Method and apparatus for highly effective on-chip true random number generator utilizing beta decay
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United States of America Patent
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Feb 15, 2022
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app pub date -
Aug 24, 2021
filing date -
Aug 24, 2021
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Abstract
A true random number generator (TRNG) is disclosed, comprising an enclosure enclosing, a radiation source (preferably radioactive nickel), and a cavity separating the radioactive nickel from a linear array of cells. The cells include a silicon substrate with a detector constructed to detect electrons within the cavity from the decay of the nickel and to produce a signal for the detected energy. The amplifier connected to the detector amplifies the signal and passes it to the memory for storage. A control block is connected to each cell in the linear array (a) sends a word line signal to each cell, causing the memory to report its contents to an output buffer/memory via a bit line, and also (b) sends a reset signal to each cell, causing the memory to erase.
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