Highly reliable 26nm 64Gb MLC E2NAND (Embedded-ECC & Enhanced-efficiency) flash memory with MSP (Memory Signal Processing) controller

A highly reliable 26nm 64GB MLC E2NAND (E2: Embedded-ECC & Enhanced-efficiency) flash memory has been successfully developed. To overcome scaling challenges, novel integration and operation technologies, such as 2-dummy word-line (WL) scheme, depletion suppressing process, hydrogen reducing proc...

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Main Authors: Hyunyoung Shim, Seaung-Suk Lee, Byungkook Kim, Namjae Lee, Doyoung Kim, Hankyum Kim, Byungkeun Ahn, Youngho Hwang, Hoseok Lee, Jumsoo Kim, Youngbok Lee, Heeyoul Lee, Juyeab Lee, Seungho Chang, Joongseob Yang, Sungkye Park, Aritome, S., Seokkiu Lee, Kun-Ok Ahn, Gihyun Bae, Yeseok Yang
Format: Conference Proceeding
Language:English
Subjects:
Couplings
E2NAND
Error correction codes
Flash memory
Logic gates
MLC
MSP controller and reliability
Reliability
Signal processing
Very large scale integration
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Summary:A highly reliable 26nm 64GB MLC E2NAND (E2: Embedded-ECC & Enhanced-efficiency) flash memory has been successfully developed. To overcome scaling challenges, novel integration and operation technologies, such as 2-dummy word-line (WL) scheme, depletion suppressing process, hydrogen reducing process and Virtual Negative Read (VNR) scheme are introduced. And also, Memory Signal Processing (MSP) controller is used for enhancing performance and reliability. Finally, 5K cycling and 1 year data retention can be greatly achieved.
ISSN:0743-1562