Sandisk Uses Nine-Chip Stack in Latest microSD Card

striderx

striderx

Well-Known Member
OP
Member
Level 2
Joined
Jun 16, 2007
Messages
239
Trophies
0
Location
USA
XP
245
Country
United States
Have you ever wondered how they cram so much memory into such a small package as a microSD card?

When you read about microchip memory capacity the units you see used in industry reports are most bits not bytes. To get bytes you need to divide that number by 8 -- 8bits/byte. I work in the industry and have often wondered how they get 16GB (gigabytes) of memory into a tiny microSDHC card. Click on the link below to find out how and see some cool pictures.

Sandisk Uses Nine-Chip Stack in Latest microSD Card

Holy schmenkies Batman! NINE chips stacked on one another! And wiredbonded together to boot. I'm humbled at what they're doing. OMFG!

When the author mentions that each chip has been thinned to less than 30µm (microns or millionth of a meter). It would take a stack of over 30 of those chips to make it one millimeter thick! Those chips are made on wafers 300mm in diameter (12 inches or roughly the size of an LP record or LaserDisc) that was orginally 725µm thick. It's then thinned using one of a number of techniques including grinding and plasma processing...

Impressive!
 
Anakir

Anakir

Project: Melee
Member
Level 3
Joined
Dec 20, 2006
Messages
2,257
Trophies
1
XP
353
Country
United States
Micro technology is amazing. I always wondered how they made something as small as your finger nail have the ability to store files as well.
 
bRKcRE

bRKcRE

Well-Known Member
Member
Level 3
Joined
Nov 1, 2008
Messages
380
Trophies
1
Age
39
Location
australia
XP
302
Country
Kamui said:
Pretty amazing..

Compare those with the HUGE hdd from 1990s...
Click to expand...


im sure u mean "physically huge"
tongue.gif


i guess the cost per MB has gone down considerably too since way back when:
15mb-hard-drive1.jpg
 
Daemon.nds

Daemon.nds

Well-Known Member
Newcomer
Level 1
Joined
Apr 10, 2009
Messages
90
Trophies
0
XP
54
Country
United States
If we all get a hard drive like that, then we would each be able to store over 50 images, or a whole song even.
 
TrolleyDave

TrolleyDave

Philosolosophising
Former Staff
Level 6
Joined
Jan 1, 2007
Messages
7,761
Trophies
1
Age
52
Location
Wales, UK
XP
933
Country
Day By Day said:
If we all get a hard drive like that, then we would each be able to store over 50 images, or a whole song even.
Click to expand...

lol You wouldn't have been able to store any songs on it, there was no MP3's back then. The song would have to have been stored as a very large uncompressed sample!
 

Site & Scene News

Go to forum More news

Popular threads in this forum

What dangers to human society might the future contain?

What is the more ethically-minded decision to make?

Got a crush on a nurse and it's kind of eating me up inside

I used Windows XP as a daily driver for a month in 2024, AMA

Question to old people.

Good jobs for a 14-year old

Which industry got you sinked in?

Tell me about your favorite regional food!

General chit-chat
Help Users
  • BigOnYa @ BigOnYa:
    Only one I liked was that mikes hard lemonade tea, but i couldn't drink it all day
  • Xdqwerty @ Xdqwerty:
    @K3Nv2, gonna make a jumping sprite
  • BigOnYa @ BigOnYa:
    You can add platform character behavior to any sprite, just disable the default controls for it, and make it jump/move in your code. The rectangle behavior is cool too for enemies.
  • Xdqwerty @ Xdqwerty:
    @BigOnYa, how is it cool?
  • Xdqwerty @ Xdqwerty:
    @BigOnYa, and i meant jumping sprite for the player
  • BigOnYa @ BigOnYa:
    It makes it move around constantly in different directions, like a enemy moving back n forth from one side to other
  • Xdqwerty @ Xdqwerty:
    @BigOnYa, and i dont think the rectangular movement behavior works for platform games
  • BigOnYa @ BigOnYa:
    Yea it does. And you can add platform character behavior to your own charcter, and it will have move and jump already setup for you, space bar is jump, arrows move
  • Xdqwerty @ Xdqwerty:
    @BigOnYa, i already added the platform character behaviour to the player since i started doing this
     +1
  • Xdqwerty @ Xdqwerty:
    @BigOnYa, and already set up animations for when he shoots both standing and walking
     +1
  • S @ salazarcosplay:
    @Xdqwerty you could
    add alcohol to the game too
  • Xdqwerty @ Xdqwerty:
    @salazarcosplay, one of the curative items has the internal name of "beer"
  • Xdqwerty @ Xdqwerty:
    although it looks like a coke can
  • S @ salazarcosplay:
    @Xdqwerty what is the game based on
  • S @ salazarcosplay:
    what was the inspiration
  • Xdqwerty @ Xdqwerty:
    @salazarcosplay, based on my ideas i'd say mega man games (probably mega man zero mainly)
  • S @ salazarcosplay:
    I had some ideas for megaman based game
  • S @ salazarcosplay:
    @Xdqwerty make people have their own character
  • S @ salazarcosplay:
    and be able to fight other players
  • S @ salazarcosplay:
    and co op
  • Xdqwerty @ Xdqwerty:
    @salazarcosplay, kind of like mugen or rivals of aether?
  • S @ salazarcosplay:
    yes
  • S @ salazarcosplay:
    and also ahve the option to play as a human
  • S @ salazarcosplay:
    or set it up that when you get injured past a certain point they have to replace your human parts with cybernetics
  • Xdqwerty @ Xdqwerty:
    i have a placeholder enemy sprite i made
    Xdqwerty @ Xdqwerty: i have a placeholder enemy sprite i made