Arrays

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A 12-bit 1-GS/s Current-Steering DAC With Paired Current Source Switching Background Mismatch Calibration

A 12-bit 1-GS/s Current-Steering DAC With Paired Current Source Switching Background Mismatch Calibration 150 150
Author(s): Chang-Un Park, Jae-Hyun Chung, Chunsuk Kim, Hyun-Woo Shin, Charlie Tahar, Seung-Tak Ryu

Abstract:

This article presents a spur-suppressed background calibration technique for high-speed current-steering digital-to-analog converters (DACs), based on a paired current source (CS) switching scheme. In conventional background calibration, periodic switching of CSs to and from the calibration mode introduces unwanted glitches that appear as spurious tones. The proposed technique introduces an …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 11
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3668788
Publisher: IEEE

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MixCIM: A Hybrid Computing-in-Memory Macro With Less Data-Movement and Better Memory-Reuse for Depthwise Separable Neural Networks

MixCIM: A Hybrid Computing-in-Memory Macro With Less Data-Movement and Better Memory-Reuse for Depthwise Separable Neural Networks 150 150
Author(s): Xin Qiao, Youming Yang, Jiahao Song, Renjie Wei, Xiyuan Tang, Meng Li, Runsheng Wang, Yuan Wang

Abstract:

Computing-in-memory (CIM) architectures have demonstrated strong potential for edge artificial intelligence (AI) devices due to their enhanced parallelism and energy efficiency. With the growing complexity of AI tasks and the rapid increase in model size, computation and deployment costs have surged. Depthwise separable neural networks (DSNNs) have attracted interest for …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 13
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2026.3651775
Publisher: IEEE

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A 29-Gb/mm2 1-Tb 3-b/Cell 3-D Flash Memory With CMOS Direct Bonded Array (CBA) Technology

A 29-Gb/mm2 1-Tb 3-b/Cell 3-D Flash Memory With CMOS Direct Bonded Array (CBA) Technology 150 150
Author(s): Kosuke Yanagidaira, Mario Sako, Yasuhiro Hirashima, Yumi Higashi, Yutaka Shimizu, Takeshi Nakano, Yusuke Ochi, Hiroaki Yamada, Nobushi Matsuura, Akihiro Imamoto, Kazuaki Kawaguchi, Koji Tabata, Hiroaki Hoshino, Takeshi Hioka, Shigehito Saigusa, Hiroki Date, Masaki Unno, Jumpei Sato, You Kamata, Takahiro Shimizu, Akio Sugahara, Taira Shibuya, Atsushi Okuyama, Junji Yamada, Takatoshi Minamoto, Hardwell Chibvongodze, Naoki Ojima, Hiroshi Sugawara, Masahiro Kano, Jang-Woo Lee, Hiroyuki Mizukoshi, Ryuji Yamashita, Kensaku Abe, Naohito Morozumi, In-Soo Yoon, Takuya Ariki, Jong Hak Yuh, Khin Htoo, Yosuke Kato, Yoshihiro Oyama, Yen-Lung Jason Li, Yoshihisa Watanabe, Toshiyuki Kouchi, Koji Hosono

Abstract:

This article reports a 1-Tb 3-b/cell 3-D flash memory fabricated with CMOS direct bonded array (CBA) technology. Compaction of circuits and wires achieves the highest bit density in the world over 29 Gb/mm2 with 332-word line (WL) layers. The bit density is improved by 71% from a previous generation despite …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 237 – 249
Year of Publication: 2026
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3617579
Publisher: IEEE

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A 28-nm Computing-in-Memory Processor With Zig-Zag Backbone-Systolic CIM and Block-/Self-Gating CAM for NN/Recommendation Applications

A 28-nm Computing-in-Memory Processor With Zig-Zag Backbone-Systolic CIM and Block-/Self-Gating CAM for NN/Recommendation Applications 150 150
Author(s): Shengzhe Yan, Zhuoyu Dai, Zhaori Cong, Zeyu Guo, Yifan He, Wenyu Sun, Chunmeng Dou, Feng Zhang, Jinshan Yue, Yongpan Liu, Ming Liu

Abstract:

Computing-in-memory (CIM) chips have demonstrated promising energy efficiency for artificial intelligence (AI) applications such as neural networks (NNs), Transformer, and recommendation system (RecSys). However, several challenges still exist. First, a large gap between the macro and system-level CIM energy efficiency is observed. Second, several memory-dominate operations, such as embedding in …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 15
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3610539
Publisher: IEEE

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ROZK: An Energy-Efficient DNN Accelerator Based on Reconfigurable NoC and Local Zero-Skipping

ROZK: An Energy-Efficient DNN Accelerator Based on Reconfigurable NoC and Local Zero-Skipping 150 150
Author(s): Heetak Kim, Yunpyo Hong, Byungsoo Kim, Jongsun Park

Abstract:

Zero-skipping is a famous technique to improve the energy efficiency of deep neural network (DNN) accelerators. When the zero-skipping is realized with encoded data using lossless compression, irregular and unpredictable size of data due to inconsistent compression rate incurs several design issues including: 1) load imbalance from irregularity of data stored …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3604814
Publisher: IEEE

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A High-Density Low-Leakage and Low-Power Fully Voltage-Stacked SRAM for IoT Application

A High-Density Low-Leakage and Low-Power Fully Voltage-Stacked SRAM for IoT Application 150 150
Author(s): Sekeon Kim, Giseok Kim, Kyeongrim Baek, Keonhee Cho, Hyunjun Kim, Yeonho Jung, Dongwook Seo, Sangyeop Baeck, Sungjae Lee, Seong-Ook Jung

Abstract:

The general approach to suppress leakage in static random access memory (SRAM) is to use a low voltage ( $V_{text {L}}$ ), generated by a low-dropout regulator (LDO), as the cell supply voltage (CVDD) of SRAM array in the standby mode. However, the effectiveness of lowering CVDD is constrained by the …

Published in: IEEE Journal of Solid-State Circuits
Page(s): 1 – 12
Year of Publication: 2025
Electronic ISSN: 1558-173X
DOI: 10.1109/JSSC.2025.3582974
Publisher: IEEE

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Cryogenic Hyperdimensional In-Memory Computing Using Ferroelectric TCAM

Cryogenic Hyperdimensional In-Memory Computing Using Ferroelectric TCAM 150 150
Author(s): Shivendra Singh Parihar, Shubham Kumar, Swetaki Chatterjee, Girish Pahwa, Yogesh Singh Chauhan, Hussam Amrouch

Abstract:

Cryogenic operations of electronics present a significant step forward to achieve huge demand of in-memory computing (IMC) for high-performance computing, quantum computing, and military applications. Ferroelectric (FE) is a promising candidate to develop the complementary metal oxide semiconductor (CMOS)-compatible nonvolatile memories. Hence, in this work, we investigate the effectiveness …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 34 – 41
Year of Publication: 2025
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2025.3547797
Publisher: IEEE

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Binarized Neural-Network Parallel-Processing Accelerator Macro Designed for an Energy Efficiency Higher Than 100 TOPS/W

Binarized Neural-Network Parallel-Processing Accelerator Macro Designed for an Energy Efficiency Higher Than 100 TOPS/W 150 150
Author(s): Yusaku Shiotsu, Satoshi Sugahara

Abstract:

A binarized neural-network (BNN) accelerator macro is developed based on a processing-in-memory (PIM) architecture having the ability of eight-parallel multiply-accumulate (MAC) processing. The parallel-processing PIM macro, referred to as a PPIM macro, is designed to perform the parallel processing with no use of multiport SRAM cells and to achieve the …

Published in: IEEE Journal on Exploratory Solid-State Computational Devices and Circuits
Page(s): 25 – 33
Year of Publication: 2025
Electronic ISSN: 2329-9231
DOI: 10.1109/JXCDC.2025.3538702
Publisher: IEEE

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