MANA: A Monolithic Adiabatic iNtegration Architecture Microprocessor using 1.4zJ/op Superconductor Josephson Junction Devices
MANA: A Monolithic Adiabatic iNtegration Architecture Microprocessor using 1.4zJ/op Superconductor Josephson Junction Devices
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MANA：使用 1.4zJ/op 超导约瑟夫森结器件的单片绝热集成架构微处理器
DOI：
10.1109/vlsicircuits18222.2020.9162792
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发表时间：
2020
期刊：
影响因子：
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通讯作者：
Yoshikawa Nobuyuki
中科院分区：
文献类型：
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作者：
Ayala Christopher L.;Tanaka Tomoyuki;Saito Ro;Nozoe Mai;Takeuchi Naoki;Yoshikawa Nobuyuki
我们提出了一种基于约瑟夫森结（JJ）器件的绝热微处理器，该器件采用Nb/AlOx/Nb超导集成电路制造工艺制造。它是RISC和数据流架构的混合体，运行在4b数据字上。我们演示了在4.2K的低温下，在100kHz下进行寄存器文件的读写访问、ALU执行和程序分支。我们还成功地演示了一个高速芯片的微处理器执行单元高达2.5GHz。我们使用一种称为绝热量子通量参数管（AQFP）的逻辑原语，当由4.2K的4相5GHz ac时钟驱动时，其开关能量为1.4zJ。
We present an adiabatic microprocessor based on Josephson junction (JJ) devices manufactured using a Nb/AlOx/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.