (l) In a collation card that communicates by receiving contact of each leader line signal input/output terminal from a predetermined electrode terminal of a semiconductor chip, the leader line is connected to the card. A verification card characterized in that it is connected to a common conductor through a relay member that is not conductive when it is in operation and conductive when it is not in operation. (2. The verification card according to claim 1, wherein the common conductor is a metal case containing the semiconductor chip. (3) 1% allowance according to claim 1. In the verification card, the common conductor is a thin metal piece. (4) In the verification card according to claim 3, the metal piece is installed on a support. card.