73645037
Feb 17, 1987
Oct 31, 1989
PLASMA ETCHING AND DEPOSITION SYSTEMS, COMPRISING COMPUTERS, MICROPROCESSORS, AUTOMATIC CONTROLS, HIGH VACUUM CHAMBERS AND HIGH VACUUM PUMPING APPARATUS, ELECTRODES AND HIGH FREQUENCY PLASMA GENERATORS AND ASSOCIATED ANALYZERS USED IN THE MANUFACTURER OF INTEGRATED CIRCUITS, ELECTRONIC AND OPTICAL DEVICES
Electrical and Scientific Apparatus