SEMICONDUCTOR MEMORY DEVICE AND SYSTEM HAVING STACKED SEMICONDUCTOR LAYER

摘要

PURPOSE: A semiconductor memory device and system is provided to improve working speed of the system by storing store bulk digital media data in the same memory as system data and to reduce manufacturing costs. CONSTITUTION: Semiconductor layers have a same memory cell structure. A first memory domain(1100) comprises a semiconductor layer for storing system data. A second memory domain(1200) comprises the other semiconductor layer for storing data except for the system data. The system data comprises one or more data which are selected from a data group. The data group comprises a booting code, a system code, and application software. Each semiconductor layer of the first memory domain is a semiconductor layer in which a defect bit does not generated.