acm research, inc., together with its subsidiaries, develops, manufactures, and sells single-wafer wet cleaning equipment for enhancing the manufacturing process and yield for integrated chips worldwide. it offers space alternated phase of megasonic waves to deliver megasonic energy to flat and patterned wafer surfaces in a uniform manner on a microscopic level; timely energized bubble oscillation cleaning equipment for two-dimensional and three-dimensional patterned wafers at advanced process nodes; and single-wafer tools for back-end assembly and packaging equipment, as well as electro-chemical plating equipment for advanced metal plating. the company markets and sells its products under the ultra c brand name through direct sales force and third-party representatives. acm research, inc. was founded in 1998 and is headquartered in fremont, california.