Patents Assigned to ASM VT, Inc.
  • Patent number: 5336325
    Abstract: An enhanced vertical thermal reactor system provides three isolated chambers including a wafer handling chamber, a process chamber including an elevator, and a cool down chamber, each sealed from the other. The sealing of these individual chambers, each from the other, has the effect of minimizing processing delays associated with the cooling process and the loading and unloading process to thereby improve the productivity of the furnace. The process chamber includes non-metallic media such that it can be operated in oxidation systems so that corrosive acids will not affect the process chamber operation.
    Type: Grant
    Filed: January 18, 1991
    Date of Patent: August 9, 1994
    Assignee: ASM VT, Inc.
    Inventors: John J. Devilbiss, Steve Lugosi, Robert G. Ozarski
  • Patent number: 5254170
    Abstract: An enhanced vertical thermal reactor system provides three isolated chambers including a wafer handling chamber, a process chamber including an elevator, and a cool-down chamber, each sealed from the other. The sealing of these individual chambers, each from the other, has the effect of minimizing processing delays associated with the cooling process and the loading and unloading process to thereby improve the productivity of the furnace.
    Type: Grant
    Filed: August 7, 1989
    Date of Patent: October 19, 1993
    Assignee: ASM VT, Inc.
    Inventors: John J. Devilbiss, James A. Glaze, Steve Lugosi, Allen D. McNaughton, Robert G. Ozaraki