Fabrication and electron transport in vertical silicon-silicon nitride-silicon multilayer nano-pillars

Autor: Yue-Min Wan, Hsien-Hsun Yang, Chin-Lung Sung, Shu Fen Hu, Heng-Tien Lin
Rok vydání: 2005
Předmět:
Zdroj: 5th IEEE Conference on Nanotechnology, 2005..
DOI: 10.1109/nano.2005.1500825
Popis: We have designed vertical single-electron transistors that consist of a vertical stack of coupled asymmetric quantum wells in a poly-silicon/silicon nitride multilayer nano-pillars configuration with each well having a unique size. A part of surrounding gate arranges source, gate and drain vertically. The gate electrode surrounds half side of a silicon pillar island, and the channel region exists at all the pillar silicon island. The part surrounding gate transistor has a large effective channel width because the pillar silicon island is so small ( < 10 nm) that can be used as a current channel region. Coulomb gap, Coulomb staircases and periodic current oscillation are observed at 300 K. Accordingly, the vertical transistor offers high-shrinkage feature. By using the occupied area of the ULSI can be shrunk to 10% of that using conventional planar transistor. The small-occupied area leads to the small capacitance and the small load resistance, resulting in high speed and low power operation.
Databáze: OpenAIRE