JP2008093354A - Circuit board for game machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To facilitate the detection of llicit modification, and to suppress the occurrence of llicit act itself by making transparent a circuit board to be arranged in a game machine. <P>SOLUTION: The circuit board 1 for the game machine, on which prescribed electric/electronic components are mounted, is formed of a transparent or translucent member through which light rays transmit at least. The electric/electronic components and/or wiring patterns mounted on one surface can be visualized from another board surface. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a circuit board disposed in a gaming machine, and more particularly to an improvement of a circuit board that facilitates discovery of a malicious fraud that remodels a circuit board by making the circuit board transparent.

In general, gaming machines such as slot machines and pachinko machines can acquire medals, etc. that are exchangeable for cash depending on the outcome of the game. Various measures have been taken to protect against the above.
In particular, fraudulent acts on the main board, which is the center of gaming machine control, tend to occur frequently.
The main board is a circuit board composed of a component mounting surface on which a large number of predetermined electrical and electronic components such as CPUs, ROMs, RAMs, resistors, capacitors, connectors, and heat sinks are mounted, and a solder surface on the back side. It is.
Examples of fraudulent acts on the main board having such a configuration include, for example, an act of replacing a legitimate ROM mounted on the main board with an illegal ROM, and fraud on the back surface of the electrical / electronic component mounted on the main board. An act of attaching a simple part or an act of attaching an illegal wiring such as a jumper wire to the main board and changing a wiring pattern can be seen.

As a specific example of fraud, there are examples of fraudulent modifications to the conventional main board, as shown in FIGS. 8 (a) and 8 (b). In this example, unauthorized parts are mounted on the solder surface of the main board and jumper wiring is applied.
Generally, the main board of a gaming machine is arranged in a gaming machine with the component mounting surface facing up so that it can be easily confirmed whether or not the component mounted on the component mounting surface is a legitimate component. Furthermore, mounting electrical / electronic parts etc. on the solder surface is prohibited by regulations.
A fraudulent person often takes such restrictions on the main board in the reverse direction and performs illegal modification on the solder surface as shown in the example of FIG.
In order to find such an unauthorized modification, the main board must be removed and the solder surface must be confirmed, and confirmation by a store clerk or the like becomes complicated, and the discovery of unauthorized modification tends to be delayed.
And when it is discovered, there are many cases after a large amount of game media is exploited.

  The series of frauds mentioned above, including this modification, are aimed at forcibly generating jackpots and excessive payout of game media, and these acts are increasingly sophisticated so that they cannot be easily discerned by appearance. In response to this trend, there is an increasing demand for sophisticated anti-fraud measures for the main board.

Currently, there are two main types of improper countermeasures related to the main board. One is to strengthen the protection of the board case that covers the main board, and the second is to facilitate the detection of fraud. is there.
First, as a technique for strengthening the protection of the substrate case, a caulking structure is generally adopted for the substrate case so that the substrate case cannot be easily opened.
The caulking structure is a seal that cannot be opened or closed by screwing and fastening with a special screw that rotates only in the direction in which the upper case and the lower case constituting the board case are tightened. Adopted and has a certain effect as a countermeasure against fraud.

On the other hand, technologies for facilitating the detection of fraudulent activities include the transparency of the substrate case and the seals that specify the model and manufacturer so as not to hinder the visibility of the mounting surface and the solder surface of the main substrate. Technology is required by regulations.
By making the substrate case transparent, fraudulent acts within a visible range can be easily detected.
In addition, an invention is also disclosed in which a colored liquid is scattered and adhered to the main substrate by opening the substrate case (Patent Document 1).
According to the invention described in Patent Document 1, a trace of unsealing of the main board case due to fraud remains, and the fraud fact can be reliably detected at an early stage.

In addition, in order to facilitate the discovery of unauthorized opening of the substrate case, a seal seal may be applied across both the upper case and the lower case. An invention is disclosed in which a transparent conductive layer capable of measuring a value is provided (Patent Document 2).
According to the invention described in Patent Document 2, for example, even if an illegal act such as skillfully cutting the seal seal is performed, the resistance value is measured by a tester or the like, so that it differs from a predetermined value. Can easily find fraud facts without examining the traces as fraud.

JP 2003-144721 A JP-A-10-118289

However, the techniques disclosed so far cannot sufficiently solve the above-described conventional problems, and new problems also arise.
In the invention described in Patent Document 1, fraudulent discovery is easier due to the traces of scattered liquid, but the act of performing fraud after skillfully cutting the substrate case and removing the liquid from the bag filled with liquid There is a possibility that it cannot be dealt with.

Further, the seal seal described in Patent Document 2 is effective as a countermeasure against fraud against the main board because it can be easily determined whether the substrate case has been opened through cutting the seal seal or the like. It may be difficult to determine whether or not the discovery has been delayed. Moreover, the visibility of the main substrate is lowered due to the presence of the seal seal, which results in going against the current obligation to make the substrate case transparent.
All of the above-mentioned technologies identify fraud facts indirectly from the traces of opening the substrate case that protects the main board. Since it is difficult to specify the contents directly, there is a possibility that it takes time to find the facts.

  The present invention has been proposed in order to solve the problems of the conventional techniques as described above, and facilitates the discovery of unauthorized modification by making the circuit board disposed in the gaming machine transparent. In addition, an object is to provide a circuit board for gaming machines that can suppress the occurrence of fraud itself.

  In order to achieve the above object, a circuit board for gaming machine according to the present invention is a circuit board for gaming machine on which a predetermined electric / electronic component is mounted as described in claim 1, wherein the circuit board comprises: An electric / electronic component and / or a wiring pattern that is formed of at least a transparent or translucent member that transmits light and is mounted on the other substrate surface from one substrate surface is visible.

According to the circuit board for gaming machine of the present invention having such a configuration, since the board itself is formed of a transparent or translucent member, the other side can be seen through from one side of the board, For example, an unauthorized component mounted on the solder surface on the back surface from the component mounting surface of the substrate can be found without removing the main substrate from the gaming machine.
Furthermore, it is possible to directly and easily determine the unauthorized modification such as unauthorized electrical / electronic parts hidden in the back of the regular part, unauthorized wiring such as jumper wires, etc., and early detection of unauthorized modification is achieved.
Further, since the substrate can be seen through, it is expected that the crime is discouraged from the ease of detecting the fraud, and the fraudulent act itself can be suppressed.

In particular, the circuit board for gaming machines according to claim 2 may be configured such that the wiring pattern is made of a transparent or translucent conductive material that transmits at least light.
By adopting such a configuration, in addition to the substrate being seen through, the wiring pattern is also transparent or translucent, the presence of unauthorized parts is obscure, and the GND area, etc., is taken as countermeasures against electrostatic noise. Even when it is desired to ensure a wide area, the other surface can be viewed from one surface without being blocked by this region.

The circuit board for gaming machines according to claim 3 may be configured such that when the wiring pattern is formed in a predetermined pattern area, a non-pattern portion capable of transmitting light is formed in the area. .
By adopting such a configuration, in the same way as described above, when it is desired to secure a wide GND area, it is possible to transmit light in this area, for example, by forming a lattice-shaped non-patterned portion, thereby making it transparent or translucent. Both the visibility of the substrate made of the members and the practicality of countermeasures against static electricity noise can be ensured.

The gaming machine circuit board according to claim 4, wherein the non-patterned portion is formed on the plurality of board surfaces when the circuit board is a double-sided board or a multilayer board having a plurality of board surfaces. At the same time, the non-patterned portion can be configured to coincide on each substrate surface.
By adopting such a configuration, for example, even when a grid-like GND pattern is formed on a double-sided substrate, the visibility of the transparent or translucent substrate is ensured without interference of both wiring patterns.

Furthermore, the circuit board for gaming machines according to claim 5 may be configured such that the predetermined electrical / electronic component mounted on the circuit board is made of a transparent or translucent member that transmits at least light.
By adopting such a configuration, a predetermined electrical / electronic component becomes a transparent or translucent member. Therefore, when the electrical / electronic component itself is tampered with or between the electrical / electronic component and the substrate, When a fraudulent part is concealed and attached, the trace can be found early.

The circuit board for gaming machine according to claim 6, wherein when the circuit board is a double-sided board or a multilayer board having a plurality of board surfaces, a wiring pattern is formed on the plurality of board surfaces, The wiring patterns formed on different substrate surfaces can be colored in different colors.
By adopting such a configuration, the color of the wiring pattern is different for each of the plurality of board surfaces, so that it is easy to identify the board surface that has been tampered with even if tampered.
In addition, by coloring the wiring pattern in this way, the tampering can be caused by its peculiarity, and it becomes a deterrent against fraud.

  According to the circuit board for gaming machine of the present invention, by making the circuit board disposed in the gaming machine transparent, discovery of unauthorized modification can be facilitated, and the occurrence of unauthorized act itself can be suppressed.

Hereinafter, a preferred embodiment of a circuit board for gaming machine according to the present invention will be described with reference to FIGS.
[First embodiment]
[Arrangement state of circuit boards for gaming machines]
Initially, the accommodation state and arrangement | positioning state of the circuit board for game machines which concern on this embodiment are demonstrated, referring FIGS. 1-2.
The gaming machine circuit board of the present embodiment is applied to the main board 1 which is a circuit board for controlling the entire gaming machine.
FIG. 1 is a schematic perspective view showing a configuration in which a main board 1 according to this embodiment is accommodated in a board case, and FIG. 2 is a state in which the main board 1 according to this embodiment is also arranged in a gaming machine. It is a schematic perspective view which shows.

As shown in FIG. 1, a main board 1 disposed in a gaming machine is accommodated in a board case including an upper case that covers a component mounting surface of the main board 1 and a lower case that covers a solder surface of the main board 1. The structure is sealed so that it cannot be opened with a caulking structure.
Both cases are made of a material such as a colorless and transparent synthetic resin having a hardness and strength that do not easily crack or deform.
With such a configuration, it is difficult to take out the main board 1 from the board case due to the caulking structure, the main board 1 is protected from unauthorized modification, and the board case is transparent. It is easy to find unauthorized alterations.

Next, a state where the main board 1 accommodated in the board case is disposed in the gaming machine will be described.
As shown in FIG. 2, a slot machine is applied to a gaming machine on which the main board 1 according to the present embodiment is disposed.
In the slot machine on which the main board 1 according to the present embodiment is disposed, a spinning-type game that can acquire a game medium by rotating a plurality of reels provided in the slot machine as in the conventional slot machine. Make up machine.

Specifically, the slot machine includes a main board 1 which is composed of a microcomputer or the like and a housing opened on the front side for housing necessary machines and devices, and a front side of the housing. It consists of a front door that can be covered.
As shown in the figure, the front door is a door that can be freely opened and closed to the casing of the slot machine via a hinge or the like, and constitutes a front part that is provided with a front panel and other parts. Yes.

It should be noted that the machines, devices, etc. of each part and each part constituting the slot machine and their control are well known, and detailed description thereof will be omitted here, and only the characteristic configuration of the invention will be described. To do.
The main board 1 according to the present embodiment is disposed in the slot machine having such a configuration.
In detail, as shown in the figure, the main board 1 is detachably attached to the rear part of the housing with the component mounting surface facing up, while being accommodated in the board case described above, and the machine of each part. -It is connected to the device etc. via an electric cable (not shown).

[Configuration of main board]
Next, the configuration of the main substrate 1 according to the present embodiment will be described with reference to FIGS.
FIG. 3 is a cross-sectional view showing the constituent materials of the main board 1 according to the present embodiment.
In the example shown in FIG. 1, the main board 1 includes a predetermined CPU, a RAM, a ROM storing a predetermined program, a clock generation circuit, a random number generation circuit, an interface circuit with various peripheral circuits, a resistor, a capacitor, a connector, and a heat sink. A circuit board comprising a component mounting surface on which a large number of predetermined electrical / electronic components are mounted and a solder surface on the back surface.
And it is comprised with the double-sided board by which the predetermined wiring pattern was printed on both surfaces.

In the example shown in FIG. 3, the base material of the main substrate 1 is formed of transparent glass as a transparent or translucent member that transmits at least light.
In this case, the transmitted light is visible light, and an electric / electronic component and / or a wiring pattern mounted on the other board surface can be visually recognized from one board surface by human eyes having normal visual acuity. Transparency to the extent that
In addition, although the preferable base material of the main board | substrate 1 is colorless and transparent glass, it is not restricted to this.
For example, not only colored transparent glass, translucent glass, or glass, but also transparent or translucent resin that transmits light can be used.

Furthermore, the wiring pattern according to the present embodiment is formed on both the front and back surfaces of a transparent conductive film (for example, ITO: indium tin oxide) that transmits light and has high conductivity (see FIG. 4).
Even in this case, the transmitted light is visible light, and it has transparency to the extent that the wiring pattern can be seen through.
The color of the wiring pattern is preferably colorless and transparent, but is not limited thereto.
For example, even if it is colored transparent or semi-transparent, it is sufficient if the wiring pattern can be seen through.

Specifically, this wiring pattern is obtained by depositing and depositing ITO on a glass substrate of a base material by using a sputtering method, which is a method of forming a transparent conductive film on liquid crystal, EL, etc. After forming the film, it is printed on a glass substrate so as to form a desired pattern by etching.
Furthermore, a short circuit between wiring patterns due to solder or the like is prevented by forming an insulating resist film that transmits visible light on the surface.
In addition, the mounting of electrical / electronic components such as the CPU described above is performed first by using a method of drilling fine abrasive grains on a glass substrate or by using a diamond drill to open a lead hole. After the lead terminal is inserted, it is mounted by soldering with an Ag paste or the like from the solder surface on the back surface (not shown).

Since the main substrate 1 according to the present embodiment having such a configuration is formed of a transparent glass member that transmits visible light, the other surface can be seen through from one surface of the substrate. Thus, it is possible to find an illegal component mounted on the solder surface on the back surface from the component mounting surface of the substrate without removing the main board from the gaming machine.
Furthermore, it is possible to directly and easily determine the unauthorized modification such as unauthorized electrical / electronic parts hidden in the back of the regular part, unauthorized wiring such as jumper wires, etc., and early detection of unauthorized modification is achieved.
In addition, since the substrate is transparent, it is expected that the crime is discouraged from the ease of detecting the fraud, and the fraud itself can be suppressed.
In addition, since the wiring pattern is also made of a transparent conductive film, the presence of unauthorized parts is obscure, and even if it is desired to secure a wide GND area, for example, against static noise, it is not blocked by this area. The other surface can be visually recognized from one surface.

[Example of unauthorized modification]
Next, an example in which unauthorized modification is actually performed on the main board 1 according to the present embodiment will be described.
FIG. 4 is a view as seen from the component mounting surface showing an example in which an unauthorized component is mounted on the solder surface of the main board 1 according to the present embodiment.
In the example shown in the figure, an illegal part is mounted on the solder surface of the main board 1 of FIG. 1 described above, and an illegal pattern such as a jumper line is formed.
As described above, the main substrate 1 according to the present embodiment is made of a transparent member and is made of a transparent conductive wiring pattern. Therefore, the state of the solder surface can be visually recognized even from the component mounting surface. It is possible to easily discriminate the mounted illegal parts.

[Electrical and electronic parts made of light-transmitting members]
Next, a case where predetermined electrical / electronic components mounted on the main board 1 according to the present embodiment are made of a transparent mold resin that transmits light will be described with reference to FIG.
FIG. 5 is a view as seen from the component mounting surface showing an example in which the material of the electric / electronic component of the main board 1 according to the present embodiment is a member that transmits light.
In the example shown in the figure, the material of the DIP type electronic component is configured using a transparent mold resin that transmits light for sealing a light emitting element such as an LED. In the figure, an illegal component is mounted in the gap between the electronic component and the board.
In this case, the transmitted light is visible light, and has transparency that allows the electronic component to be seen through.
The color of the electronic component is preferably colorless and transparent, but is not limited thereto.
For example, even if it is colored transparent or translucent, it is sufficient if the electronic component can be seen through.
In this way, when the electronic component is made of a transparent mold resin that transmits visible light, the electronic component itself is illegally modified or concealed between the electronic component and the substrate. When worn, the trace can be found early.

As described above, according to the main board 1 of the present embodiment, the circuit board disposed in the gaming machine is made transparent, thereby facilitating the discovery of unauthorized modification and suppressing the occurrence of unauthorized acts themselves. it can.
In the present embodiment, the wiring pattern is a transparent conductive pattern, but may be an opaque metal film pattern. Even in this case, unauthorized parts can be easily found by transmitting visible light to the substrate.

Further, when the pattern of the opaque metal film is used, the wiring pattern of the component mounting surface and the solder surface can be colored in different colors by changing the type of metal constituting, for example.
By changing the coloring of the wiring pattern in this way, the color of the wiring pattern is different for each of the plurality of board surfaces. Therefore, even when unauthorized modification is performed, it is easy to identify the board surface that has been illegally modified.
In addition, coloring the wiring pattern makes it possible to make unauthorized modification due to its peculiarity, and serves as a deterrent to unauthorized acts.

[Second Embodiment]
Next, a second embodiment of the circuit board for gaming machine according to the present invention will be described with reference to FIGS. 6 (a), 6 (b), and 7. FIG.
FIG. 6A is a diagram seen from the component mounting surface showing an example in which the GND pattern of the main board 1 according to the present embodiment is formed in a grid pattern, and FIG. It is the figure seen from the solder surface which shows the example which formed the GND pattern in the grid | lattice form.
Moreover, FIG. 7 is sectional drawing which shows the constituent material of the main board | substrate 1 which concerns on this embodiment.
As shown in these drawings, the circuit board for gaming machine of the present embodiment is a modified embodiment of the first embodiment described above, and visible light is transmitted through a predetermined pattern region of the main substrate 1 of the first embodiment. It is a lattice pattern that forms a possible non-pattern part.
Therefore, other components are the same as those in the first embodiment, and the same components are denoted by the same reference numerals as those in the first embodiment in the drawing, and detailed description thereof is omitted.

Specifically, the main substrate 1 according to the present embodiment is composed of a double-sided substrate in which a copper foil is pasted on a transparent glass base material through which visible light is transmitted and a copper-clad laminate is used, and the wiring pattern region is wide. The GND region is configured in a lattice shape that forms a non-patterned portion that can transmit visible light.
[Configuration of main board]
The configuration of the main substrate 1 according to the present embodiment will be described with reference to FIGS. 6 (a), 6 (b), and 7. FIG.
In the example shown in each figure, the main substrate 1 according to the present embodiment is composed of a double-sided board in which a copper foil is pasted on both sides of a transparent glass base material through which visible light is transmitted, and a wiring pattern is It is printed on both sides of the substrate by etching (see FIG. 7).
In particular, the GND area, which has a wide pattern area on both the component mounting surface and the solder surface, is configured in a grid pattern that forms a non-patterned portion, and the pitch widths (X, Y) of the grids on both sides are the same. These are matched (see FIGS. 6A and 6B).
Then, it is assumed that unauthorized parts are attached to the solder surface of the main board 1.

According to the main board 1 of this embodiment having such a configuration, in addition to the base material of the main board 1 being made of a transparent member that transmits visible light, both the component mounting surface and the solder surface are provided with a wiring pattern. It is mounted on the solder surface from between the non-patterned parts of the component mounting surface by making the grid shape to form the part and making the pitch width (X, Y) of the lattices on both sides the same and matching each board surface Unauthorized parts can be easily identified.
In addition, since a region as a GND surface is secured as a grid-like wiring pattern, it is possible to maintain a resistance against electrostatic noise.
In the present embodiment, the non-pattern part is a regular lattice-like slit, but may be irregular.
Further, the shape of the non-patterned portion such as a slit shape or an annular shape is not limited, and any shape that can transmit visible light is within the scope of the present invention.

The gaming machine circuit board of the present invention has been described with reference to the preferred embodiment, but the gaming machine circuit board according to the present invention is not limited to the above-described embodiment, and the scope of the present invention. Needless to say, various modifications can be made.
For example, in the above-described embodiment, the present invention is applied to the main board that controls the entire gaming machine, but is not limited thereto. For example, the present invention can be applied to a sub board or a peripheral board of a gaming machine.

  The game machine to be applied is not limited to the slot machine, and may be, for example, a pachinko machine or any game machine having a circuit board. As this type of gaming machine, there are various gaming machines such as an arrangement ball machine, a sparrow ball machine, etc. in addition to a slot machine (including pachilot and parrot) and a pachinko machine. be able to.

  The present invention can be widely applied to circuit boards disposed in gaming machines.

It is a schematic perspective view which shows the structure by which the main board | substrate which concerns on 1st embodiment of this invention is accommodated in a substrate case. It is a schematic perspective view which shows the state by which the main board | substrate which concerns on 1st embodiment of this invention was arrange | positioned at the gaming machine. It is sectional drawing which shows the constituent material of the main board | substrate which concerns on 1st embodiment of this invention. It is the figure seen from the component mounting surface which shows the example by which the unauthorized component was mounted | worn with the solder surface of the main board which concerns on 1st embodiment of this invention. It is the figure seen from the component mounting surface which shows the example which used the material of the electrical / electronic component of the main board | substrate which concerns on 1st embodiment of this invention as the member which permeate | transmits light. (A) It is the figure seen from the component mounting surface which shows the example which formed the GND pattern of the main board | substrate which concerns on 2nd embodiment of this invention in the grid | lattice form. (B) It is the figure seen from the solder surface which shows the example which formed the GND pattern of the main board | substrate which concerns on 2nd embodiment of this invention in the grid | lattice form. It is sectional drawing which shows the constituent material of the main board | substrate which concerns on 2nd embodiment of this invention. (A) It is a component mounting figure which shows the example of a tampering modification with respect to the conventional main board | substrate. (B) It is a solder surface figure which shows the example of a tampering modification with respect to the conventional main board | substrate.

Explanation of symbols

    1 Main board

Claims (6)

A circuit board for a gaming machine on which predetermined electrical / electronic components are mounted,
The circuit board is formed of a transparent or translucent member that transmits at least light,
A circuit board for a gaming machine, wherein an electric / electronic component and / or a wiring pattern mounted on the other board surface is visible from one board surface.   The circuit board for gaming machines according to claim 1, wherein the wiring pattern is made of a transparent or translucent conductive material that transmits at least light.   The circuit board for gaming machines according to claim 1 or 2, wherein, when the wiring pattern is formed in a predetermined pattern region, a non-pattern part capable of transmitting light is formed in the region.   In the case where the circuit board is composed of a double-sided board or a multilayer board having a plurality of board surfaces, the non-patterned part is formed on the plurality of board surfaces, and the non-patterned part is made to coincide with each other on the board surface. The circuit board for gaming machines according to claim 3.   The circuit board for gaming machines according to any one of claims 1 to 4, wherein the predetermined electrical / electronic component mounted on the circuit board is made of a transparent or translucent member that transmits at least light.   When the circuit board is composed of a double-sided board or a multi-layer board having a plurality of board surfaces, wiring patterns are formed on the plurality of board surfaces, and wiring patterns formed on different board surfaces are colored in different colors. The circuit board for gaming machines according to any one of claims 1 to 5.

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