Device for rapidly and effectively destroying information storage chip through thermit reaction

Abstract

The invention relates to a device for rapidly and effectively destroying an information storage chip through thermit reaction, and belongs to the field of information security. The device comprises a metal shell, a heat insulation layer, a thermite, an ignition agent, an electric heating wire, a chip package, a chip die core and the like. A trigger control unit, a safety unit, an ignition unit, an aluminothermic reaction unit and the like are additionally arranged above a traditional information storage chip, and a die (grain) core of the information storage chip is melted by using high-temperature liquid metal generated by aluminothermic reaction. On the premise of ensuring the safety of operators, the physical structure of the information storage chip is quickly and effectively destroyed, and the purpose of physically destroying the die (crystal grain) core of the information storage chip is achieved.

Description

TECHNICAL FIELD

[0001] The present application belongs to the field of information security, and particularly relates to a device for rapidly and effectively destroying information storage chips through aluminothermic reaction. BACKGROUND

[0002] In some information devices with high information security requirements and serious consequences of information leakage, sensitive information storage chips in the information devices need to be rapidly and reliably destroyed.

[0003] In traditional information devices, the destruction is mainly performed through logical erasing. The advantages are: (1) simple operation. Only a simple erasing instruction or forced execution of write-all-0 or write-all-1 operation needs to be sent to the information storage chip; (2) low cost. No additional equipment is needed, and only a simple operation password is needed to realize the erasing of sensitive information.

[0004] The main disadvantages are: (1) long destruction time. The destruction time is usually related to the amount of data to be destroyed, the working frequency and performance of the storage device. For most flash devices, the usual destruction rate is about 2Mbit / s. (2) Continuous and stable power supply is needed during the destruction process. If the device is powered off during the destruction process, the destruction operation usually cannot be completed. (3) Incomplete destruction, with security risks. Considering the destruction time and other factors, in the actual destruction process, only the sensitive data considered by the technical personnel is usually destroyed on the software level, and there may be problems such as incomplete destruction of data, and it is impossible to destroy the physical structure of the chip. There is a possibility of being cracked.

[0005] In view of the above problems, the present application provides a physical destruction device for information storage chips. SUMMARY

[0006] (I) Technical problem to be solved

[0007] The technical problem to be solved by the present application is how to provide a device for rapidly and effectively destroying information storage chips through aluminothermic reaction, so as to solve the problems of long destruction time, continuous and stable power supply during the destruction process, and incomplete destruction of the existing destruction method.

[0008] (II) Technical solution

[0009] In order to solve the above technical problems, the present application provides a device for rapidly and effectively destroying information storage chips through aluminothermic reaction, which comprises, from the outside to the inside: a metal shell, a heat insulation layer, an aluminothermic agent, an ignition agent, an electric heating wire, a chip package and a chip die core.

[0010] The shell is made of metal with high hardness and toughness, and is used for ensuring the structural strength;

[0011] Thermal insulation layer, located inside the shell, is used for thermal insulation, so that the heat generated by the aluminothermic reaction can be concentrated on the die core, achieving better destruction effect;

[0012] Aluminothermic agent, located inside the thermal insulation layer, is the heat source in the destruction process, and plays a role in generating heat;

[0013] Ignition agent, located inside the aluminothermic agent, is used to start the aluminothermic reaction;

[0014] Electric heating wire, used to connect the ignition agent and the chip die core, and trigger the ignition agent by heating;

[0015] Chip package, located below the aluminothermic agent;

[0016] Chip die core, located inside the chip package, a trigger control unit is arranged in the chip die core, the trigger control unit is used to identify the destruction signal and the insurance state, and drive the electric heating wire to heat.

[0017] (Three) beneficial effects

[0018] The present application provides a device for quickly and effectively destroying information storage chips through aluminothermic reaction, the present application adds trigger control unit, insurance unit, ignition unit and aluminothermic reaction unit etc. above the traditional information storage chip, and uses the high temperature liquid metal generated by aluminothermic reaction to melt the information storage chip die core. The present application prevents misoperation by cooperating with multi-level insurance and trigger signal. The present application realizes directional release of liquid iron generated by aluminothermic reaction, quickly and accurately destroys the chip die structure, by cooperating with thermal insulation layer, aluminothermic layer, ignition agent, electric heating wire and trigger control unit. The present application can quickly and effectively destroy the physical structure of information storage chip under the premise of ensuring the safety of operators, and realizes the purpose of physically destroying the information storage chip die core. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 The hardware architecture of the present application is shown in the figure;

[0020] Figure 2 The effect diagram of the present application is shown in the figure;

[0021] Figure 3 The operation and reaction process of the present application is shown in the figure. DETAILED DESCRIPTION

[0022] In order to make the purpose, content and advantages of the present application more clear, the specific embodiments of the present application are described in detail below in combination with the drawings and examples.

[0023] The present application adds an aluminothermic agent assembly on a conventional information storage chip, and high-temperature liquid metal generated by aluminothermic reaction melts the core of the information storage chip die, so as to destroy the physical structure of the chip and achieve the purpose of physical destruction.

[0024] The present application provides a device for quickly and effectively destroying an information storage chip through aluminothermic reaction, which comprises, from the outside to the inside, a metal shell, a thermal insulation layer, an aluminothermic agent, an ignition agent, an electric heating wire, a chip package, a chip die core, and a trigger control unit arranged in the chip die core.

[0025] (1) The shell is made of metal with high hardness and toughness, and is used to ensure the structural strength;

[0026] (2) The thermal insulation layer is arranged inside the shell, and is mainly used for heat insulation, so that the heat generated by the aluminothermic reaction is concentrated on the die core, thereby achieving a better destruction effect; the thermal insulation layer can be a stone wool thermal insulation layer;

[0027] (3) The aluminothermic agent is arranged inside the stone wool thermal insulation layer, and is the main heat source in the destruction process, and plays a role in generating heat;

[0028] (4) The ignition agent is arranged inside the aluminothermic agent, and is used to start the aluminothermic reaction;

[0029] (5) The electric heating wire is used to connect the ignition agent and the chip die core, and triggers the ignition agent by heating;

[0030] (6) The chip package is arranged below the aluminothermic agent;

[0031] (7) The chip die core is arranged in the chip package, and the trigger control unit is arranged in the chip die core, and the trigger control unit is used to identify the destruction signal and the insurance state, and drive the electric heating wire to heat.

[0032] After the device is powered on, the software monitors the destruction insurance state. If the insurance is in the open state, the destruction signal is monitored, otherwise it is not monitored. When an external event (the external event is device loss or loss of control, etc., and the device is self-destroyed as much as possible before being lost, or self-destroyed in the case of multiple password input errors after being lost) causes the destruction signal to trigger, the destruction program is started. First, the trigger control unit generates an electric current to drive the electric heating wire to heat, the heat generated by the electric heating wire triggers the ignition agent reaction, the heat generated by the ignition agent reaction triggers the aluminothermic reaction, and the aluminothermic reaction generates high-temperature liquid metal. Since the aluminothermic agent is wrapped with a thermal insulation protective layer composed of a stone wool thermal insulation layer and a metal shell, the heat is released in one direction, i.e., the direction of the chip die core. With the combined action of reaction pressure and gravity, the heat generated by the aluminothermic reaction is concentrated on the chip die core, causing the chip die core to melt and the physical structure of the chip to be destroyed. The destruction effect is shown in Figure 2The chip die core is located in the chip package, the chip package is thin, and the chip package and the chip die core are almost melted at the same time.

[0033] Embodiment 1

[0034] (1) Structural composition. The structural composition is as shown in the figure Figure 1 From the outside to the inside, it is composed of a high-strength metal shell, an asbestos heat insulation layer, a thermite, an ignition agent, an electric heating wire, a chip package, a trigger control unit and the like.

[0035] Among them:

[0036] (11) The shell is made of metal with high hardness and melting point, which plays a role in ensuring the structural strength;

[0037] (12) The asbestos heat insulation layer mainly plays a heat insulation role. The heat generated by the aluminum thermal reaction is concentrated on the die core, so as to achieve better destruction effect;

[0038] (13) The thermite is the main source of heat in the destruction process, which plays a role in gentle heat release;

[0039] (14) The ignition agent is used to start the aluminum thermal reaction;

[0040] (15) The electric heating wire is used to trigger the ignition agent;

[0041] (16) The trigger control unit is used to identify the destruction signal and the insurance state, and drive the electric heating wire to heat. The current driving the electric heating wire comes from the chip, and the heating of the electric heating wire is not directly triggered by the aluminum thermal reaction, but indirectly triggered by the trigger agent, so it does not need too much current.

[0042] (2) Trigger logic. In actual operation, the insurance signal and the destruction trigger signal are monitored in real time by the chip internal trigger control unit. When the insurance state is in the working state and the agreed destruction signal is identified, the electric heating wire is provided with sufficient driving current through the corresponding driving circuit for triggering the ignition agent. Since physical destruction is an irreversible process, multiple different types of insurance signals can be introduced in the specific implementation process to prevent misoperation. Only when all destruction insurances are in the off state can the destruction signal input trigger the subsequent driving circuit. The so-called insurance signal is a software signal used to prevent misoperation.

[0043] (3) Ignition. The temperature of the electric heating wire is usually around 500°C, and it is easy to be fused when it exceeds 1000°C, which is not enough to trigger the aluminum thermal reaction (1200°C). Therefore, a small amount of ignition agent, i.e. a mixture of magnesium powder and potassium chlorate, is needed between the thermite and the electric heating wire. The potassium chlorate and magnesium powder are uniformly mixed in a mass ratio of 145:244, and the reaction is triggered by heating the electric heating wire to generate high heat for triggering the aluminum thermal reaction (the purpose is to generate heat to trigger the aluminum thermal reaction, and not to explode).

[0044] (4)Aluminothermic reaction. The material of the aluminothermic agent is a mixture of ferric oxide powder and aluminum powder. When the destruction operation is started, the reaction heat of the igniter is triggered by heating the electric heating wire, and then the aluminothermic reaction between the ferric oxide and the aluminum powder is started. The aluminothermic reaction generates high-temperature liquid iron instantaneously, which melts the chip die and causes irreversible damage to the chip die. The asbestos heat insulation layer is used to concentrate heat on the chip to be destroyed and prevent high-temperature molten material from splashing, reducing the risk of accidental injury to the operator.

[0045] (5) Process. All materials are compacted to expel air and maintain airtight dryness, otherwise it is easy to explode during the reaction process, affecting the destruction effect.

[0046] Example 2:

[0047] A device for quickly and effectively destroying information storage chips by aluminothermic reaction, characterized by comprising the following methods and steps:

[0048] (1) Structure. From the outside to the inside, it is composed of a high-strength metal shell, an asbestos heat insulation layer, an aluminothermic agent, an igniter, an electric heating wire, a chip package, a trigger control unit, etc.

[0049] (2) Trigger logic. The chip internal control unit monitors the insurance signal and destruction trigger signal in real time. When the insurance state is in the working state and the agreed destruction signal is recognized, the electric heating wire is provided with sufficient driving current through the corresponding driving circuit to trigger the igniter.

[0050] (3) Ignition. The igniter is a mixture of potassium chlorate and magnesium powder. Its reaction is triggered by heating the electric heating wire to generate high heat for triggering the aluminothermic reaction.

[0051] (4) Aluminothermic reaction. The material of the aluminothermic agent is a mixture of ferric oxide powder and aluminum powder. When the destruction operation is started, the reaction heat of the igniter is triggered by heating the electric heating wire, and then the aluminothermic reaction between the ferric oxide and the aluminum powder is started. The aluminothermic reaction generates high-temperature liquid iron instantaneously, which melts the chip die and causes irreversible damage to the chip die. The asbestos heat insulation layer is used to concentrate heat on the chip to be destroyed and prevent high-temperature molten material from splashing, reducing the risk of accidental injury to the operator.

[0052] (5) Process. All materials are compacted to expel air and maintain airtight dryness, otherwise it is easy to explode during the reaction process, affecting the destruction effect.

[0053] Further, the shell is made of metal with high hardness and melting point, which ensures the structural strength and air isolation; the heat insulation layer is made of asbestos material, which mainly plays a certain heat insulation role, so that the heat generated by the aluminum thermal reaction is concentrated on the die core, achieving better destruction effect; the thermite is the main heat source in the destruction process, which plays a role of mild heat release; the ignition agent is used to start the aluminum thermal reaction; the heating wire is used to trigger the ignition agent reaction; the control unit is used to identify the destruction signal and the insurance state, and drive the heating wire to heat.

[0054] Further, only when all destruction insurance is in the closed state, the input destruction signal can trigger the rear drive circuit.

[0055] Further, the mass ratio of potassium chlorate and magnesium powder is 145:244.

[0056] Further, the volume ratio of the mixture of aluminum thermal reaction material ferric oxide powder and aluminum powder is 3:2.

[0057] Further, the asbestos heat insulation layer is used to concentrate heat on the chip to be destroyed, prevent high-temperature molten material from splashing, and reduce the risk of accidental injury to the operator.

[0058] The present application provides a kind of by aluminum thermal reaction fast and effective destruction information storage chip device, the present application is by in traditional information storage chip top installation trigger control unit, insurance unit, ignition unit and aluminum thermal reaction unit etc., utilize the high temperature liquid metal melting information storage chip die (crystal grain) core generated by aluminum thermal reaction.The present application under the premise of ensuring the safety of operator, quickly, effectively destroys information storage chip physical structure, realizes the purpose of information storage chip die (crystal grain) core physical destruction.

[0059] The above only describes the preferred embodiments of the present application, and it should be noted that for those skilled in the art, without departing from the technical principles of the present application, several improvements and modifications can be made, and these improvements and modifications should be considered as the protection scope of the present application.

Claims

1. A device for rapidly and effectively destroying information storage chips via aluminothermic reaction, characterized in that, The device, from the outside in, includes: a metal casing, a heat insulation layer, a thermite, an igniter, a heating wire, a chip package, and a chip die core; The outer shell is made of a metal with high hardness and toughness to ensure structural strength. The heat insulation layer, located inside the outer shell, is used for heat insulation, so that the heat generated by the thermite reaction is concentrated on the die core, achieving a better destruction effect; Thermite, located inside the insulation layer, is the heat source during the destruction process, playing a role in generating heat; Ignition agent, located inside the thermite, is used to initiate the thermite reaction; The heating wire is used to connect the igniter and the chip die core, and triggers the igniter by heating up; The chip is packaged below the thermite. The chip die core is located inside the chip package. A trigger control unit is set inside the chip die core. The trigger control unit is used to identify the destruction signal and the safety status, and drive the heating wire to heat up.

2. The apparatus for rapidly and effectively destroying information storage chips via aluminothermic reaction as described in claim 1, characterized in that, The trigger control unit monitors the safety signal and the destruction trigger signal in real time. When the safety is in working condition and the agreed destruction signal is detected, it provides sufficient driving current to the heating wire through the corresponding drive circuit to trigger the igniter.

3. The apparatus for rapidly and effectively destroying information storage chips via aluminothermic reaction as described in claim 2, characterized in that, Multiple different types of fuse signals are introduced to prevent accidental activation. The input destruction signal can only trigger the subsequent drive circuit when all destruction fuses are in the closed state.

4. The apparatus for rapidly and effectively destroying information storage chips via aluminothermic reaction as described in claim 1, characterized in that, The igniter is a mixture of magnesium powder and potassium chlorate.

5. The apparatus for rapidly and effectively destroying information storage chips via aluminothermic reaction as described in claim 5, characterized in that, Potassium chlorate and magnesium powder are mixed evenly in a mass ratio of 145:

244. The reaction is triggered by heating with an electric heating wire, which generates high heat to trigger the aluminothermic reaction.

6. The apparatus for rapidly and effectively destroying information storage chips via aluminothermic reaction as described in claim 1, characterized in that, The thermite is made of iron oxide powder and aluminum powder in a volume ratio of 3:

2.

7. The apparatus for rapidly and effectively destroying information storage chips via aluminothermic reaction as described in claim 6, characterized in that, When the destruction operation is initiated, the igniter is triggered by heating the heating wire to react and release heat, which in turn initiates the aluminothermic reaction between iron oxide and aluminum powder. The aluminothermic reaction instantly generates liquid iron with high temperature and fluidity, which corrodes the chip package and further corrodes the chip die core, causing irreversible damage to the chip die core.

8. The apparatus for rapidly and effectively destroying information storage chips via aluminothermic reaction as described in claim 7, characterized in that, The thermite is wrapped in a heat-insulating protective layer consisting of a heat-insulating layer and a metal shell. Its heat can be released in one direction, namely the direction of the chip die core. With the combined action of reaction pressure and gravity, the heat generated by the thermite reaction is concentrated on the chip die core, causing the chip die core to melt and destroy the chip's physical structure.

9. The apparatus for rapidly and effectively destroying information storage chips via aluminothermic reaction as described in claim 8, characterized in that, The insulation layer is an asbestos insulation layer.

10. The apparatus for rapidly and effectively destroying information storage chips via aluminothermic reaction as described in claim 1, characterized in that, All materials should be compacted, air should be expelled as much as possible, and the area should be kept sealed and dry. Otherwise, an explosion may occur during the reaction process, affecting the destruction effect.

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