Patent ID: 6232204
Filing Date: 2001-05-15
Classification: B01D,C23C,C30B,Y10S

Abstract:
A method of making an integrated circuit device, comprising:purifying a gas in a getter-based gas purifier to obtain a purified gas, said gas purifier comprising:a getter column having a metallic vessel with an inlet, an outlet, and a containment wall extending between said inlet and said outlet;getter material disposed in said vessel;a first temperature sensor disposed in a top portion of said getter material, said first temperature sensor being located a distance below a top surface of said getter material, said distance being from just above 0 inch to just below 3 inches; anda second temperature sensor disposed in a bottom portion of said getter material, said second temperature sensor being located a distance above a top surface of said getter material, said distance being from just above 0 inch to just below 3 inches;supplying said purified gas to at least one wafer processing chamber; andprocessing a semiconductor wafer in said at least one wafer processing chamber to obtain an integrated circuit device.