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Characterization and Modeling of Multilevel Analog ReRAM Synapses in the Sky130 Process

Characterization and Modeling of Multilevel Analog ReRAM Synapses in the Sky130 Process 150 150
Author(s): Irem Didin, Carl Brando, Ching-Yi Lin, Sahil Shah

Abstract:

Non-volatile memory devices play a key role in enabling energy-efficient computing. Among them, analog non-volatile memories such as Resistive Random Access Memory (ReRAM) offer high density and low power compared to conventional digital memories. However, their analog nature introduces device-level variability that impacts computational accuracy. This work presents the characterization …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 1 – 1
Year of Publication: 2026
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2026.3670667
Publisher: IEEE

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Coupled Simulation Methodology for In-Memory Computing Systems

Coupled Simulation Methodology for In-Memory Computing Systems 150 150
Author(s): Daniel Schön, Christian Owusu-Afriyie, Quang Huy Nguyen, Rainer Leupers, Stephan Menzel, Melvin Galicia

Abstract:

Simulations for the development and optimization of future in-memory computing (IMC) systems often face the problem that the modeling of the large system is desired, but at the same time, the effects at the device level should also be taken into account. Such effects could be due to the material …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 18 – 26
Year of Publication: 2026
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2026.3652426
Publisher: IEEE

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A 500 MS/s Robust 2b/cycle Pipelined-SAR ADC Achieving 64.6-dB SNDR and 82.6-dB SFDR With Linearity Enhancement Techniques

A 500 MS/s Robust 2b/cycle Pipelined-SAR ADC Achieving 64.6-dB SNDR and 82.6-dB SFDR With Linearity Enhancement Techniques 150 150
Author(s): Qiang Yu, Zheng Zhu, Lulu Zhang, Qin Huang, Yao Feng, Chao Liang, Biao Hu, Ling Du, Rongbin Yang, Shuangyi Wu, Qiang Li

Abstract:

This letter presents a 14-bit 500-MS/s 3-stage pipelined successive approximation register (SAR) analog-to-digital converter (ADC). By exploiting robust 2b/cycle SAR ADCs, this ADC incorporates significant voltage and time redundancy. High SFDR is achieved through several linearity enhancement techniques. First, a DAC splitting technique addresses the common-mode voltage matching …

Published in: IEEE Solid-State Circuits Letters
Page(s): 9 – 12
Year of Publication: 2026
Electronic ISSN: 2573-9603
DOI: 10.1109/LSSC.2025.3639322
Publisher: IEEE

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Integrating Atomistic Insights With Circuit Simulations via Transformer-Driven Symbolic Regression

Integrating Atomistic Insights With Circuit Simulations via Transformer-Driven Symbolic Regression 150 150
Author(s): Md Rahatul Islam Udoy, Jack Hutchins, Shamiul Alam, Catherine Schuman, Ahmedullah Aziz

Abstract:

This article introduces a framework that establishes a cohesive link between the first principles-based simulations and circuit-level analyses using a machine learning-based compact modeling platform. Starting with atomistic simulations, the framework examines the microscopic details of material behavior, forming the foundation for later stages. The generated datasets, with molecular insights, …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 179 – 187
Year of Publication: 2025
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2025.3624662
Publisher: IEEE

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Comprehensive Device to System Co-Design for SOT-MRAM at the 7 nm Node

Comprehensive Device to System Co-Design for SOT-MRAM at the 7 nm Node 150 150
Author(s): Piyush Kumar, Da Eun Shim, Azad Naeemi

Abstract:

This work presents a comprehensive spin-orbit torque (SOT)-based magnetic random access memory (MRAM) design at the 7 nm technology node, spanning from device-level characteristics to system-level power performance area (PPA). At the device level, we show the tradeoffs among the write current, error rate, and time, based on mircomagnetic simulations. …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 139 – 147
Year of Publication: 2025
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2025.3621279
Publisher: IEEE

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Benchmarking of FERAM-Based Memory System by Optimizing Ferroelectric Device Model

Benchmarking of FERAM-Based Memory System by Optimizing Ferroelectric Device Model 150 150
Author(s): Mohammad Adnaan, Saeideh Alinezhad Chamazcoti, Emil Karimov, Marie Garcia Bardon, Francky Catthoor, Jan van Houdt, Azad Naeemi

Abstract:

We present a framework for design technology co-optimization (DTCO) of the main memory system with one transistor-one capacitor (1T1C) ferroelectric random access memory (FERAM) as an alternative to dynamic random access memory (DRAM). We start with the ferroelectric capacitor device model and perform array-level memory circuit simulation. Then, we …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 99 – 106
Year of Publication: 2025
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2025.3618883
Publisher: IEEE

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Reference-Load Sharing Scheme: An Area- and Energy-Efficient Nonvolatile Register Design Using MTJ Devices

Reference-Load Sharing Scheme: An Area- and Energy-Efficient Nonvolatile Register Design Using MTJ Devices 150 150
Author(s): Masanori Natsui, Tomoo Yoshida, Takahiro Hanyu

Abstract:

This article proposes a circuit configuration for an area- and energy-efficient nonvolatile register using magnetic tunnel junction (MTJ) devices, suitable for persistent computation in intermittent computing environments. The proposed configuration, named the reference-load sharing scheme (RLSS), stores 1 bit of information using the resistance of a dedicated MTJ device and a …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 90 – 98
Year of Publication: 2025
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2025.3611365
Publisher: IEEE

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Polar-Axis Orientation Fluctuations and the Impact on the Intrinsic Variability in Ferroelectric Capacitors

Polar-Axis Orientation Fluctuations and the Impact on the Intrinsic Variability in Ferroelectric Capacitors 150 150
Author(s): Wei Zhang, Jianze Wang, Xuanyao Fong

Abstract:

We utilized phase-field simulations to investigate the effects of polar-axis (PA) orientation fluctuations on the extrinsic properties of single ferroelectric (FE) grains, focusing on the coercive electrical field (EC) and the remnant polarization (Pr). The underlying mechanisms through which PA orientation fluctuations influence polarization behavior are studied to gain insights …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 74 – 80
Year of Publication: 2025
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2025.3586589
Publisher: IEEE

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A 430- μ A 68.2-dB-SNR 133-dBSPL-AOP CMOS-MEMS Digital Microphone Based on Electrostatic Force Feedback Control

A 430- μ A 68.2-dB-SNR 133-dBSPL-AOP CMOS-MEMS Digital Microphone Based on Electrostatic Force Feedback Control 150 150
Author(s): Jiaqi Dong, Qi Zhang, Xinwen Zhang, Yekan Chen, Yili Shen, Bo Zhao, Yuxuan Luo

Abstract:

This article introduces a high-acoustic-dynamic-range and low-power digital microphone based on the electrostatic force feedback control (EFFC). The proposed design adjusts the sensitivity of the micro-electro-mechanical system (MEMS) by adaptively biasing it at different input amplitudes, thereby extending the dynamic range (DR). The proposed adaptive biasing technique allows the induced …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1199 – 1209
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3531509
Publisher: IEEE

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