JPH03187792A - Ic card - Google Patents

Abstract

PURPOSE:To eliminate limitation of mounting position of an IC contact and to improve degree of freedom of design by providing electronic components on one side surface of a printed circuit board and an IC contact on the other side surface, and so bending the board at about 180 deg. from the midway as to dispose the contact on the outer surface side. CONSTITUTION:A both-side type printed circuit board 3 and a cell 7 are provided between sheath plates 1 and 1, and the board 3 is so bent at about 180 deg. from its midway as to dispose an IC contact 6 on the outer surface side. An integrated circuit element 4, a capacitor 5 and a liquid crystal display 12 are arranged on the inner surface side of the board 3, and a key input unit 8 is provided between the board 3 and the plate 1. Since the board 3 is bent at about 180 deg., the contact 6 can be, for example, provided at the reverse surface side of the unit 8 to improve the degree of freedoms of its design. The element 4 and the capacitor 5 are arranged between the opposed parts of the board 3, and protected against an external pressure by the board 3 to prevent a trouble.

Description

DETAILED DESCRIPTION OF THE INVENTION CObject of the Invention (Field of Industrial Application) The present invention relates to an IC card used for, for example, a credit card or an fD card.

(Prior art) An IC card has a double-sided printed circuit board inside, and electronic components such as integrated circuit elements and capacitors are arranged on one side of the printed circuit board, and IC contacts are placed on the other side. Alternatively, electronic components are disposed on the same side of a single-sided printed circuit board, and IC contacts are attached via connecting components.

(Problem to be Solved by the Invention) However, in the former case, the front-back relationship between the IC contact and the electronic component becomes a design constraint, and in the latter case, connecting parts for the IC contact are required.
There were problems in that the structure was complicated and the cost was high.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an IC card which can be freely designed without being restricted by the front-back relationship between IC contacts and electronic components, and which is structurally simple and inexpensive.

[Structure of the Invention] (Means for Solving the Problem) In order to solve the above problem, a first invention provides an electronic component on one side of a printed circuit board and an IC contact on the other side, and the IC contact is provided on the outer surface. The printed circuit board is bent approximately 180' from the middle so that the printed circuit board is located on the side, and the second invention is characterized in that electronic components and IC contacts are provided on one side of the printed circuit board, The printed circuit board is bent approximately 180' from the middle so that the IC contacts are located on the outer surface side.

(Function) The means of the first invention makes it possible to provide an IC contact on the side opposite to the conventional one, and the means of the second invention makes it possible to provide an IC contact on the side opposite to the conventional one, and with the means of the second invention, even if the IC contact is a single-sided printed circuit board,
It is now possible to attach IC contacts without using any connecting parts.

(Example) The present invention will be described below with reference to embodiments shown in the drawings.

Figure 1 shows the first invention, the IC card K.
In the figure, numerals 1 and 1 are exterior plates facing each other with a spacer 2 in between.

A double-sided printed circuit board 3 and a battery 7 are provided between the exterior plates 1.1.

The printed circuit board 3 is bent approximately 180' from the middle so that an IC contact 6, which will be described later, is located on the outer surface side.

On the inner surface of this printed circuit board 3, an integrated circuit element (LSI) 4 as electronic components, a capacitor 5, and a liquid crystal display (LCD) 12 are arranged.

The integrated circuit element 4 and the capacitor 5 are provided between opposing parts of the printed circuit board 3.

The integrated circuit element 4 is electrically connected to the printed circuit board 3 via wire bonding 10 and is molded with epoxy resin 11.

Further, an IC contact 6 is provided on the outer surface side of the printed circuit board 3, and a mounting portion 6a of this IC contact 6 is provided.
is formed in a protruding manner so as to be flush with the exterior plate 1, and its outer periphery is opposed to and overlapped with the inner surface of the exterior plate 1.

Further, a key manpower section 8 is provided between the printed circuit board 3 and the exterior board 1.

Note that reference numerals 9 and 9 are positioning holes provided at opposing positions on the printed circuit board 3.

Then, the IC card is inserted into an IC card insertion slot of a laser printer (not shown), and information is exchanged with the laser printer via the IC contact 6, and image processing is performed.

As described above, since the printed circuit board 3 is bent approximately 180', the IC contact 6 can be provided, for example, on the opposite side of the key input section 8, and the degree of freedom in design can be improved.

Furthermore, since the integrated circuit element (LSI>4 and the capacitor 5 are arranged between the opposing parts of the bent printed circuit board 3), the integrated circuit element (LSI) 4 and the capacitor 5 are protected against external pressure by the printed circuit board 3. It is possible to prevent the occurrence of failures.

Furthermore, since the mounting portion 6a of the IC contact 6 of the printed circuit board 3 is formed in a protruding manner so as to be flush with the exterior plate 1, the level difference between the exterior plate 1 and the IC contact 6 is reduced.
The storage capacity for internal parts can be increased.

Furthermore, since the exterior plate 1 and the printed circuit board 3 are overlapped around the IC contacts 6, airtightness can also be improved.

Furthermore, since the positioning holes 9.9 are formed in the printed circuit board 3, manufacturing efficiency can be improved.

Note that the printed circuit board 3 does not need to be bent over its entire width, but as shown in FIG. Also good.

In addition, by narrowing the width of the base of the bending part 3a, removing the substrate base material, creating a fly lead with only a wiring pattern, or removing the cover film, the rigidity can be reduced to make it easier to bend. Manufacturability may be improved by doing so.

Furthermore, the number of boards does not have to be one, but two or more boards may be connected and bent at some point. FIG. 3 shows an IC card of the second invention.

In the figure, reference numerals 21 and 21 are exterior plates facing each other with a spacer 22 in between.

A printed circuit board 23 is provided between the exterior plates 21 and 21.

This printed circuit board 23 is provided with an integrated circuit element (LSI) 24 as electronic components, a battery 25, and an IC contact 26.

The integrated circuit element 24 is electrically connected to the printed circuit board 23 via wire bonding 27 and molded with epoxy resin 28.

The printed circuit board 23 is approximately 180 degrees from its midway point.
It is bent, and the IC contact 26 is located on the outer surface side.

According to this second invention, even if the printed circuit board 23 is a single-sided type a, the IC contacts 26 can be attached without using contact connection parts, the structure can be simplified, and the cost can be reduced. can do.

[Effects of the Invention] As explained above, according to the first invention, the mounting position of the IC contact is not limited, and the degree of freedom in design can be improved.

Furthermore, according to the second aspect of the invention, IC contacts can be attached even to a single-sided printed circuit board without using connection parts, and costs can be reduced.

[Brief explanation of drawings]

Fig. 1 is a configuration diagram showing an IC card which is an embodiment of the first invention, Fig. 2 is a perspective view showing another embodiment, and Fig. 3 is an IC card which is an embodiment of the second invention. FIG. 3.23... Printed circuit board, 4... Integrated circuit element (electronic component), 5... Capacitor (electronic component), 6
...IC contact. Figure 1

Claims (2)

[Claims] (1) An electronic component was provided on one side of the printed circuit board, and an IC contact was provided on the other side, and the printed circuit board was bent approximately 180 degrees from the middle of the board so that the IC contact was located on the outer side. An IC card that is characterized by (2) Electronic components and ICs are placed on one side of the printed circuit board.
An IC card characterized in that the printed circuit board is provided with contacts and is bent approximately 180 degrees from the middle of the printed circuit board so that the IC contacts are located on the outer surface side.