ACM Research, Inc. engages in the development, manufacture, and sale of single-wafer wet cleaning equipment. It supplies process solutions that semiconductor manufacturers can use in numerous manufacturing steps to remove particles, contaminants and other random defects, and thereby improve product yield. The company tools can be used in fabricating foundry, logic and memory chips including dynamic random-access memory, or DRAM, and 3D NAND-flash memory chips. The company was founded by David H. Wang and Hui Wang in January 1998 and is headquartered in Fremont, CA.