How does NAND Flash Work? Reading from TLC : Triple Level Cells || Exploring Solid State Drives

Mon, 05 Jun 2023 10:22:20 +0000

You can hold all the data in the American Library of Congress AND all the data from Wikipedia on a small stack of solid-state drives especially considering a single SSD's capacity can reach up to 30 TB of data. In this video, we'll explore how tens of terabytes can be crammed into such a small space. This technology is called 3D NAND, and specifically, we'll explore the physics and concepts on how 3 bits of information can be written to and read from individual cells.

Video Sponsor: Visit KIOXIA's website to see their lineup of solid-state drives:
https://business.kioxia.com/en....-us/ssd/enterprise-s

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Script, Modelling, Animation, Editing- Teddy Tablante
Twitter: @teddytablante
Voice Over- Phil Lee

Table of Contents:
00:00 - Setting up the Puzzle
01:26 - Microchips in the SSD
02:00 - Layout of Millions of Memory Cells
03:20 - What's a Threshold Voltage?
04:53 - Function of the Charge Trap
06:05 - Quick Recap
06:37 - Storing 1 Bit of Info
08:12 - Exploring a KIOXIA SSD
09:21 - Storing 3 Bits of Information
11:04 - Storing Information in Pages
12:16 - Wrap-up

This video is part of a series that intends to thoroughly explain how SSDs, and more specifically how 3D NAND works. These are the episodes in the series:
1) Overview of SSDs and 3D NAND: https://youtu.be/5Mh3o886qpg
2) Abridged overview of SSDs: https://youtu.be/E7Up7VuFd8A
3) How information is written to a cell: https://youtu.be/5f2xOxRGKqk

Key Branches from this video are Microchips, CPUs, Integrated Circuits,

Erratum:
6min 49sec: Right side note should be "A LOT of extra"

Animation built using Blender 2.82a https://www.blender.org/
Post with Adobe Premiere Pro

Book References:
Aritome, Seiichi. (2015). NAND flash memory technologies. IEEE Press Series on Microelectronic Systems. Wiley. [2nd most useful resource]

Cai, Yu et al. (2013) Threshold Voltage Distribution in MLC NAND Flash Memory: Characterization Analysis, and Modeling. 2013 Design, Automation & Test in Europe Conference & Exhibition. IEEE.

Micheloni, Rino. Marelli, Alessia. Eshghi, Kam. (2018) Inside solid state drives (SSDs) Second edition. Springer Series in Advanced Microelectronics Volume 37. Springer. [Most useful resource]

Micheloni, Rino. (2017) Solid-state-drives (SSDs) Modeling, Simulation tools & strategies. Springer Series in Advanced Microelectronics Volume 58. Springer

Micheloni, Rino (2016) 3D flash memories. Springer.

Pierret, Robert F. (1996) Semiconductor Device Fundamentals. Addison-Wesley Publishing Company.

Prince, Betty. (2014) Vertical 3D Memory Technologies. Wiley

Internet References:
Crisp, Simon. (29/01/2018) Samsung SSD860 PRO 4TB SSD Review. Kitguru.net
https://www.kitguru.net/compon....ents/ssd-drives/simo (Accessed 07/05/2020)

KIOXIA, Business Products, Enterprise SSD. https://business.kioxia.com/en....-us/ssd/enterprise-s (Accessed09/30/2020)

Mellor, Chris. (28/07/2016) QLC flash istricky stuff to make and use, so here's a primer. TheRegister.co.uk
https://www.theregister.co.uk/....2016/07/28/qlc_flash (Accessed 07/05/2020)

Samsung Website. Samsung 1TB Details and Specifications www.samsung.com
https://www.samsung.com/us/computing/memory-storage/solid-state-drives/ssd-860-evo-2-5--sata-iii-1tb-mz-76e1t0b-am/ (Accessed 07/05/2020)

Shah, Dhiram. (27/02/2019) Samsung Begins Mass Production of Frist 512 GB eUFS3.0 for Next-Generation Mobile Devices. Fareastgizmos.com
https://fareastgizmos.com/smar....tphone/samsung-begin (Accessed 07/05/2020)

Wikipedia contributors. "Charge Trap Flash." "Flash Memory." "Floating-gate Mosfet." "Samsung Electronics." "Solid-State drive." "Solid-state storage." "Three-dimensional integrated circuit." Wikipedia, The Free Encyclopedia. Wikipedia, The Free Encyclopedia, Visited May, 2020

Yoon, Alex. (15/02/2018) Understanding Memory, An inside look at different memory types and how they work. Semiengineering.com
https://semiengineering.com/wh....ats-really-happening (Accessed 07/05/2020)