Density in SSD

[life24]

Hi,
What means density in SSD?
For example:

For
MLC devices, this erasure limit is typically rated at 5,000
to 10,000 cycles per block. As flash bit density continues to
increase, the erasure limit is expected to decrease as well

 

[Cerb]

The flash cells get made smaller over time, fitting more on a single die.

Today, we're down to 3,000 to 5,000, instead of 5,000 to 10,000, due to the flash cells getting smaller, and that it was a big deal that they were able to shrink the NAND without further decreases in write endurance, since it's been on about 3,000 for typical consumer MLC for more than one process.

 

[life24]

Thanks,but What means density in SSD?

 

[dave_the_nerd]

Thanks,but What means density in SSD?

The flash cells get made smaller over time, fitting more on a single die.

The more stuff in the same space, the more density.

In the context of SSDs, it's directly related to the process size of the flash/NAND. (14nm, 19nm, 21nm, etc.) The lower the number, the smaller the transistors, and the higher the density.