Title
MANA: A Monolithic Adiabatic iNtegration Architecture Microprocessor using 1.4zJ/op Superconductor Josephson Junction Devices
Abstract
We present an adiabatic microprocessor based on Josephson junction (JJ) devices manufactured using a Nb/AlO <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">x</sub> /Nb superconductor IC fabrication process. It is a hybrid of RISC and dataflow architectures operating on 4b data words. We demonstrate register file R/W access, ALU execution, and program branching performed at 100kHz under the cryogenic temperature of 4.2K. We also successfully demonstrated a high-speed chip of the microprocessor execution units up to 2.5GHz. We use a logic primitive called the adiabatic quantum-flux-parametron (AQFP) which has a switching energy of 1.4zJ when driven by a 4-phase 5GHz ac-clock at 4.2K.
Year
DOI
Venue
2020
10.1109/VLSICircuits18222.2020.9162792
2020 IEEE Symposium on VLSI Circuits
Keywords
DocType
ISSN
microprocessor execution units,adiabatic quantum-flux-parametron,dataflow architectures,ALU execution,4-phase ac-clock,MANA,superconductor Josephson junction devices,monolithic adiabatic integration architecture microprocessor,superconductor IC fabrication process,RISC architectures,high-speed chip,logic primitive,register file R/W access,temperature 4.2 K,bandwidth 5.0 GHz,frequency 100.0 kHz,storage capacity 4 bit,Nb-AlOx-Nb
Conference
2158-5601
ISBN
Citations 
PageRank 
978-1-7281-9943-6
0
0.34
References 
Authors
1
6
Name
Order
Citations
PageRank
Christopher Lawrence Ayala142.17
Tomoyuki Tanaka200.34
Ro Saito300.34
Mai Nozoe400.34
Naoki Takeuchi522.83
Nobuyuki Yoshikawa63215.46