Memory Device

[Summary] The internal memory can be divided into random memory RAM (RandomAccess Memory) and read-only memory ROM (Read Only Memory), and its binary operation is achieved through the on-off of the transistor. For different types of memory, the structure and connection methods of their transistors are also different. Therefore, TEM/AFM/SMM/SSRM, etc. are often used in the process to characterize the structure and carrier distribution of PMOS and NMOS regions.