Binary decision diagram logic integrated circuit subsystems based on control of compound semiconductor nanowire networks

摘要

To realize ultra-high density and ultra-low power consumption quantum nanodevice logic integrated circuits, implementation of logic subsystems by a hexagonal quantum BDD logic circuit approach using compound semiconductor-based nanowire networks is investigated. BDD subsystems including adders and comparators are designed based on planar hexagonal layout without nanowire crossovers. Circuit fabrication process realizing 4.5×10{sup}7 devices/cm{sup}2 is developed. QWR-based BDD 2-bit and 4-bit adders are successfully fabricated and correct operation of the 2-bit adder is confirmed in a classical transport regime at room temperature. Design of register circuits utilizing WPG nanodevices is also discussed.