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A New Functional MOS Transistor Featuring Neuron Functions

Research Project

Project/Area Number 02402032
Research Category

Grant-in-Aid for General Scientific Research (A)

Allocation TypeSingle-year Grants
Research Field 電子材料工学
Research InstitutionTohoku University Grant-in-Aid for Scientic Research

Principal Investigator

SHIBATA Tadashi  Associate Professor, Dept. Electronic Engineering Tohoku University, 工学部, 助教授 (00187402)

Co-Investigator(Kenkyū-buntansha) MORITA Mizuho  Associate Professor, Dept. Electronic Engineering Tohoku University, 工学部, 助教授 (50157905)
OHMI Tadahiro  Professor, Dept. Electronic Engineering Tohoku University, 工学部, 教授 (20016463)
Project Period (FY) 1990 – 1991
Project Status Completed (Fiscal Year 1991)
Budget Amount *help
¥13,500,000 (Direct Cost: ¥13,500,000)
Fiscal Year 1991: ¥5,000,000 (Direct Cost: ¥5,000,000)
Fiscal Year 1990: ¥8,500,000 (Direct Cost: ¥8,500,000)
KeywordsNeural Network / Neuron / Neuron MOS Transistor / Binary Logic Circuits / Soft Hard ware Logic / A / D converter / Floating gate / Full adder / 可変閾値トランジスタ / MOSFET / 可変閾値素子 / D / Aコンバ-タ / ニュ-ラルネットワ-ク
Research Abstract

A new functional MOS transistor has been developed which works more intelligently than a mere switching device. The functional transistor calculates weighted sum of all input signals at the gate level, and controls the "on" and "off" of the transistor based on the result of such a weighted sum operation. Since the function is quite analogous to that of biological neurons, the device is named a neuron MOSFET or neuMOS (nuMOS) in short. The device is composed of a floating gate and plural of input gates that are capacitively interacting with the floating gate. As the gate-level sum operation is perfomied in a voltage mode utilizing the capacitive coupling effect, essentially no power dissipation occurs in the calculation, making the device ideal for ULSI implementation. The basic characteristics of neuron MOSFET's as well as of simple circuit blocks are analyzed based on a simple transistor model and experiments. Making use of its very powerful function, a number of interesting circuit a … More pplications have been explored. neuMOS inverters and neuron circuits, variable threshold transistors and inverters, linear resistors, and neuMOS source follower circuits and single gate D/A converters are described. The concept of a Soft Hardware Logic Circuit implemented by neuMOS transistors has been also developed. The circuit exhibits a very interesting feature that the logical function of the circuit is arbitrarily altered by external signals without any changes in the hardware configuration. When fixed function logic circuits are implemented by nuMOS transistors, the number of transistors as well as of interconnections can be dramatically reduced as compared to their conventional CMOS-design counterparts. 4-bit flash A/D converter, for instance, can be constructed by only 28 transistors although 398 transistors are required in conventional design. Basic operations of these circuits have been experinientally verified by fabricating test circuits using double polysilicon CMOS process. Less

Report

(3 results)
  • 1991 Annual Research Report   Final Research Report Summary
  • 1990 Annual Research Report
  • Research Products

    (17 results)

All Other

All Publications (17 results)

  • [Publications] T,Shibata: "An Intelligent MOS Transistor Featuring Gate-Level Weighted Sum and Threshold Operations" Technical Digest,International Electron Devicas Meeting 1991,Washington D.C.919-922 (1991)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] 柴田 直: "新概念のMOSトランジスタ,単体でニュ-ロン機能など実現" 日経マイクロデバイス1992年1月号. No.79. 101-109 (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Shibata: "A Functional MOS Transistor Featuring Gate-Level Weighted Sum and Threshold Operations" IEEE Trans.Electron Devices(Jun Issue). Vol.39. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Shibata: "ASelf-Learning Neural Network LSI using Neuron MOSFET's" Digest of Technical Papers,1992Symposium on VLSI Technology,Seatle,Jwne. (1992)

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T,Shibata: "Implementing Binary Logic Circuits Using Newron MOS Transistors" IEEE Trans.Electron Devices.

    • Description
      「研究成果報告書概要(和文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Shibata and T. Ohmi: "An intelligent MOS transistor featuring gate-level weighted-sum and threshold operations" Technical Digest, International Electron Devices Meeting 1991, Washington D. C.919-922 (1991)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Shibata and T. Ohmi: "A new-concept transistor realizing neuron functions by a single device" Nikkei Microdevices. 79. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Shibata and T. Ohmi: "A functional MOS transistor featuring gate-level weighted-sum and threshold operations" IEEE Transactions on Electron Devices. 39, No. 6. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Shibata and T. Ohmi: "A self-learning neural network LSI using neuron MOSFET's" Digest of Technical Papers, 1992 VLSI Technology Symposium, Seattle. (1992)

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T. Shibata and T. Ohmi: "Implementing binary-logic circuits using neuron MOS transistors" IEEE Transactions on Electron Devices.

    • Description
      「研究成果報告書概要(欧文)」より
    • Related Report
      1991 Final Research Report Summary
  • [Publications] T.Shibata: "An Intelligent MOS Transistor Featuring GateーLevel Weighted Sum and Threshold Operations" Technical Digest,International Electron Devices Meeting 1991,Washington D.C. 919-922 (1991)

    • Related Report
      1991 Annual Research Report
  • [Publications] 柴田 直: "新概念のMOSトランジスタ,単体でニュ-ロン機能など実現" 日経マイクロデバイス1992年1月号. No.79. 101-109 (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Shibata: "A Functional MOS Transistor Featuring GateーLevel Weighted Sum and Threshold Operations" IEEE Trans.Electron Devices(June Issue). Vol.39. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Shibata: "ASelfーLearning Neural Network LSI using Neuron MOSFET'S" Digest of Technical Papers,1992 Symposium on VLSI Technology,Seatle,June. (1992)

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Shibata: "Implementing Binary Logic Circuits Using Neuron MOS Transistors" IEEE Trans.Electron Devices.

    • Related Report
      1991 Annual Research Report
  • [Publications] T.Shibata: "A Neuron MOSFETーSingle MOS Device Realizing Neuron Functions" IEEE Trans.Electron Devices.

    • Related Report
      1990 Annual Research Report
  • [Publications] T.Shibata: "A New Logic Circuit Design Using Neuron MOSFET'S" IEEE SolidーState Circuits.

    • Related Report
      1990 Annual Research Report

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Published: 1990-04-01   Modified: 2016-04-21  

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