Heterosynaptic Plasticity and Neuromorphic Boolean Logic Enabled by Ferroelectric Polarization Modulated Schottky Diodes

Advanced Electronic Materials, vol. 9

Abstract

Abstract Neuromorphic computing employs a great number of artificial synapses which transfer information between neurons. Conventional two‐ or three‐terminal artificial synapses with homosynaptic plasticity suffer from a positive feedback loop problem. Synapses with heterosynaptic plasticity are thus required to perform learning, processing and modulating simultaneously. Here, complementary metal‐oxide‐semiconductor compatible artificial synapses based on ferroelectric polarization modulated Schottky diodes (FEMOD) on silicon, which enables heterosynaptic plasticity with multi‐functionalities, high endurance, low power consumption, and high speed, are presented. High accuracy is obtained in the supervised learning simulation of artificial neural networks due to the large number of conductance states, good linearity, and small variations of FEMOD synapses. Boolean functions are demonstrated with only one or two FEMOD devices operating at low voltage and low power consumption. The proposed device structure performs multi‐functions of biological synapse and Boolean logic, thus provides high potential for the future large scale and low power neuromorphic computing applications.

Authors 7

1. Fengben Xi Aachen Faculty of Mathematics, Computer Science and Natural Sciences

   Forschungszentrum Jülich · Jülich Aachen Research Alliance · RWTH Aachen University

   Affiliation as printed

   Faculty of Mathematics, Computer Science and Natural Sciences RWTH Aachen University 52074 Aachen Germany

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

2. Andreas Grenmyr Aachen Faculty of Electrical Engineering and Information Technology

   Forschungszentrum Jülich · Jülich Aachen Research Alliance · RWTH Aachen University

   Affiliation as printed

   Faculty of Electrical Engineering and Information Technology RWTH Aachen University 52074 Aachen Germany

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

3. Jiayuan Zhang Aachen Faculty of Electrical Engineering and Information Technology

   Forschungszentrum Jülich · Jülich Aachen Research Alliance · RWTH Aachen University

   Affiliation as printed

   Faculty of Electrical Engineering and Information Technology RWTH Aachen University 52074 Aachen Germany

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

4. Yi Han Aachen Faculty of Mathematics, Computer Science and Natural Sciences

   Forschungszentrum Jülich · Jülich Aachen Research Alliance · RWTH Aachen University

   Affiliation as printed

   Faculty of Mathematics, Computer Science and Natural Sciences RWTH Aachen University 52074 Aachen Germany

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

5. Jin Hee Bae

   Forschungszentrum Jülich · Jülich Aachen Research Alliance

   Affiliation as printed

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

6. Detlev Grützmacher Aachen Faculty of Mathematics, Computer Science and Natural Sciences

   Forschungszentrum Jülich · Jülich Aachen Research Alliance · RWTH Aachen University

   Affiliation as printed

   Faculty of Mathematics, Computer Science and Natural Sciences RWTH Aachen University 52074 Aachen Germany

   Peter Grünberg Institute (PGI 10) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany

7. Qing‐Tai Zhao corresponding

   Forschungszentrum Jülich · Jülich Aachen Research Alliance

   Affiliation as printed

   Peter Grünberg Institute (PGI 9) and JARA‐Fundamentals of Future Information Technologies Forschungszentrum Jülich GmbH 52428 Jülich Germany