RU2640725C1 - Method of destructing confidential information stored in memory chips of memory of electronic devices - Google Patents

Abstract

FIELD: physics.SUBSTANCE: method of destructing confidential information stored in memory chips in electronic devices, in which a mechanical punch is used, by with which the mechanical destruction of not less than one memory chip is carries out, which is installed on a printed circuit board with a through-hole inside the electronic device. The external mechanical punch is used for the impact, which is installed in the seat made on the outer surface of the body. The axis of the seat is aligned with the axis of the center of the memory chip and the center of the hole of the printed circuit board, and the mechanical impact on the crystals of the memory chip is carried out through the wall of the device body.EFFECT: destruction of confidential information stored in memory chips of electronic devices in order to protect it from unauthorized access.3 dwg

Description

The invention relates to a method for destroying data on electronic information carriers (memory chips) when they are in electronic devices in order to protect confidential information from unauthorized access at all stages of the life cycle of electronic devices, as well as in emergency situations.

In modern electronic devices, information is stored in memory microcircuits, microcontrollers, etc., which are located inside electronic devices on printed circuit boards. Known methods of information destruction, such as electrical (software) erasure or physical destruction of storage media, require a long time, additional equipment, as well as the extraction of memory chips from electronic devices. Electronic devices containing confidential information, as a rule, have a non-separable design or a “power” design that provides resistance to harsh external factors. The above shows that it is rather difficult to carry out emergency destruction of confidential information stored in memory chips of electronic devices.

Known RU patent for utility model No. 150597 dated 08/26/2014 "Information storage device with the possibility of emergency destruction", published on 01/21/2015, which describes a design that implements a method of destroying information, which consists in using a mechanical punch, which is located inside the device above the memory microcircuit and is its integral part, with the help of which mechanical destruction of the memory microcircuit installed on the printed circuit board with a through hole inside the electronic housing is carried out boron. The movement of the mechanical punch inside the housing is carried out by rotating a part of the housing clockwise and converting the rotational motion into translational.

The above method is the closest in technical essence to the claimed method and is therefore selected as a prototype. The disadvantages of this prototype are:

- the restriction of the use of external mechanical stresses due to the presence of elements of mechanics;

- binding of a mechanical punch to a specific electronic device.

The technical task to be solved is the creation of a method for destroying confidential information stored in memory chips of electronic devices in order to protect it from unauthorized access at all stages of the life cycle of electronic devices, as well as in emergency situations.

The technical result achieved is the destruction of confidential information due to the mechanical destruction of the crystal memory chips in which this information is stored during operation, storage and transportation of electronic devices.

To achieve a technical result in a method for destroying confidential information stored in memory chips of electronic devices, which consists in using a mechanical punch, with which mechanical destruction of at least one memory chip is carried out, which is installed on a printed circuit board with a through hole inside the housing of the electronic device , new is that they use an external mechanical punch, which is installed in a seat made on the outer surface case, while the axis of the seat is aligned with the axis of the center of the memory chip and the center of the hole of the printed circuit board, and the mechanical effect on the memory chip is carried out through the wall of the device.

A new set of essential features in the present method provides a guaranteed destruction of the crystal memory chips and the destruction of recorded information and allows you to expand the scope of its application. To perform this action requires a minimum amount of time and devices and does not require additional equipment. Data destruction can be performed anywhere and in any climatic conditions.

A method of destroying confidential information stored in memory chips of electronic devices is presented in the figures. In FIG. 1 shows an embodiment of a method for destroying one memory chip, FIG. 2 shows a variant of the method of destroying two memory chips simultaneously.

In FIG. 1, 2, punch 1 is a “glass” in which a rod with a sharp tip moves. The punch is installed in the seat 6 of a cylindrical shape, made on the outer surface of the housing 2 of the electronic device. Inside the device’s case there is a printed circuit board 4 on which a memory chip 3 is installed (Fig. 1) or two memory chips (Fig. 2). For a more accurate and easy passage of the punch through the material of the printed circuit board, a through hole 5 is made in it.

The method of destruction of confidential information stored in memory chips of electronic devices is implemented as follows. An external mechanical piercer 1 is used, which is installed in a seat 6 made on the outer surface of the housing 2, while the axis of the seat 6 is aligned with the axis of the center of the memory chip 3 and the center of the hole 5 of the printed circuit board 4. Holding the mechanical piercer in the seat along it strike or several blows with a hammer or any heavy object in the direction of the arrow shown in FIG. 3, until the rod of the punch 1 rests against the "glass", which is the criterion of guaranteed destruction of chip crystals. Punch 1 is made of hardened steel. The rod of the punch 1, having broken through the thinning on the wall of the housing 2, destroys the crystals of the microcircuits 3 located on the printed circuit boards 4. The hole 5 in the printed circuit board does not allow the rod of the punch to deviate from the centers of the crystals of the microcircuits. Thus, there is a quick and guaranteed destruction of the crystals of the memory microcircuits and the data contained in them without disassembling the device body and removing the microcircuits. The inventive method of data destruction in memory microcircuits as part of electronic devices is confirmed by tests.

Claims (1)

A method of destroying confidential information stored in memory chips of electronic devices, which consists in using a mechanical punch, with which mechanical destruction of at least one memory chip is carried out, which is installed on a printed circuit board with a through hole inside the housing of the electronic device, characterized in that using an external mechanical punch for impact, which is installed in a seat made on the outer surface of the housing, while the axis of the seat is aligned with the axis of the center of the memory chip and the center of the hole of the printed circuit board, and the mechanical impact on the crystals of the memory chips is carried out through the wall of the device.

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