NONVOLATILE SEMICONDUCTOR MEMORY DEVICE

摘要

PURPOSE: A nonvolatile semiconductor memory device is provided to reducing costs by simultaneously forming laminate memories. CONSTITUTION: A nonvolatile semiconductor memory(110) a 3D laminated flash memory. The nonvolatile semiconductor memory comprises a memory unit. The memory unit and a controller are formed on the main surface(11a) of a semiconductor substrate(11) which is formed with single-crystal silicon. A circuit unit is formed on the semiconductor substrate.