ULTRA CLEAN HOLDINGS INC
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Ultra Clean Holdings, Inc. engages in the development, manufacture, and supply of gas and liquid delivery subsystems for the semiconductor capital equipment industry. The company develops, designs, prototypes, engineers, produces, and tests gas delivery systems that enable the precise delivery of specialty gases used in the semiconductor manufacturing process, including deposition, etch, chemical mechanical planarization, cleaning, and annealing. Its gas delivery products control the flow, pressure, sequencing, and mixing of specialty gases into and out of the process chambers of semiconductor manufacturing tools. The company's gas delivery system consists of one or more gas lines, comprised of filters, mass flow controllers, regulators, pressure transducers and valves, associated interconnect tubing, and an integrated electronic and/or pneumatic control system. It also manufactures and delivers other sub-assemblies related to original equipment manufacturers wafer processing equipment, which include frame assemblies and chamber top plates. The company sells its products primarily to original equipment manufacturers of semiconductor capital equipment in the United States and internationally. The company was incorporated in 1991 and is headquartered in Menlo Park, California. Ultra Clean Holdings, Inc. is a subsidiary of FP-Ultra Clean LLC.