According to whether data can continue to be stored in the device after power loss, storage chips can be divided into volatile and non-volatile types.Volatile storage chips mainly include Static Random Access Memory (SRAM) and Dynamic Random Access Memory (DRAM).Non-volatile memory mainly includes Programmable Read-Only Memory (PROM), Flash Memory (Flash), and Erasable Programmable Read-Only Memory (EPROM/EEPROM), etc.
NAND Flash and DRAM are the largest segments in the semiconductor memory market.

According to data from the fourth quarter of 2024, the top five global NAND Flash manufacturers (Samsung, SK Hynix, Kioxia, Micron, Western Digital) collectively hold 92.7% market share.
Domestic Enterprises and Business Layout
Domestic NAND Flash manufacturers still hold a nascent position in the global market, Yangtze Memory Technologies is the most representative design and manufacturing enterprise in China, having achieved mass production of 3D NAND, but is constrained by external supply chain limitations, facing challenges in capacity ramp-up and global market share increase.
Risk Warning:The above content is for reference only and does not constitute investment advice.