Evidence map›Paper›PMID 40877286›Full record

ArticleNature communications2025

Charge-domain content addressable memory based on ferroelectric capacitive memory for reliable and energy-efficient one-shot learning.

Zuopu Zhou, Hongtao Zhong, Leming Jiao, Zijie Zheng, Huazhong Yang, Thomas Kämpfe, Kai Ni, Xueqing Li, Xiao Gong

Abstract read
In one paragraph

Article in Nature communications, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Article
  2. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

9 authors.

Zuopu Zhou *Department of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.ORCID http://orcid.org/0000-0003-4812-8524
Hongtao Zhong *Department of Electronic Engineering, Tsinghua University, Beijing, China.
Leming JiaoDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.
Zijie ZhengDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore.ORCID http://orcid.org/0000-0001-8265-6019
Huazhong YangDepartment of Electronic Engineering, Tsinghua University, Beijing, China.
Thomas KämpfeCenter Nanoelectronic Technologies, Fraunhofer IPMS, Dresden, Germany.ORCID http://orcid.org/0000-0002-4672-8676
Kai NiDepartment of Electrical Engineering, University of Notre Dame, Notre Dame, IN, USA.ORCID http://orcid.org/0000-0002-3628-3431
Xueqing LiDepartment of Electronic Engineering, Tsinghua University, Beijing, China. xueqingli@tsinghua.edu.cn.ORCID http://orcid.org/0000-0002-8051-3345
Xiao GongDepartment of Electrical and Computer Engineering, National University of Singapore, Singapore, Singapore. elegong@nus.edu.sg.ORCID http://orcid.org/0000-0002-9243-1937

Funding

Ministry of Education - Singapore (MOE) A-8001168-00-00Ministry of Education - Singapore (MOE) MOE-T2EP50221-0008
6 · The paper itself

Abstract

Non-volatile content addressable memories (NV-CAMs) accelerate memory augmented neural networks (MANNs) for brain-like efficient learning from a few examples or even one example. However, most existing NV-CAMs operate in current domain, posing challenges in reliable, low-power, and sensing-friendly Hamming distance (HD) computation. To address these challenges, this work proposes transferring the computation to charge domain using ferroelectric capacitive memory (FCM). For the first time, a charge-domain 2FCM CAM based on the inversion-type FCM is reported. By storing data as device capacitance, this CAM structure directly outputs HD as linear multi-level voltages, enabling simplified sensing processes and reduced peripheral costs. Its differential nature further exhibits immunity to device variation, ensuring accuracy in the computation of long data vectors. Parallel 16-bit HD computation using a fabricated 16 × 16 2FCM CAM array is experimentally demonstrated with record performance at array level, evidencing the superiority of charge-domain computation and showcasing tremendous potential for in-memory-search applications.

Identifiers

PMID40877286
PMCPMC12394611

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.