| 摘要 |
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. |
