WO2019051716A1

WO2019051716A1 - Novel security patch board and pos machine using security patch board

Info

Publication number: WO2019051716A1
Application number: PCT/CN2017/101746
Authority: WO
Inventors: 吴煌殿
Original assignee: 福建联迪商用设备有限公司
Priority date: 2017-09-14
Filing date: 2017-09-14
Publication date: 2019-03-21
Also published as: CN107820625A

Abstract

A novel security patch board and a POS machine using the security patch board. The machine comprises a security patch board (1), a zebra stripe (2) and a PCB (3), wherein the security patch board (1) comprises a glass substrate (11), a silicon dioxide barrier layer (12) and an ITO mesh layer (13) in sequence; a mesh trace is provided on the ITO mesh layer (13); one face of the zebra stripe (2) is attached and electrically connected to the PCB (3), and the other face is attached and electrically connected to the ITO mesh layer (13) on the security patch board (1); and the number of zebra stripes (2) is at least one. A fragile security patch board and a zebra stripe are combined to protect a PCB, without requiring tin soldering; an external signal can detect a device on the PCB when the security patch board is moved or damaged; and a security action of a POS machine can be triggered when the security patch board is moved or damaged, so that the usage security of the POS machine is improved.

Description

New security patch board and POS machine using the security patch board

[0001] The present invention relates to the field of POS security technologies, and in particular, to a new security patch board and a POS machine using the same.

Background technique

[0002] In the security scheme of the POS machine, in order to prevent the probe from detecting the sensitive signal of the PCB board, it is often necessary to use the PCB security patch board to protect these sensitive signals, such as some safe routing, via, RC, etc. .

[0003] Current PCB security patch boards are implemented by wrapping a secure mesh signal on the PCB. We all know that PCB boards are laminated one by one, which means that they can be broken one by one, thus breaking the safety mesh signal layer by layer. For some safety traces or safety via protection, the PCB security patch board requires at least 4 layers of HDI boards in order to achieve a sufficient level of security. If it is necessary to protect some of the resistors and capacitors involved in safety, at least 6 layers of HDI are required. The board, and also hollow out the PCB security patch board to hide the resistance, in order to achieve a sufficient level of security. Multi-layer HDI boards are costly, and if they are 6-layer HDI boards that need to be hollowed out of the PCB security patch board, they are not only costly but also cumbersome to produce.

[0004] At the same time, due to the thick thickness of the PCB security patch board, in the actual PCB production patch, the case of the virtual soldering often occurs, resulting in an increase in the product defect rate.

technical problem

[0005] The technical problem to be solved by the present invention is: to provide a new type of security patch board and a POS machine using the same, which improves the security of the PCB board in the POS machine, and improves the avoidance of the solder joint on the other hand. Situation, improve product yield.

[0006] Technical solutions and benefits

[0007] In order to solve the above technical problem, the technical solution adopted by the present invention is:

[0008] A new type of security patch board includes a security patch board, which in turn includes a glass substrate, a silicon dioxide barrier layer, and an ITO mesh layer, and the ITO mesh layer is provided with a mesh trace.

[0009] The beneficial effects of the present invention are as follows: a fragile glass substrate is used as the substrate of the ITO mesh layer, and a silicon dioxide barrier layer is disposed between the glass substrate and the ITO mesh layer to prevent sodium ions on the glass substrate from being transferred to the ITO. The mesh layer is diffused. The mesh trace on the ITO mesh layer is the trace part of the security patch board. It functions as a circuit connection. The fragile security patch board protects the peripheral PCB board. On the one hand, welding is not required. It can prevent the occurrence of solder joints and improve the yield of the product. On the other hand, the signal on the PCB board can be detected when the security patch board moves or damages the glass substrate, and the glass substrate has fragile characteristics once the glass is broken. The substrate is easy to cause chipping. In addition, once the security patch board is moved or the glass substrate is damaged, the circuit connection is broken, and the safety of the PCB board is improved. Compared with the security patch board manufactured by the PCB method, it is easy to process. The fragile features can reduce production costs, increase production efficiency, and improve the safety of security patch boards.

[0010]

[0011] A POS machine using a new security patch board includes a security patch board, a zebra strip, and a PCB board, the security patch board sequentially including a glass substrate, a silicon dioxide barrier layer, and an ITO mesh layer, the ITO mesh layer a mesh line is disposed, the zebra strip is electrically connected to the PCB board, and the other side is electrically connected to the ITO mesh layer on the security patch board, and the ITO mesh layer is in contact with the zebra. The strips are provided with mesh traces, and the number of the zebra strips is at least one.

[0012] The beneficial effects of the present invention are: using a fragile security patch board to protect the peripheral PCB board, the security patch board is attached to one side of the zebra strip, and the other side of the zebra strip is attached to the PCB board, the zebra strip The aspect plays the role of electrically connecting the security patch board and the PCB board, and on the other hand, prevents the security patch board from contacting the devices on the PCB board. The security patch board adopting the above structure does not need to be welded on the one hand, and can be prevented from appearing. In the case of virtual soldering, the yield of the product is improved. On the other hand, the signal on the PCB board can be detected in the case of a mobile security patch board, a glass substrate that damages the security patch board, or a moving zebra strip, and the glass substrate is fragile. Characteristics, once the glass substrate is damaged, it is easy to cause chipping. In addition, once the security patch board moves, the glass substrate breaks or the zebra strip moves, the circuit connection will be broken, triggering the safety of the POS machine to destroy the data, and greatly improving the PCB board. The security of use.

Problem solution

Advantageous effects of the invention

Brief description of the drawing

DRAWINGS

1 is a schematic structural diagram of a new security patch board according to an embodiment of the present invention; 2 is a front view showing a connection of a security patch board to a zebra strip and a PCB board according to an embodiment of the present invention;

3 is a perspective view showing a connection between a security patch board and a zebra strip and a PCB board according to an embodiment of the present invention;

4 is a ground line and signal line trace diagram of a zebra strip according to an embodiment of the present invention.

[0017] Description of the label:

[0018] 1. Security patch board; 2. Zebra strip; 3. PCB board;

[0019] 11, a glass substrate; 12, a silicon dioxide barrier layer; 13, an ITO mesh layer; 14, a graphite layer;

[0020] 21, closed area; 22, ground line; 23, signal line.

Detailed ways

[0021] Please refer to FIG. 1 , the present invention provides a new type of security patch board, including a security patch board 1 , which in turn comprises a glass substrate 11 , a silicon dioxide barrier layer 12 and an ITO mesh layer 13 . A mesh trace is provided on the ITO mesh layer 13.

[0022] Further, the security patch board 1 further includes a graphite layer 14 on the surface of the ITO mesh layer 13.

As can be seen from the above description, the graphite layer 14 is provided on the surface of the ITO mesh layer 13, which can effectively prevent the TIO mesh layer from being oxidized without affecting the electrical conductivity of the ITO mesh layer 13.

[0024] Further, the line width and the line pitch of the mesh traces of the ITO mesh layer 13 are both 6 mils.

[0025] As can be seen from the above description, the line width and the line pitch of the mesh trace of the ITO mesh layer 13 are both 6 mils. Since the line width and the line pitch are both narrow, it is not easy to accurately detect each mesh trace by the external probe.

Further, the glass substrate 11 is a soda lime substrate glass or a silicon boron substrate glass.

[0027] As can be seen from the above description, the glass substrate 11 is a soda-lime substrate glass or a silicon-boron substrate glass, which is convenient for processing and production.

[0028] Further, the ITO mesh layer 13 faces the peripheral PCB board 3, and is electrically connected to at least one zebra strip 2 of the peripheral device, and the ITO mesh layer 13 is attached to the zebra strip 2 There are mesh lines in the joint.

[0029] As can be seen from the above description, the ITO on the security patch board 1

The mesh layer 13 faces the PCB board 3, and the security patch board 1 is attached to one side of the zebra strip 2, and the other side of the zebra strip 2 is attached to the PCB board 3, so that the security patch board 1 does not need to be soldered, and the security patch board 1 The device on the PCB board 3 can be shielded, and the use safety of the PCB board 3 can be improved.

[0030] Further, the ITO mesh layer 13 is located at a position corresponding to the sensitive signal device of the PCB board 3. There are mesh lines at the place.

[0031] As can be seen from the above description, the PCB board 3 is mounted with a device having a sensitive signal, and the security patch board 1 is provided with a mesh trace at a position corresponding to the device of the sensitive signal, so that the external probe does not damage the security patch board 1 In the case of the device, it is impossible to detect a device with a sensitive signal, and the safety of the use of the PCB 3 is improved.

[0032]

Referring to FIG. 1, the first embodiment of the present invention is:

[0034] A new type of security patch board includes a security patch board 1, and the security patch board 1 includes a glass substrate in sequence.

11. A silicon dioxide barrier layer 12 and an ITO mesh layer 13, wherein the ITO mesh layer 13 is provided with a mesh trace.

Referring to FIG. 1, the second embodiment of the present invention is:

[0036] A new type of security patch board, in addition to the first embodiment, in order to prevent the ITO mesh layer 13 from being oxidized, the security patch board 1 is further provided with a graphite layer 14 on the surface of the ITO mesh layer 13, Ensure the electrical conductivity of the security patch board 1.

Referring to FIG. 1, the third embodiment of the present invention is:

[0038] A new security patch board, based on the first or second embodiment, specifically, the line width and the line spacing of the mesh traces of the ITO mesh layer 13 are both 6 mils, preventing the external probe from detecting the mesh. The glass substrate 11 is a soda-lime substrate glass or a silicon-boron substrate glass for easy processing.

Referring to FIG. 1, the fourth embodiment of the present invention is:

[0040] A new type of security patch board, based on the first or second embodiment, for the manner of using the security patch board 1, the ITO mesh layer 13 faces the peripheral board PCB 3, and at least one of the peripherals Zebra strip 2 is attached to the electrical connection; for the mesh routing setting of the security patch board 1, the ITO

The mesh layer 13 is provided with a mesh trace at a position where it is attached to the zebra strip 2, and further, the ITO mesh layer 13 is also provided with a mesh trace at a position corresponding to the sensitive signal device of the PCB board 3.

[0041]

[0042] Referring to FIG. 1 to FIG. 4, a POS machine using a new security patch board includes a security patch board 1, a zebra strip 2, and a PCB board 3. The security patch board 1 sequentially includes a glass substrate 11, and is oxidized. Silicon barrier layer 12 and I TO mesh layer 13, the ITO

The mesh layer 13 is provided with a mesh trace, the zebra strip 2 - surface is electrically connected to the PCB board 3 , and the other surface is electrically connected to the ITO mesh layer 13 on the security patch board 1 . ITO mesh layer 13 The zebra strip 2 is provided with a mesh trace, and the number of the zebra strips 2 is at least one.

[0043] Further, the security patch board 1 further includes a graphite layer 14 on the surface of the ITO mesh layer 13.

[0044] As is apparent from the above description, the graphite layer 14 is provided on the surface of the ITO mesh layer 13, which can effectively prevent the TIO mesh layer from being oxidized without affecting the electrical conductivity of the ITO mesh layer 13.

[0045] Further, the line width and the line spacing of the mesh traces of the ITO mesh layer 13 are both 6 mils.

[0046] As can be seen from the above description, the line width and the line pitch of the mesh trace of the ITO mesh layer 13 are both 6 mils. Since the line width and the line pitch are both narrow, it is difficult to accurately detect each mesh trace by the external probe.

[0047] Further, the ITO mesh layer 13 is provided with a mesh trace at a position corresponding to the sensitive signal device of the PCB board 3.

[0048] As can be seen from the above description, the PCB board 3 is mounted with a device having a sensitive signal. The security patch board 1 is provided with a mesh trace at a position corresponding to the device having the sensitive signal, so that the external probe does not damage the security patch board. In the case of 1 , a device with a sensitive signal cannot be detected, and the safety of the use of the PCB 3 is improved.

[0049] Further, the number of the zebra strips 2 is two.

[0050] As can be seen from the above description, the number of the zebra strips 2 is two, which effectively supports the security patch board 1 to prevent the security patch board 1 from being installed in a skew condition, wherein the two zebra strips 2 are parallel. Settings, or cross settings.

[0051] Further, a sensitive signal device on the PCB 3 is disposed between the two zebra strips 2.

[0052] As can be seen from the above description, the sensitive signal device on the PCB board 3 is disposed between the two zebra strips 2, on the one hand, the security patch board 1 is used to protect the device with sensitive signals on the PCB board 3, and on the other hand, The two zebra strips 2 protect the sensitive signal devices on the PCB board 3 on the PCB board 3, improving the security of the use of the PCB board 3.

[0053] Further, three or more of the zebra strips 2 are sequentially connected end to end to form a closed figure.

[0054] As can be seen from the above description, more than three zebra strips 2 are connected in series to form a closed figure.

, improve the complexity, stability and security of the PCB 3, zebra strip 2 and security patch board 1 connection structure.

Further, the inside of three or more of the zebra strips 2 enclosing the closed pattern is a closed area 21, and the sensitive signal device on the PCB board 3 is disposed in the closed area 21.

[0056] As can be seen from the above description, the inside of the closed pattern surrounded by three or more zebra strips 2 is a closed area 21, and the device with sensitive signals on the PCB board 3 is disposed in the zebra strip 2 Closed In the area 21, after the zebra strip 2 and the security patch board 1 are connected to the PCB board 3, the external probe can be effectively prevented from detecting the sensitive signal on the PCB board 3, and the use security of the PCB board 3 is further improved.

[0057] Further, the number of the zebra strips 2 is three, and the three zebra strips 2 are connected end to end in a triangle.

[0058] As can be seen from the above description, the three zebra strips 2 are sequentially connected end to end to form a triangle, and the structure is reasonable, and the installation and use are convenient.

[0059] Further, the number of the zebra strips 2 is four, and the four zebra strips 2 are connected end to end in a quadrangular shape.

[0060] As can be seen from the above description, the four zebra strips 2 are connected end to end in a quadrangular shape, and the structure is reasonable, and the installation and use are convenient.

[0061] Preferably, the four zebra strips 2 are connected end to end in a rectangular shape for easy processing and installation.

[0062] Further, the zebra strip 2 connects the mesh traces on the security patch board 1 in series with the PCB board 3.

[0063] As can be seen from the above description, when the line between the PCB board 3, the zebra strip 2, and the security patch board 1 is connected, any one of the PCB board 3, the zebra strip 2, and the security patch board 1 is moved. The line is broken, triggering the safety of the POS machine or the safety contacts, and the structure is reasonable and the safety is high.

[0064] Further, the upper surface and the lower surface of the zebra strip 2 are respectively provided with a ground line 22 and a signal line 23, and the ground line 22 of the upper surface of the zebra strip 2 is symmetrically disposed with the ground line 22 of the lower surface. The signal line 23 on the upper surface of the zebra strip 2 is symmetrically disposed with the signal line 23 on the lower surface. The upper surface of the zebra strip 2 and the ground line 22 corresponding to the lower surface are connected in series, and the upper surface and the lower surface of the zebra strip 2 correspond to each other. The signal lines 23 of the position are connected in series, and at least one edge of the upper surface or the lower surface of the zebra strip 2 is provided with a ground line 22.

[0065] As can be seen from the above description, the zebra strip 2 has not only the signal line 23 but also the ground line 22. The upper surface and the lower surface of the zebra strip 2 are symmetrical, which is convenient for processing, and the ground line 22 on the zebra strip 2 is distributed in the zebra strip. At the edge of 2, the signal line 23 on the zebra strip 2 is further protected by the ground wire 22 to improve the safety of the zebra strip 2 itself.

[0066] Further, at least two edges of the upper surface or the lower surface of the zebra strip 2 are provided with a ground line 22.

[0067] As can be seen from the above description, the ground line 22 is provided at at least two edges of the upper surface or the lower surface of the zebra strip 2 to ensure the safety of the use of the zebra strip 2.

[0068] Further, a ground line 22 is disposed at four edges of the upper surface or the lower surface of the zebra strip 2 . [0069] As can be seen from the above description, the ground wire 22 is provided at the four edges of the upper surface or the lower surface of the zebra strip 2

, to ensure the safety of the use of zebra strips 2.

[0070] Further, the start end and the end end of the signal line 23 on the zebra strip 2 are sequentially arranged side by side.

[0071] As can be seen from the above description, the start end and the end end of the signal line 23 on the zebra strip 2 are arranged side by side, so that the ends of the line are collectively arranged on the zebra strip 2, the security patch board 1, and the PCB board 3, which is convenient. Processing also facilitates centralized protection of the ends of the line.

[0072] Preferably, the start end and the end end of the signal line 23 of at least one of the zebra strips 2 are juxtaposed at the same side edge of the zebra strip 2 to facilitate the processing and installation of the zebra strip 2 .

Further, one signal line 23 of the zebra strip 2 is surrounded by another signal line 23 located outside thereof and adjacent thereto.

[0074] As can be seen from the above description, at least one signal line 23 is provided on the zebra strip 2, and two or more signal lines 23 are on the zebra strip 2, and one of the signal lines 23 is located on the outer side thereof. The adjacent signal line 23 is surrounded to prevent the external probe from detecting multiple signal lines 23 at the same time, further improving the safety of the use of the zebra strip 2, and improving the safety of the POS machine.

Further, the starting end and the terminating end of each zebra strip 2 are distributed in a zigzag manner from the outer ring to the inner ring in parallel, thereby ensuring the density distribution and safety of use of the signal lines 23 on the zebra strips 2.

[0076]

Referring to FIG. 1 to FIG. 4, Embodiment 5 of the present invention is:

[0078] A POS machine using a new security patch board includes a security patch board 1, a zebra strip 2, and a PCB board 3, which in turn includes a glass substrate 11, a silicon dioxide barrier layer 12, and an ITO layer.

Mesh layer 13, the ITO

The mesh layer 13 is provided with a mesh trace, the zebra strip 2 - surface is electrically connected to the PCB board 3 , and the other surface is electrically connected to the ITO mesh layer 13 on the security patch board 1 . The ITO mesh layer 13 is provided with a mesh trace at a position where the zebra strip 2 is attached, and the number of the zebra strips 2 is at least one. Specifically, the height of the zebra strip 2 is greater than the height of the plaque strip 3 and the security patch board. 1 The height of the device at the corresponding position prevents the security patch board 1 from coming into contact with the device on the PCB board 3.

Referring to FIG. 1 to FIG. 4, Embodiment 6 of the present invention is:

[0080] A POS machine using a new security patch board, based on the fifth embodiment, in order to prevent security patches The ITO mesh layer 13 of the board 1 is oxidized, and the security patch board 1 is further provided with a graphite layer 14 on the surface of the ITO mesh layer 13 without affecting the electrical conductivity of the security patch board 1.

Referring to FIG. 1 to FIG. 4, Embodiment 7 of the present invention is:

[0082] A POS machine using a new type of security patch board, based on the fifth or sixth embodiment, the line width and line spacing of the mesh traces of the ITO mesh layer 13 are both 6 mils, preventing external probes from being detected. For the mesh routing, only the mobile security patch 1 or the security patch 1 can detect the mesh routing, and the security patch 1 uses the glass substrate 11 as the substrate, which is vulnerable to devastating attacks, whether it is safe or not. The patch board 1 moves or the glass substrate 11 on the security patch board 1 is broken, which will trigger the safety contact on the POS machine, causing the POS machine to clear important data and ensure data security.

[0083] Further, the ITO mesh layer 13 is provided with a mesh trace at a position corresponding to the sensitive signal device of the PCB board 3, and the device having the sensitive signal on the PCB board 3 is not detected. The mesh trace on the security patch board 1 is bypassed to ensure the security of the PCB board 3.

Referring to FIG. 1 to FIG. 4, Embodiment 8 of the present invention is:

[0085] A POS machine using a new type of security patch board, based on the fifth embodiment, the number of the zebra strips 2 is two, which can not only effectively support the security patch board 1, but also prevent the security patch board 1 from being skewed. A sensitive signal device on the PCB board 3 may be disposed between the two zebra strips 2, and the zebra strip 2 blocks the sensitive signal device on the P CB board 3, and the two zebra strips 2 may be arranged in parallel , or tilt each other

Referring to FIG. 1 to FIG. 4, Embodiment 9 of the present invention is:

[0087] A POS machine using a new type of security patch board, based on the fifth embodiment, three or more of the zebra strips 2 are sequentially connected end to end to form a closed pattern, and the ground line 22 on the adjacent zebra strips 2 can be Electrical connection to improve the connection between the zebra strips 2.

[0088] Further, the inside of the three or more zebra strips 2 enclosing the closed pattern is a closed area 21, and the sensitive signal device on the PCB board 3 is disposed in the closed area 21 through the zebra strip 2 effectively shielding the device with sensitive signals on the PCB 3, further preventing the external probe from detecting these sensitive signals.

[0089] Specifically, the number of the zebra strips 2 is three, and the three zebra strips 2 are connected end to end in a triangle shape; or the number of the zebra strips 2 is four, and the four zebra strips 2 are tail and tail. Connected into a quadrilateral, preferably The ground is rectangular, or the number of the zebra strips 2 is five, and the zebra strips are connected end to end in a pentagon shape, or the number of the zebra strips 2 is six, and the zebra strips 2 are connected in a hexagonal shape.

Referring to FIG. 1 to FIG. 4, Embodiment 10 of the present invention is:

[0091] A POS machine using a new type of security patch board. On the basis of the fifth embodiment, the zebra strip 2 connects the mesh traces on the security patch board 1 and the PCB board 3 in series. Any movement of PCB board 3, zebra strip 2, and security patch board 1 will cause the line to break. Once the line is broken, it will trigger the safety contact of the PO S machine, trigger the POS machine to clear important data, and protect the POS machine data security. Sex.

Referring to FIG. 1 to FIG. 4, the eleventh embodiment of the present invention is:

[0093] A POS machine using a new type of security patch board, on the basis of the fifth or tenth embodiment, the upper surface and the lower surface of the zebra strip 2 are provided with a ground line 22 and a signal line 23, and the zebra strip The ground line 22 of the upper surface is symmetrically disposed with the ground line 22 of the lower surface, and the signal line 23 of the upper surface of the zebra strip 2 is symmetrically disposed with the signal line 23 of the lower surface, and the upper surface and the lower surface of the zebra strip 2 are correspondingly disposed. The ground wires 22 are connected in series, and the signal lines 23 corresponding to the upper surface of the zebra strip 2 and the lower surface are connected in series, and at least one edge of the upper surface or the lower surface of the zebra strip 2 is provided with a ground line 22, which is located in the zebra The ground line 22 at the edges of the upper and lower surfaces of the strip 2 serves as a shield for the signal line 23.

[0094] Preferably, at least two edges of the upper surface or the lower surface of the zebra strip 2 are provided with a grounding wire 22 for protecting the signal line 23 on the zebra strip 2.

[0095] Preferably, the ground line 22 is disposed at four edges of the upper surface or the lower surface of the zebra strip 2 to effectively protect the signal line 23 on the zebra strip 2.

[0096] Specifically, the start end and the end end of the signal line 23 on the zebra strip 2 are arranged side by side in order to arrange the signal lines 23 on the zebra strip 2 in an orderly manner; further, one of the zebra strips 2 The signal line 23 is surrounded by another signal line 23 located outside thereof and adjacent thereto, effectively preventing the external probe from detecting the two signal lines 23 at the same time; further, due to the start end and the end end of each signal line 23 Arranged in parallel, the starting end and the ending end of each of the zebra strips 2 are distributed in a zigzag manner from the outer ring to the inner ring in a zigzag manner, making it difficult for the probe to distinguish the signal lines 23.

[0097] In addition, the winding manner of the signal line 23 on the zebra strip 2 is not limited by the above embodiments. For example, the signal lines 23 on the zebra strip 2 are distributed in a zigzag manner, and the plurality of signal lines 23 are in accordance with the mouth. The manner of the glyphs is distributed around; or the signal lines 23 on the zebra strips 2 are arranged in order of rectangular waves. [0098]

[0099] In summary, the new security patch board and the POS machine using the security patch board use a fragile security patch board 1 to block the PCB board 3 in the POS machine, and use the security patch board 1 The mesh is routed to block the sensitive signal on the PCB 3 and the traces on the zebra strip 2, and the zebra strip 2 is used to connect the circuit on the security patch board 1 with the circuit on the PCB 3, using the zebra strip 2 To protect the security patch board 1, the zebra strip 2 is also used to shield the device with sensitive signals on the PCB board 3, and the ground line 22 on the zebra strip 2 is used to protect the signal line 23 on the zebra strip 2. , security patch board 1, zebra strip 2 installation does not require soldering, only in the case of mobile security patch board 1, damage security patch board 1 or moving zebra strip 2 can detect sensitive signals on the PCB board 3 The device improves the safety of the use of the PCB board 3, improves the safety of the POS machine, and improves the product yield.

Claims

Claim

[Claim 1] A novel security patch board, comprising: a security patch board, wherein the security patch board comprises a glass substrate, a silicon dioxide barrier layer and an ITO mesh layer in sequence, and the mesh is provided on the ITO mesh layer Traces.

[Claim 2] The novel security patch board according to claim 1, wherein the security patch board further has a graphite layer on a surface of the ITO mesh layer.

[Claim 3] The novel security patch board according to claim 1 or 2, wherein the mesh width and the line pitch of the mesh traces of the ITO mesh layer are both 6 mils.

[Claim 4] The novel security patch panel according to claim 1 or 2, wherein the glass substrate is a soda lime substrate glass or a silicon boron substrate glass.

[Claim 5] The new security patch board according to claim 1 or 2, wherein the ITO mesh layer faces the peripheral PCB board and is electrically connected to at least one zebra strip of the peripheral device.

The ITO mesh layer is provided with a mesh trace at a position where the zebra strip is attached.

[Claim 6] The novel security patch board according to claim 5, wherein the ITO mesh layer is provided with a mesh trace at a position corresponding to the sensitive signal device of the PCB board.

[Claim 7] A POS machine using a novel security patch board, comprising: a security patch board, a zebra strip, and a PCB board, wherein the security patch board includes a glass substrate, a silicon dioxide barrier layer, and an ITO mesh layer in this order. The ITO mesh layer is provided with a mesh trace, and one side of the zebra strip is electrically connected to the PCB board, and the other side is electrically connected to the ITO mesh layer on the security patch board, and the ITO mesh is electrically connected. The layer is provided with a mesh trace at a position where the zebra strip is attached, and the number of the zebra strips is at least one.

[Claim 8] The POS machine using the new security patch board according to claim 7, wherein the security patch board further has a graphite layer on the surface of the ITO mesh layer.

[Claim 9] The POS machine using the new security patch board according to claim 7 or 8, characterized in that

The mesh width and line spacing of the mesh trace of the ITO mesh layer are both 6 mils.

[Claim 10] The POS machine using the new security patch board according to claim 7 or 8, wherein

The ITO mesh layer is provided with a mesh trace at a position corresponding to the sensitive signal device of the PCB board.

[Claim 11] The POS machine using the new security patch board according to claim 7, wherein the number of the zebra strips is two.

[Claim 12] The POS machine using the new security patch board according to claim 11, wherein the sensitive signal device on the PCB is disposed between the two zebra strips.

[Claim 13] The POS machine using the new security patch board according to claim 7, wherein three or more of the zebra strips are sequentially connected end to end to form a closed figure.

[Claim 14] The POS machine using the novel security patch board according to claim 13, wherein the inside of three or more of the zebra strips enclosing the closed pattern is a closed area on the PCB board A sensitive signal device is disposed within the enclosed area.

[Claim 15] The POS machine using the new security patch board according to claim 13 or 14, wherein the number of the zebra strips is three, and the three zebra strips are connected end to end in a triangle

[Claim 16] The POS machine using the new security patch board according to claim 13 or 14, wherein the number of the zebra strips is four, and the four zebra strips are connected end to end in a quadrangular shape.

[Claim 17] The POS machine using the new security patch board according to claim 7, wherein the zebra strip connects the mesh traces on the security patch board in series with the PCB board.

[Claim 18] The POS machine using the new security patch board according to claim 7 or 17, wherein the upper surface and the lower surface of the zebra strip are provided with a ground line and a signal line, and the zebra strip The ground line of the upper surface is symmetrically disposed with the ground line of the lower surface, the signal line of the upper surface of the zebra strip is symmetrically disposed with the signal line of the lower surface, and the ground line of the upper surface of the zebra strip and the corresponding position of the lower surface are connected in series. Signal lines corresponding to positions on the upper surface and the lower surface of the zebra strip are connected in series, and at least one edge of the upper surface or the lower surface of the zebra strip is provided with a ground line.

[Claim 19] The POS machine using the novel security patch board according to claim 18, wherein a ground line is provided at at least two edges of the upper surface or the lower surface of the zebra strip.

[Claim 20] The POS machine using the new security patch board according to claim 18, wherein a ground line is provided at four edges of the upper surface or the lower surface of the zebra strip.

[Claim 21] The POS machine using the new security patch board according to claim 18, wherein the start end and the end end of the signal line on the zebra strip are sequentially arranged side by side.

[Claim 22] The POS machine using the novel security patch board according to claim 21, wherein one signal line of the zebra strip is surrounded by another signal line located outside thereof and adjacent thereto.

[Claim 23] The POS machine using the new security patch board according to claim 21 or 22, wherein the starting end and the terminating end of each of the zebra strips are in a zig-zag manner from the outer ring to the inner ring in parallel. Surround distribution.