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

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

Рет қаралды 365,060

Күн бұрын

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:
business.kioxi...
Do you want to support in-depth engineering and technology education? Support us on: / brancheducation
Website: www.branch.edu...
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On Insta: / brancheducation
Or Join us on KZfaq Memberships: / @brancheducation
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: • How do SSDs Work? | Ho...
2) Abridged overview of SSDs: • How do SSDs Work? How...
3) How information is written to a cell: • The Engineering Puzzle...
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 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
www.kitguru.ne... (Accessed 07/05/2020)
KIOXIA, Business Products, Enterprise SSD. business.kioxi... (Accessed09/30/2020)
Mellor, Chris. (28/07/2016) QLC flash istricky stuff to make and use, so here's a primer. TheRegister.co.uk
www.theregiste... (Accessed 07/05/2020)
Samsung Website. Samsung 1TB Details and Specifications www.samsung.com
www.samsung.co... (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
fareastgizmos.... (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
semiengineerin... (Accessed 07/05/2020)
#SSD #VNAND #3DNAND

Пікірлер: 522

@scnt4693 3 жыл бұрын

The simplicity with how this channel explains some of the most complicated topics of modern technology and still manages to leave nothing untold is astonishing. I was about to ask exactly how electrons are stored in the charge trap and immidiatly after the video points me toward the answer. This serie is a true work of art. Thanks for sharing.

@T0M50N 3 жыл бұрын

Agreed, I would normally have no interest in this topic at all but I can't help but watch when it's presented this well.

@StephenRayner 3 жыл бұрын

Agreed! Absolutely incredible... we need this guy teaching our youth or this style at least.

@johnnysparkleface3096 3 жыл бұрын

Yeah, I couldn't keep up with the explanation. I believe it was all perfectly explained, but it was all techno-jibber-jabber to me. I would have to watch this 1000 times before any of it made sense.

@matthewmcclain1316 3 жыл бұрын

Seriously. This guy puts a ton of effort into these videos. And the animations! Again, the animations! They're always exactly what he's talking about and showing. I wonder if he does those as well, or if that's outsourced. Either way, extremely impressive

@benedictmaloney7387 3 жыл бұрын

0 . . ,

@Quantum_Dots 3 жыл бұрын

This channel should be part of engineering course

@BranchEducation 3 жыл бұрын

Thanks a ton!! The hope is to indeed be integrated into engineering courses and high school science courses.

@tkhatree5091 3 жыл бұрын

Agreed

@EnergeticWaves 3 жыл бұрын

@@BranchEducation These are some of the best videos I have ever seen!!

@RakeshKumar-bd5ju 3 жыл бұрын

Agreed

@daspferd7810 2 жыл бұрын

@@BranchEducation if you translate your videos to Spanish I'll certainly include a lot of them in the physics course I teach

@Psychopatz 3 жыл бұрын

Omg, I didn't even know 30 terabyte capacity SSD already existed. What a time to be alive!

@TheAnimystro 3 жыл бұрын

hold on to your papers!

@nihil_._sum 3 жыл бұрын

@@TheAnimystro you just have to wait two minutes for them

@Psychopatz 3 жыл бұрын

@@silverliniing Wow, thats crazy how much technology advances in such a short time. I guess I will not gonna be surprise if next year there will be flashdrive sized petabyte version of it soon.. yet here I am commenting using windows 8.1 with 32gb SSD Netbook....😪

@maximodakila2873 3 жыл бұрын

@@silverliniing Thanks, I just bought 2 pcs. It's too expensive yet, I can only afford 2

@CyberMew 3 жыл бұрын

Maximo Dakila 2?! That’s 80000USD for 200TB!

@BrunoCosta-eu7ty 3 жыл бұрын

I studied electronic engineering my whole life, and I have never seen such an incredible demonstration ... congratulations for the work done on this channel

@jonka1 3 жыл бұрын

Well said!

@avisekhghosh2757 3 жыл бұрын

Never been this early, I am proud to be studying electronics. I learnt more in these 13 minutes compared to all my cumulative study of a week. Full patreon support to this channel when I get my job!!!

@gauravproton1956 3 жыл бұрын

So what are you now?

@MrFujinko 2 жыл бұрын

@@gauravproton1956 uber driver

@ThermalWorld_ 3 жыл бұрын

This is the most detailed and most illustrated explanation ever. Thank you for the wonderful work you have done to explain everything in a simple and illustrative way

@ClassierAunt 3 жыл бұрын

Dude you destroyed my 4 years of college in just a single video.

@aarongreenfield9038 3 жыл бұрын

And this video was free to watch, how much did all those worthless college books cost?

@wyattb3138 3 жыл бұрын

There’s less of a need for college every year. The tuition cost is exorbitant, the professors are hard to learn from, and free KZfaq tutorials are easier to understand than the paid lectures. I’m not sure if I should dropout and learn on my own on my own time and risk a 4 year bachelors degree.

@garfieldandfriends1 3 жыл бұрын

*College professors hate him!*

@snoowwe 3 жыл бұрын

Hate seeing this comment everywhere as if a video like this was all you needed to know. It's a help, but it won't replace your hours of studying.

@Thros1 2 жыл бұрын

@@snoowwe all the knowledge is freely available but unfortunately doesn't really look great on a resume

@lucasala3838 3 жыл бұрын

Probably the best educational channel on electronics, engineering and technology. Keep it up!

@fzigunov 3 жыл бұрын

I'm so glad you got sponsored, this is a great recognition of your awesome work!

@BranchEducation 3 жыл бұрын

Thank you so much!

@Sidiann Жыл бұрын

I love this channel so much. Everytime an explanation brings up a new question, it is answerd right after. This type of teaching is extremely impressive.

@akashkumarmahtoprotech6855 3 жыл бұрын

I am waiting for the video for a long time ,thank you so much BRANCH EDUCATION to provinding us a amazing concept through 3d animation . LOVE YOU

@funpfunkafunda649 Жыл бұрын

The way this channel explained all the concepts are fabulous..this is the way colleges should teach.

@Gosu9765 3 жыл бұрын

I was always wondering how TLC flash works and what that means exactly. Really glad KZfaq recommended me this channel.

@MentalEdge 3 жыл бұрын

This also makes it very intuitive to understand why QLC, TLC and MLC can't physically be as fast as SLC.

@mikeyburbol 4 ай бұрын

Man this is some the hands down best explanations I have ever seen

@RayMak 3 жыл бұрын

Ssd are getting better and better

@SilesianWarrior 3 жыл бұрын

Indeed, the ability to store exabytes of memes draws near.

@yamatsukami987 3 жыл бұрын

@ yes i think their will come a time when SSD's will need a large cache of faster more durable cells at this rate. Tbh tho i think SSD's are fast enough for most things right now, and RAID exists for anyone who really really needs the fastest speeds.

@yamatsukami987 3 жыл бұрын

@ well it's not like they are getting slower, just means you might not be able to read dozens of gigs a second off a single SSD without making some compromises if they can't. That said I think we are further from the limits of memory technology than CPU's, it just might take a fundamentally new approach to memory storage.

@kevikiru 3 жыл бұрын

And slower and slower, relatively. Those levels of voltage leads to slower performance as opposed to single voltage cells

@dragoon8675 3 жыл бұрын

I have seen you comment in 12 of the video's I have watched lately...

@deadlyshot7548 3 жыл бұрын

thank you for this video, amazing to have someone doing this, most ppl just care about performance but some of us want to know in which way it achieves performance

@nynra6584 3 жыл бұрын

Thank you for this unmatched quality of educational video. I don't think there is any other channel that comes this close to illustrating this simply and with this much sufficiency. But please make lots and lots of videos. There are only few.

@gobbel2000 3 жыл бұрын

Now I just wonder how these tiny and complex cells are built.

@haisesasakipratama1629 3 жыл бұрын

this is future hahahah

@ikramramli6410 3 жыл бұрын

Aliens

@menmanamikaze1830 3 жыл бұрын

@@ikramramli6410 OMG IT'S BEEN ALIENS ALL ALONG I'LL POST THIS ON MY CONSPIRACY FACEBOOK GROUP (I'm jk)

@lexciobotariu 3 жыл бұрын

I’ve been looking for this comment

@Alorand 3 жыл бұрын

Very carefully... lol 🤣

@ktvx.94 3 жыл бұрын

First time I don't skip an ad within the video. Great job at making your sponsor actually relevant

@OiVinn-eq1ml Жыл бұрын

I learn more in this one video than my entire electronics engineering course

@nanayawsampong9233 3 жыл бұрын

I am really grateful for being in this timeline, People who understand the complexity would agree

@swankitydankity297 3 жыл бұрын

I can't convey just how wonderfully clear this video made this topic for me, the animations and diagrams are excellent and the narration was perfect, explaining everything step by step, with nothing in between left unexplained for me to ponder. Thank you and well done!

@94D33M Жыл бұрын

One of the most underrated channels on youtube. 300k views only? That's very unfair

@kapilbusawah7169 3 жыл бұрын

Oh shit this channel is gold! These high quality animations, narrations and education right here. I appreciate your work 👌

@bijankumardhar9764 4 ай бұрын

Thanks for the vivid information about display and memorisation of information in cell phone.It is clear to me.❤

@pushing2throttles 3 жыл бұрын

I absolutely love this channel. I'm sure a lot of work goes into the animations and I just wanted to say thank you. Y'all are appreciated!

@echoo200 2 жыл бұрын

These videos are awesome. Not too fast, well versed. May have missing information by any chance but I don't care that much, the whole thought is there for an average person to understand. Kudos

@Shakrii 3 жыл бұрын

Thanks for including the detailed comments, they are vastly appropriated.

@nathanndruwin1782 2 жыл бұрын

Finally.. I now understand where the theoretical Solid State Physics class is applied. Thank you so much. Can't wait to share this and rest of the series.

@vxqr2788 3 жыл бұрын

The technical details of this videos dramatically increased, add to it beautiful graphics and you just got a brilliant piece of art.

@VaderHater1993 3 жыл бұрын

That Kioxia comparison at the 9-minute mark was the incredibly effective advertising for a product.

@UnimatrixYoutube 3 жыл бұрын

Very useful! Thanks Branch Education and Kioxia. Btw, the animator did a good job in showing those massive caps on the enterprise version (as opposed to the consumer version which probably lacks these :P ).

@BranchEducation 3 жыл бұрын

Haha- yeah! they do have pretty good size caps on them.

@dibyadrastasahoo1765 3 жыл бұрын

@@BranchEducation Dear Sir; Thanks for all these videos.please upload more videos regarding NAND Flash starting from ground level to high level.

@rashidashraf2001 3 жыл бұрын

Sir, I am very Happy after seeing your Video. Its So Beautiful. Not one video, yours all videos in 3d view its a magic...

@RakeshBalakrishnan 2 жыл бұрын

this excellent visualisation!, having been in flash industry for last 9 years, this is the first time am seeing such !

@TheRealLink 3 жыл бұрын

The level of information here is just insane, yet illustrated and broken down in such an easy way to understand! Going to go find your Patreon stat.

@Pythonagrator 3 жыл бұрын

The quality of this content is astounding. Such high quality visualisations and explanations. A truly excellent job. Hats off to the creators.

@bob_smite 3 жыл бұрын

This is so cool! It's crazy how we can manufacture electronics that are measurable by the atomic scale. It makes me think that connectors on the motherboard (like the SATA and PCIE ports) will shrink once technology grows smaller and smaller.

@maltoNitho 3 жыл бұрын

What a stunningly excellent and eloquent explanation for NAND. I’ve read the details but I never really thought “how does it function-physically?” Thank you very much! Sub’d.

@rahsaansargusingh6557 3 жыл бұрын

Lovin the recap section. This channel provides information better than a school

@nagaguard 2 жыл бұрын

I had so many questions about what a page is, how a cell can store more than 2 values, how does it even work to have all your gates sharing an input, how can multiple cells be read in parallel. This video answered all my questions.

@batman_2004 3 жыл бұрын

This is so incredible. Not only the content and explanation but the quality of animation too!

@aim-iitdelhi 3 жыл бұрын

Outstanding stuff! This is the only KZfaq channel I like the most...

@antooinex 3 жыл бұрын

This channel is so damn great, learning stuff has never felt so effortless. Very good job as always, keep going :)

@Hasitier 3 жыл бұрын

I really like the detail of information and the good to understand explanations on this channel. As I’m an it administrator and mostly know those things I often point colleagues to your videos because I could not explain such things better then you do.

@BranchEducation 3 жыл бұрын

Much appreciated!

@garethkipkoech 3 жыл бұрын

I've learnt so much complex stuff from your channel in the simplest ways... thanks alot.Your work is great.

@BranchEducation 3 жыл бұрын

Happy to hear that!

@garethkipkoech 3 жыл бұрын

@@BranchEducation how do you get the presentation or the visualisation?

@BranchEducation 3 жыл бұрын

@@garethkipkoech its animated in Blender

@spasskostov 3 жыл бұрын

This is a very good engineering education channel! A must for everyone following current technologies.

@EnergeticWaves 3 жыл бұрын

that arbitrary bit pattern you show in the captions is quite fascinating.

@VarunKumar-yg8ij 3 жыл бұрын

Superb Video!! These things are really black box for many of Engineers!!

@kieroto5372 3 жыл бұрын

Thank you for these quality education videos! The research, credibility and production quality of these 3D models is very high! You deserve so much more subscribes!

@user-km5vh1nt7j 3 жыл бұрын

Hi, I'm an engineer from SamSung Semiconductor, our spec about SSD said data on NAND will be kept for 3 months when poweroff, not years, we give our promise to customers too.

@GyanPrakash-pl5ct 2 жыл бұрын

Awesome! contents are amazing. Can't explain how happy I am after seeing this video about NAND internal mechanisms. Great work!

@VirginiaGreco_Scrapbooking Жыл бұрын

Another amazing animation and great explanation!

@daspferd7810 2 жыл бұрын

Amazing. The comments are huge level up for the explanations

@zhifengchen1093 3 жыл бұрын

Thanks a lot for the highly quality video. I learned a lot from it. Looking forward to the manufacturing process of the 3D NAND.

@Plepple 3 жыл бұрын

Absolutely amazing channel! HUGE thanks to the creator for all the diligence going into creating these videos.

@winterarkwright4743 3 жыл бұрын

It's so complicated yet it all makes sense. Mind blown.

@dxgl Жыл бұрын

The 550MB/sec figure is for SATA SSDs. Thanks to PCI Express and NVMe, there are consumer M.2 drives reaching over 6GB/sec on PCIe 4.0 systems.

@kingrb1394 7 ай бұрын

The fact that people even designed this technology is so remarkable to me

@ubermakee 3 жыл бұрын

Very interesting and informative video, but it raised further questions in my mind as well. For example, how can electrons be removed from the charge trap? If the same voltage increases in all gates in a page, that should attract electrons into the charge trap in every cells. How is that prevented? How can only a single cell be modified? Knowing the general characterictics of an SSD/cheap VNAND, how can a cell be damaged in case of writing and why is it getting worse by increasing its capacity? I would highly appreciate such explanations in a similar, incredible quality educational video.

@BranchEducation 3 жыл бұрын

I made a video about writing to a cell. Basically the write voltage is 18- 20v and read is 0-4.5v

@ubermakee 3 жыл бұрын

@@BranchEducation Thank You for your reply. :) Keep making such contents, they are really great not just in explanation but in visualization as well! One of the best chanels I subscribed to!

@channelname1238 3 жыл бұрын

Fantastic series, I hope your other videos are just as great but this series alone has easily earned a sub from me. Great job at explaining this in a way someone like me (ie not an engineering student) can understand without making it super basic. Thanks for your content

@scottfranco1962 3 жыл бұрын

Jeez the animation here is just incredible.

@skriaz2501 3 жыл бұрын

Hello friend! It's pleasure to see your channel growing very fast. You deserve it.😊😊

@BranchEducation 3 жыл бұрын

Thanks! Much appreciated

@andianderson115 3 жыл бұрын

This is jsut such a great chanllenge! Thanks for making learnung fun even at 1am...

@soontaek 3 жыл бұрын

Mind blown by the technology and the animations. Thank you.

@samjoel4152 3 жыл бұрын

You deserve a million subs..the content you are making is marvellous..😍

@engrmohusman 3 жыл бұрын

You're Awesome Sir. You explained it better then anyone else could.

@prashantchauhan1573 3 жыл бұрын

your animations are way better than reality …..awesome job . May god bless you for the educational information you are sharing with your domain of expertise in video editing and theoretical knowledge. Love from India ..!!!!!

@saladamista7940 2 жыл бұрын

I'm so amazed to the way this technology works. It`s incredible how far we can go, makes me fell hopefully about our specie, regardless the way things are nowadays.Also wanna say that the explanation makes it easy to understand.This channel is awesome , congratulations

@fortun8diamond Жыл бұрын

Changing the reading technique can improve the amount of data stored in the same object.

@cengizteouluyurt7053 3 жыл бұрын

I really respect you for doing magnificent and easy to understand videos. I hope you keep up, these videos are so educational.

@TELUGUAWESOMEchannel 3 жыл бұрын

Wonderful explanation ....Really u r videos makes people intelligent ...

@waleedumer9495 3 жыл бұрын

This channel is a gem for tech lovers

@SOFTWAREMASTER 3 жыл бұрын

God damn... This whole concept is BIG BRAIN!!

@RealityMixer 3 жыл бұрын

I’ve never been this early

@NuclearTopSpot 3 жыл бұрын

Last time I was this early, computer memory was still woven by hand. I'll leave this here just in case: kzfaq.info/get/bejne/b8tihq9mm6y3cas.html

@qx3230 3 жыл бұрын

Same

@StephenRayner 3 жыл бұрын

What an odd conversation. I love you internet peeps. Hope you are all well

@Richie_ Жыл бұрын

From magnetic core rope memory to this.. Amazing..

@GeneralAlgren 3 жыл бұрын

Fantastic video btw! I would love if you did a video on how a traditional platter hard drive works at this level and maybe include how storage density has evolved on this medium. Nice work!

@philipphermann9454 2 жыл бұрын

Now I understand why I had to learn about octal numbers in programming. Never used them, though.

@BillingSoftwareGuru 3 жыл бұрын

Enjoyed Watching your Video & Got Idea how SSD Works.... Thank You Sir.

@Reyese98 2 жыл бұрын

I have learn so much from this videos, this is so interesting learning bout this.

@junalynbagani5154 Жыл бұрын

Thank you so much. Very useful!

@stevenwright991 2 жыл бұрын

Very cool and well illustrated 😎👍, very well done 👏

@pratikrajsah 2 жыл бұрын

this is the work of pure art

@nanirocks1802 3 жыл бұрын

Continue this channel with new videos ❤️❤️❤️.

@_tinkerBOY 3 жыл бұрын

Every tech geek should watch this video!

@marvnwolf123 3 жыл бұрын

Thisss is true teaching. Thank you

@MichaelDiezFeed 3 жыл бұрын

Great video. As a computer engineer, I found it incredibly useful. The reason I found this video is because I ran into an issue with my Macbook Pro M1. If the free space in my 256GB is below approx 30GB, then the laptop slows down significantly when using memory-intensive programs. So I suspect it has to do with how TLC SSDs write information. What I think is happening is that the space in a TLC SSD is grouped into thirds. So if the drive is nearly full, then the write operation has to move 3-times the data. Something like that, too long to explain in a comment. Would you make a video explaining the write operation of TLC SSDs at nearly full capacity?

@foxboi6309 3 жыл бұрын

Trying to watch this with subtitles activated is a torture lol. Otherwise just focusing on the video itself is much more comfortable.

@johnousfredricson3146 3 жыл бұрын

aye if they taught like this at school i'ld be a doctor

@datorxodar4595 3 жыл бұрын

Very good video. Logical progression, clear explanations.

@tmd4951 2 жыл бұрын

This channel is Gold!

@comfortablydumb_ 3 жыл бұрын

Thank you a lot, very clear to understand and beautiful to watch thank to your awesome animation design. 👍

@chromosome24 3 жыл бұрын

For writes, you'd need just the right amount of current flowing through the channel for the right amount of time to get the right amount of electrons to tunnel to the trap. So write times would be dependent on bit sequence, where the bit sequence associated with the highest voltage quantization will take the longest to write. For example, 010, 100, 001 all have different write times even though each is only writing 1 bit.

@michaeljohn8905 Жыл бұрын

My mind has been blown 😮

@pratimpartha8888 3 жыл бұрын

EXCEPTIONAL LEVEL OF ANIMATION AND CONTENT...BEST EVER SEEN.....💖

@Ryuseigan 3 жыл бұрын

So complex and yet so simple for the end user.

@AJSquirrel53 3 жыл бұрын

The visuals here are just crazy cool

@diofajar9818 3 жыл бұрын

GREAT JOB , BRO , GO AHEADS , PEACE FROM JAKARTA INDONESIA

@harryholden795 3 жыл бұрын

Fantastic video. As a med student with 0 engineering background, I found this super easy to understand and loved the concise yet informative animations

@BranchEducation 3 жыл бұрын

Glad to hear!