Patent ID: 6068685
Filing Date: 2000-05-30
Classification: B01D,C23C,C30B,Y10S

Abstract:
A semiconductor manufacturing system, comprising:a getter-based gas purifier coupled in flow communication with a gas distribution network for a semiconductor fabrication facility, said gas distribution network supplying purified gas to at least one wafer processing chamber in said semiconductor fabrication facility, wherein said gas purifier comprises:a getter column having a metallic vessel with an inlet, an outlet, and a containment wall extending between said inlet and said outlet, the getter column further having a first high melting point, nonmetallic liner disposed in the vessel such that at least some of the top portion of getter material disposed in said vessel is separated from the containment wall of the vessel and a second high melting point, nonmetallic liner disposed in the vessel such that at least some of the bottom portion of the getter material is separated from the containment wall of the vessel;a first temperature sensor disposed in a top portion of said getter material, said first temperature sensor being located in a melt zone; anda second temperature sensor disposed in a bottom portion of said getter material, said second temperature sensor being located in a melt zone.