30.6 A 16Mb 166.8TOPS/W Near-Memory Phase-Domain-Computing Ferroelectric NAND Flash for Approximate Nearest Neighbor Search on Edge Devices

2026 IEEE International Solid-State Circuits Conference (ISSCC) 2026

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Authors: Weizeng Li, Bohan Wang, Zhidao Zhou, Junyu Zhu, Zhi Li, Junzhe Shen, Wenfeng Zha, Zhongze Han, Y. F. Wang, Linfang Wang, Hongyang Hu, Qing Luo
+2 more Chunmeng Dou, Ming Liu
DOI: 10.1109/isscc49663.2026.11409218
Cited by: 1
References: 14

Abstract

Previous near-memory computing (NMC) or in-memory-computing (IMC) NANDs suffers from limited IO width, large energy-delay-product, and an inability to support diverse vector formats. This work presents a fabricated 16Mb near-memory phase-domain-computing (NM-PDC) FeNAND chip can compute the 512 similarity distances between 256-dimensional 4b vectors in a single search operation, achieving 166.8TOPS/W energy efficiency and a$12.8 \times$reduction in end-to-end search latency.

Fields of Study & Subjects

Ferroelectric and Negative Capacitance Devices Phase-change materials and chalcogenides Advanced Memory and Neural Computing

Publication details

Journal / source
2026 IEEE International Solid-State Circuits Conference (ISSCC)
Publisher
IEEE
Pages
522–524
Publication date
15 February 2026