The most prevalent type of flash memory is NAND. NAND memory is non-volatile, which means it keeps its data even if the power is switched off. NAND is not an abbreviation. Instead, the word refers to the boolean operator and logic gate "NOT AND." Only if both of its inputs are TRUE does the NAND operator produce a FALSE value. NAND flash memory is made up of an integrated circuit that stores data in memory cells using NAND gates.
Memory cells placed in a horizontal two-dimensional grid are used to design and construct 2D flash devices. By layering memory cells into vertical layers instead of a horizontal layer, 3D memory devices increase capacity and performance. This effectively increases the number of memory cells available for a given region, allowing a significantly bigger storage capacity to be achieved while requiring far less space.
3D NAND is a type of flash memory where memory cells with NAND gates are stacked vertically.
