“…A complete NAND flash memory chip is mainly composed of flash memory particles and CMOS peripheral circuits. At present, the construction of CMOS peripheral circuits mainly includes the following three ways: CMOS next Array (CnA) [1], [2], CMOS under array (CuA) [3], [4] and Xtacking [5], [6]. But no matter which way it is, the NAND flash array and peripheral circuits need to be prepared on different layers and by different processes.…”