what is made of nand flash chip

A NAND flash chip is made of a series of memory cells, each consisting of a floating gate transistor and a control gate transistor. These cells are arranged in a grid-like pattern and connected to a series of word lines and bit lines. The floating gate transistor stores a charge that represents a binary value (0 or 1), while the control gate transistor controls the flow of electrons to and from the floating gate. The entire chip is typically housed in a small plastic or metal casing with electrical contacts for connection to a circuit board.