A 32Gb MLC NAND-flash memory with Vth-endurance-enhancing schemes in 32nm CMOS

Changhyuk Lee, Sok Kyu Lee, Sunghoon Ahn, Jinhaeng Lee, Wonsun Park, Yongdeok Cho, Chaekyu Jang, Chulwoo Yang, Sanghwa Chung, In Suk Yun, Byoungin Joo, Byoungkwan Jeong, Jeeyul Kim, Jaekwan Kwon, Hyunjong Jin, Yujong Noh, Jooyun Ha, Moonsoo Sung, Daeil Choi, Sanghwan KimJeawon Choi, Taeho Jeon, Joong Seob Yang, Yo Hwan Koh

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

23 Scopus citations

Abstract

As NAND flash memory market grows rapidly in various application such as USB devices, MP3 players, SSD, cellular phone, cameras, there is a strong requirement of high density and low cost devices. Two different approaches studied to meet these requirements are increasing data per cell and scaling down. 3b/cell or 4b/cell NAND flash memories were introduced as an effective way to lower cost [1,2]. However, these devices suffer from significant program performance degradation since tighter Vth distribution is required. On the other hand, scaling down can be a candidate to achieve low cost while maintaining high program performance even though there are several hurdles to overcome such as floating gate (FG) coupling and charge retention [3].

Original languageEnglish
Title of host publication2010 IEEE International Solid-State Circuits Conference, ISSCC 2010 - Digest of Technical Papers
Pages446-447
Number of pages2
DOIs
StatePublished - 2010
Event2010 IEEE International Solid-State Circuits Conference, ISSCC 2010 - San Francisco, CA, United States
Duration: 7 Feb 201011 Feb 2010

Publication series

NameDigest of Technical Papers - IEEE International Solid-State Circuits Conference
Volume53
ISSN (Print)0193-6530

Conference

Conference2010 IEEE International Solid-State Circuits Conference, ISSCC 2010
Country/TerritoryUnited States
CitySan Francisco, CA
Period7/02/1011/02/10

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