Title :
Cascaded quantum wires and integrated designs for complex logic functions: nanoelectronic full adder
Author :
Lau, B. ; Hartmann, D. ; Worschech, L. ; Forchel, A.
Author_Institution :
Dept. of Phys. & Astron., Univ. Wurzburg, Vancouver, BC, Canada
fDate :
5/1/2006 12:00:00 AM
Abstract :
Complex logic functions based on cascading quantum wires (QWs) defined in a GaAs/AlGaAs-based two-dimensional electron gas by electron-beam lithography and wet chemical etching are demonstrated. The concept of connected QWs leads to a nanoelectronic full adder with independent carry- and sum-bit structures. Monolithic designs were fabricated and were found to also demonstrate simultaneous switching with common thresholds between high and low logic levels.
Keywords :
III-V semiconductors; adders; electron beam lithography; gallium arsenide; integrated logic circuits; nanoelectronics; semiconductor quantum wires; two-dimensional electron gas; 2D electron gas; GaAs-AlGaAs; cascaded quantum wires; complex logic functions; electron-beam lithography; monolithic design; nanoelectronic full adder; wet chemical etching; Chemicals; Electrons; Gallium arsenide; Lithography; Logic devices; Logic functions; Nanoscale devices; Temperature; Wet etching; Wires; Full adder; nanoelectronics; quantum wire (QW); room temperature;
Journal_Title :
Electron Devices, IEEE Transactions on
DOI :
10.1109/TED.2006.871878
