D ong Fan is a Chinese entrepreneur who is the chairman of GigaDevice Semiconductor, a leading Chinese designer of computer memory chips. He has built his fortune at the forefront of China's ambitious push for self-sufficiency in the critical semiconductor industry. GigaDevice has become a major domestic player in a market that has been historically dominated by foreign companies.

The company is a fabless semiconductor firm, meaning it designs chips but outsources the manufacturing. It specializes in designing NOR flash memory, which is widely used in consumer electronics, mobile devices, and automotive applications. Under Dong's leadership, the company has grown into one of China's most successful and valuable chip design companies. It is publicly traded on the Shanghai Stock Exchange, and his stake in the company is the source of his wealth.