Abstract
A polycrystalline-silicon (poly-Si) dual-gate MOSFET-based one-transistor dynamic random-access memory (1T-DRAM) cell was developed using grain boundary (GB)-induced barrier effects. The program/erase operation of the 1T-DRAM is performed by trapping/detrapping charges in GB traps. The trapped charges cause variations in the grain energy barrier of the storage region, which forms the sensing margin of the 1T-DRAM. The proposed cell achieved a high sensing margin of 4.45 μA/μm and a long retention time (>100 ms) at a high temperature of 373 K (100 °C).
| Original language | English |
|---|---|
| Article number | 183503 |
| Journal | Applied Physics Letters |
| Volume | 114 |
| Issue number | 18 |
| DOIs | |
| State | Published - 6 May 2019 |