AVS 46th International Symposium
    Vacuum Technology Division Wednesday Sessions

Session VT-WeM
Vacuum Pumping Systems

Wednesday, October 27, 1999, 8:20 am, Room 610
Moderator: B.R.F. Kendall, Elvac Laboratories


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Click a paper to see the details. Presenters are shown in bold type.

8:20am VT-WeM1
Affect on Pumping-Speed Measurements Due to Variations of Test Dome Design Based on Monte-Carlo Analysis
S.B. Nesterov, Yu.K. Vassiliev, Moscow Power Engineering Institute, Russia, R.C. Longsworth, IGC-APD Cryogenics, Inc.
8:40am VT-WeM2
A Highly Simplified and Reliable Means of Regenerating Closed-Loop Gaseous Helium Cryopumps
D.W. Crone, J. Brady, M.O. Foreman, Ebara Technologies Inc., K.M. Welch, Consultant
9:00am VT-WeM3 Invited Paper
Review of Pumping by Thermal Molecular Pressure
J.P. Hobson, National Vacuum Technologies Inc., Canada, D.B. Salzman, Polychip Inc.
9:40am VT-WeM5
Inner Pressure Measurement of Turbo Molecular Pump
H.-P. Cheng, R.-Y. Jou, J.-C. Lin, F.-Z. Chen, Y.-W. Chang, Precision Instrument Development Center, National Science Council, Taiwan, ROC
10:00am VT-WeM6
Measurement of Axial Pressure Distribution on a Rotor of a Helical Grooved Molecular Drag Pump
T. Sawada, W. Sugiyama, Akita University, Japan, K. Takano, Mitsui Zosen Ltd., Japan
10:20am VT-WeM7
An MHD Plasma Vacuum Pump
E.S. Ensberg, Microwave Plasma Products, Inc.
10:40am VT-WeM8
Stable Sputter Ion Pump Design
J.B. McGinn, FEI Company
11:40am VT-WeM11
Dry Vacuum Pumps for Semiconductor Processes - Guidelines for Primary Pump Selection
P.A. Lessard, Varian, Inc.