A Compact Capacitor-Less High-Speed DRAM Using Field Effect-Controlled Charge Regeneration

We demonstrate experimentally a capacitor-less one-transistor dynamic random access memory (DRAM) based on fully depleted silicon-on-insulator substrate. In our device, the charges are directly stored in front gate capacitor (
C
_G
) and read out through a fast feedback regeneration process. The simulated read/write times of our device reach below 1 ns, much faster than conventional 1T-1C DRAM. The read/write biasing voltages can be scaled down to 1.1 V, achieving long retention time (t
_re
>; 5s).