A 16-Bit Parallel Prefix Carry Look-Ahead Kogge-Stone Adder Implemented in Adiabatic Quantum-Flux-Parametron Logic

Extremely energy-efficient logic devices are required for future low-power high-performance computing systems. Superconductor electronic technology has a number of families. Among them is the adiabatic quantum-flux-parametron (AQFP) family, which adiabatically switches (QFP) circuit when it excited by an AC power-clock. When compared to state-of-the-art CMOS technology, AQFP circuits have advantage relatively fast clock rates (5 GHz 10 GHz) and 5 - 6 orders magnitude reduction in energy before cooling overhead. We been developing extremely processor components using AQFP. The adder most basic computational unit important development processor. In this work, we designed measured 16-bit parallel prefix carry look-ahead Kogge-Stone (KSA). fabricated AIST kA/cm2 High-speed STandard Process (HSTP). Due malfunction measurement system, were not able confirm complete operation at low frequency 100 kHz liquid He, but confirmed that outputs did observe correct two types tests: (1) critical tests (2) 110 random input total. margin wide, any calculation errors during measurement.