4.6 Review

Architecture and Process Integration Overview of 3D NAND Flash Technologies

Journal

APPLIED SCIENCES-BASEL
Volume 11, Issue 15, Pages -

Publisher

MDPI
DOI: 10.3390/app11156703

Keywords

NAND flash memory; three-dimensional architecture; process integration

Funding

  1. National Research Foundation (NRF) - Korean Government [2019M3F3A1A03079821, 2020M3F3A2A01081656]
  2. Brain Korea 21 Four Program
  3. INHA UNIVERSITY Research Grant
  4. Institute for Information & Communication Technology Planning & Evaluation (IITP), Republic of Korea [2019M3F3A1A03079821] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)
  5. National Research Foundation of Korea [2020M3F3A2A01081656] Funding Source: Korea Institute of Science & Technology Information (KISTI), National Science & Technology Information Service (NTIS)

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This paper reviews 3D NAND flash technologies in terms of their architecture and fabrication methods, comparing the advantages and disadvantages of the architectures.
In the past few decades, NAND flash memory has been one of the most successful nonvolatile storage technologies, and it is commonly used in electronic devices because of its high scalability and reliable switching properties. To overcome the scaling limit of planar NAND flash arrays, various three-dimensional (3D) architectures of NAND flash memory and their process integration methods have been investigated in both industry and academia and adopted in commercial mass production. In this paper, 3D NAND flash technologies are reviewed in terms of their architecture and fabrication methods, and the advantages and disadvantages of the architectures are compared.

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