Three-dimensional NAND flash architecture design based on single-crystalline STacked ARray

Yoon Kim, Jang Gn Yun, Se Hwan Park, Wandong Kim, Joo Yun Seo, Myounggon Kang, Kyung Chang Ryoo, Jeong Hoon Oh, Jong Ho Lee, Hyungcheol Shin, Byung Gook Park

Research output: Contribution to journalArticlepeer-review

73 Scopus citations

Abstract

Various critical issues related with 3-D stacked nand Flash memory are examined in this paper. Our single-crystalline STacked ARray (STAR) has many advantages such as better scalability, possibility of single-crystal channel, less sensitivity to 3-D interference, stable virtual source/drain characteristic, and more extendability over other stacked structures. With STAR, we proposed a unit 3-D structure, i.e., "building". Then, using this new component, 3-D block and full chip architecture are successfully designed. For the first time, the structure and operation methods of the "full" array are considered. The fully designed 3-D nand Flash architecture will be the novel solution of reliable 3-D stacked nand Flash memory for terabit density.

Original languageEnglish
Article number6062401
Pages (from-to)35-45
Number of pages11
JournalIEEE Transactions on Electron Devices
Volume59
Issue number1
DOIs
StatePublished - Jan 2012

Keywords

  • 3-D block
  • 3-D memory
  • 3-D stacked nand Flash memory
  • Channel-channel (Ch-Ch) coupling
  • single-crystalline STacked ARray (STAR)

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