NAND Flash chip is a type of flash memory chip that uses NAND storage logic and is non-volatile and the stored data remains unchanged for a long time. It adopts non-linear macrocell mode internally, providing a cheap and effective solution for the realization of solid-state large-capacity memory. In addition, NAND Flash memory uses floating-gate transistors and can store information without power. All circuits rely on some kind of energy to create a difference in charge across the battery. This energy forces electrons through the gate. The floating gate system of NAND flash memory works by using a second gate to collect and store electrons as they pass through the battery. Capturing some electrons, this allows the electrons stuck to the floating gate to stay in place without voltage, allowing the chip to continue storing the next value regardless of whether there is a power connection. In general, NAND Flash chip is a large-capacity, high-reliability memory chip that is widely used in computers, consumer electronics, security equipment, automotive electronics and other fields.