A Localized Two-Bit/Cell Nanowire SONOS Memory Using Schottky Barrier Source-Side Injected Programming

作者：Chang Wei^*; Shih Chun Hsing; Luo Yan Xiang; Hsia Jui Kai; Wu Wen Fa; Lien Chenhsin

来源：IEEE Transactions on Nanotechnology, 2013, 12(5): 760-765.

DOI：10.1109/TNANO.2013.2273536

• Multibit-cell
• Schottky barrier
• silicon nanowire
• silicon-oxide-nitride-oxide-silicon (SONOS) memory
• source-side injection

A localized two-bit/cell silicon nanowire silicon-oxide-nitride-oxide-silicon memory is experimentally presented for the use in future multibit/cell or NOR Flash applications. Instead of conventional channel-hot-electron programming used in charge-trapping cells, the localized charge storages are performed using the Schottky barrier source-side electron programming. The selection of applying a drain or source voltage determines the injected location of storage bits during cell programming. The locally trapped charges decouple the conduction of electron current from the ambipolar hole current to generate an enlarged sensing The results of reliability and characterization tests confirm the localized storage cells preserve excellent low voltage, operation speed, cycling endurance, and thermal retention as the nonlocalized counterparts.

• 出版日期2013-9
• 单位清华大学; 中国科学院电工研究所