Title :
Experimental study of a dual-input-multiplexor gate
Author :
Hosoya, Mutsumi ; Hioe, Willy ; Goto, Eiichi ; Kamikawai, Ryotaro ; Wada, Yasuo ; Miyamoto, Nobuo ; Nakane, Hideaki
Author_Institution :
Research Dev. Corp. of Japan, Tokyo, Japan
fDate :
3/1/1991 12:00:00 AM
Abstract :
In order to solve the problems of old QFP (quantum flux parametron) logic and to improve the operating margin, a QFP logic uses various circuits including a flux regulator, activation/signal amplifiers, a variable activated QFP (VAQ), and a dual-input-multiplexer gate (D-gate). The detailed designs and experimental results of these circuits are discussed. New QFP logic adopts a novel QFP, which can transfer I/O signals between two stacked chips directly by its I/O transformer. The prototype model of three-dimensional circuits by this kind of QFP is described
Keywords :
superconducting logic circuits; D-gate; I/O transformer; QFP logic; VAQ; activation/signal amplifiers; dual-input-multiplexer gate; dual-input-multiplexor gate; experimental results; experimental study; flux regulator; operating margin; prototype; quantum flux parametron; superconducting logic circuits; three-dimensional circuits; transfer I/O signals; variable activated QFP; Circuit testing; Coupling circuits; Critical current; Electronics packaging; Inductance; Josephson junctions; Logic circuits; Power dissipation; Prototypes; Regulators;
Journal_Title :
Magnetics, IEEE Transactions on
