Rader, Fishman & Grauer PLLC
Plasma generating apparatus using microwave
The present invention uses as a detector for adjustment measurement, monodyne interference between a microwave for plasma generation and the reflected wave. Analysis of the interference wave that is obtained using monodyne interference allows finding of the phase difference between the incident and the reflected wave and the amplitude of that reflected wave; and controlling of an excited microwave generation/control system based on them allows impedance matching between the excited microwave and the plasma. This method allows very high precision phase detection, and calculation of the characteristics of the plasma based on the detected phase shift. Therefore, it is possible to distinguish noises even in the vicinity of the matched region.
Japan Science & Technology Corporation
H H H H
H01J H01J H01J H05H
inventional inventional inventional inventional
Hiroaki Yasushi Noboru
Ito Nishida Yugami