JPS6031640A - Random number generator - Google Patents

Abstract

PURPOSE:To simplify the generation of random numbers by coating the surface of a chip with a radioactive substance and accelerating the incidence of particles to a memory cell. CONSTITUTION:Bit patterns on a dynamic MOSRAM integrated circuit chip 1 are irregularly arrayed by alpha particles irradiated by radioactive substance americium 2 coated on the chip 1. The random number can be obtained by reading out a bit pattern generating bit inversion by the incidence of alpha particles stored in the integrated circuit chip 1 through a drawing line 4.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical field to which the invention pertains] The present invention relates to a random number generator, and more particularly to a random number generator using a semiconductor integrated circuit for generating random numbers used in information processing devices and the like.

[Prior art]

Conventional random number generators use pseudo-random numbers, which are generated by an arithmetic operation such as a congruence method, to generate random numbers for use in an information processing device or the like.

Therefore, in order to obtain random numbers, arithmetic operations must be performed, and since the generated random numbers are pseudo-random numbers, the validity of the random numbers must be considered for the purpose of use. Ta.

In addition, other conventional random number generators are known to obtain random numbers by sampling thermal noise generated by vacuum tubes, etc., but since they are analog systems, conversion to digital systems is required, and the equipment The disadvantage was that it became large.

That is, the conventional random number generator uses a large amount of 71-ware to generate random numbers, and has the disadvantage that it is not easy to generate random numbers.

[Purpose of the invention]

An object of the present invention is to provide a random number generator that can easily generate random numbers.

That is, an object of the present invention is to provide a random number generation device incorporating a semiconductor device that generates random numbers instead of generating random numbers by internal operations.

[Structure of the invention]

The random number generator of the present invention includes a dynamic MO8R, AM integrated circuit chip that stores a read bit pattern and inverts any bit of the written bit pattern by the incidence of α particles, and the dynamic MO8RAM. and a radioactive substance that is coated on the integrated circuit and generates the α particles.

That is, the random number generator of the present invention has a dynamic M.O.
Dynamic MO8 with 8RAM memory cell capacity that can easily capture the charge generated by α particle incidence.
It is composed of an IllAM integrated circuit and a radioactive material coated on the chip.

[Principle and operation of the invention]

The random number generator of the present invention is a dynamic MO8ftAM
Taking advantage of the fact that bit inversion occurs due to the incidence of alpha particles when the memory cell capacity is reduced, the bits on one memory cell are It is based on the principle that since the pattern arrangement becomes a random arrangement according to the Boarnon distribution, random numbers can be obtained by reading out this state.

[Explanation of Examples]

Next, five embodiments of the present invention will be described in detail with reference to the drawings.

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The random number generator shown in FIGS. 1 and 2 includes a dynamic MO8RAM integrated circuit TEP1, Ameridium 2, which is one of the radioactive substances coated on it, a package 3, and a leader line 4. There is.

By connecting this random number generator in the same way as connecting a normal dynamic MOB AM to an information processing device, the bit pattern of the dynamic MO8I'LAM integrated circuit chip 1 is changed by the alpha particles irradiated by the Ameridium 2. A random number can be obtained by reading a bit pattern which is irregularly arranged and stored in the dynamic MO8RAM integrated circuit chip l through the leader line 4, and in which bit inversion occurs due to the incidence of α particles.

[Brief explanation of the drawing]

FIG. 1 is a perspective view showing one embodiment of the present invention, and FIG. 2 is a perspective view showing one embodiment of the present invention.
FIG. 3 is a central sectional view of the embodiment shown in the figure. 1...Dynamic MO8RAM integrated circuit chip, 2...Ameridium, 3...Package, 4...Leader line. Graduation 1 Drunkenness 2 Companions

Claims (1)

[Claims] The read bit pattern is stored and recorded in B8.
a dynamic MOS LLAM integrated circuit chip in which any bit of the bit pattern is reversed by the incidence of α particles; and a radioactive substance coated on the dynamic MUSRAM integrated circuit to generate the α particles. Random number generator.