Presentation 2016-12-15
[Poster Presentation] Reduction of Data-Retention Error in TLC NAND Flash Memories
Yuichi Sato, Yoshiaki Deguchi, Atsuro Kobayashi, Ken Takeuchi,
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Abstract(in Japanese) (See Japanese page)
Abstract(in English) The cost of NAND flash memory is reduced by scaling and multi-level cell technologies. However, the reliability of triple-level cell (TLC : 3-bit/cell) NAND flash is degraded due to the narrower read margins. Moreover, due to the write/erase endurance stress, traps which may capture electrons are generated in the tunnel oxide. Data-retention error is caused by ejecting electrons from the floating-gate via traps. Reliability is degraded by scaling since the threshold voltage is more decreased when one electron ejects. This paper reports data-retention error reduction technique of TLC NAND flash memory.
Keyword(in Japanese) (See Japanese page)
Keyword(in English) NAND flash memory / Reliability
Paper # ICD2016-76,CPSY2016-82
Date of Issue 2016-12-08 (ICD, CPSY)

Conference Information
Committee ICD / CPSY
Conference Date 2016/12/15(2days)
Place (in Japanese) (See Japanese page)
Place (in English) Tokyo Institute of Technology
Topics (in Japanese) (See Japanese page)
Topics (in English)
Chair Minoru Fujishima(Hiroshima Univ.) / Yasuhiko Nakashima(NAIST)
Vice Chair Hideto Hidaka(Renesas) / Koji Nakano(Hiroshima Univ.) / Hidetsugu Irie(Univ. of Tokyo)
Secretary Hideto Hidaka(Hiroshima Univ.) / Koji Nakano(Univ. of Tokyo) / Hidetsugu Irie(Fujitsu Labs.)
Assistant Takashi Hashimoto(Panasonic) / Masanori Natsui(Tohoku Univ.) / Hiroyuki Ito(Tokyo Inst. of Tech.) / Pham Konkuha(Univ. of Electro-Comm.) / Takeshi Ohkawa(Utsunomiya Univ.) / Shinya Takameda(Hokkaido Univ.)

Paper Information
Registration To Technical Committee on Integrated Circuits and Devices / Technical Committee on Computer Systems
Language JPN
Title (in Japanese) (See Japanese page)
Sub Title (in Japanese) (See Japanese page)
Title (in English) [Poster Presentation] Reduction of Data-Retention Error in TLC NAND Flash Memories
Sub Title (in English)
Keyword(1) NAND flash memory
Keyword(2) Reliability
1st Author's Name Yuichi Sato
1st Author's Affiliation Chuo University(Chuo Univ.)
2nd Author's Name Yoshiaki Deguchi
2nd Author's Affiliation Chuo University(Chuo Univ.)
3rd Author's Name Atsuro Kobayashi
3rd Author's Affiliation Chuo University(Chuo Univ.)
4th Author's Name Ken Takeuchi
4th Author's Affiliation Chuo University(Chuo Univ.)
Date 2016-12-15
Paper # ICD2016-76,CPSY2016-82
Volume (vol) vol.116
Number (no) ICD-364,CPSY-365
Page pp.pp.75-75(ICD), pp.75-75(CPSY),
#Pages 1
Date of Issue 2016-12-08 (ICD, CPSY)