Understanding How SSDs Work

The video provides an overview of how solid-state drives (SSDs) work, focusing on their ability to store large amounts of data in a small microchip. It explains the concept of charge trap flash memory cells, which store data by trapping electrons. The video describes the 3D structure of these memory cells, which are stacked and copied to achieve high storage capacity. Engineers further maximize storage by replicating this structure within the microchip. The video concludes with an invitation to watch a follow-up episode for a deeper understanding.

How much data can most smartphones store?

• 64 gigabytes

• 128 gigabytes

• 256 gigabytes

• 512 gigabytes

How long would it take to watch all the movies and TV shows stored on a 1 terabyte SSD?

• 1 week

• 2 weeks

• 3 weeks

• 4 weeks

What is the name of the memory cell used in SSDs?

• Charge trap flash

• Floating gate flash

• Dynamic RAM

• Static RAM

How many bits of information does a charge trap flash memory cell store?

• 1 bit

• 3 bits

• 2 bits

• 4 bits

What happens to the electrons when a memory cell is erased?

• They are duplicated

• They are measured

• They are forcibly removed

• They are trapped

How many layers tall are the memory cells stacked in an SSD?

• 125 layers

• 100 layers

• 75 layers

• 50 layers

How many columns across are the stacks of memory cells copied?

• 10,000 columns

• 20,000 columns

• 30,000 columns

• 40,000 columns

What is used to isolate and determine which row and layer to write to or read from?

• Bitline selectors

• Memory selectors

• Control gate selectors

• Data selectors

How many times is the layout of memory cells copied to fit more capacity?

• 8 times

• 4 times

• 10 times

• 6 times

What is the size of the microchip that can store 3 weeks of non-stop binging movies and TV shows?

• The size of a penny

• The size of a dime

• The size of a nickel

• The size of a quarter