SSD 1 Quiz
1. Type of memory cell found in SSDs
2. CTF cell stores 3 bits of information by
3. Very few electronics are a 111
4. Very few electrons are a 000
5. Once electrons are in a charge trap, they stay for years
6. When cell is erased
7. Memory cells can be stacked 100 layers tall and 40,000 columns wide and 50,000 rows down
8. Control gate selectors are used for layers and Bitline selectors are used for rows
9. V-NAND hold data in your smartphone and computer
10. Different levels of electrons are placed onto the
11. Which technology could only used a few levels of electrons
12. In 2020, how many levels of electrons could be stored
13. What’s the lowest level of electron charge
14. The V in V-NAND is for vertical
15. Control gates are attached to every layer of the V-NANDs “String”
16. At the top of the String is a
17. A string gets duplicated 32 times, giving us a ____.
18. An entire page of strings can be called ____.
19. When you duplicate the strings, you’re also duplicated the bitlines.
20. Duplicating rows 6 times gives you a ____.
21. CTF cells are stacked into ____.
22. Bitline selectors and Control gate selectors combine to make ____.
23. Reading and Writing is done at the rate of 63 blocks per second, AKA
24. 3 Parts of CTF Memory Cell (Besides Dielectric Barriers used to separate each section)
25. Dielectric barriers block electrons from passing but let electric fields to pass through
26. Core filler is in the center and is
27. Threshold voltage means
28. When gate voltage is below the threshold
29. Without the charge trap, the cell becomes a
30. To store 8 different levels of values, you need 8 different levels of
31. Every cell in a page shares a common ____.
32. Writing to a memory involves materials around 75-100 atoms thick
33. Is it possible to have 18 NAND Flash microchips on an SSD drive?
34. Can you find a stack of 8 die within 1 of a NAND Flash microchip?
35. How many planes are in each die
36. An SSD controller microchip is like ____.
37. What does the SSD controller microchip MAINLY interface with
38. What else can a SSD controller microchip interface with
39. The DRAM chips that the SSD controller microchip interfaces with act as a buffer for the
40. Memory Channels
41. The computer can tell the SSD controller to save data to a NAND chip page or multiple pages if the file is large
42. Your computers tells SSD to save data in unused sectors
43. Translation Table data order
44. Superpages are like a massive page from the combination of all the NAND Flash chips
45. In a memory cell, when you apply positive voltage to a gate…