204450 ⎘
Details of electrodes, of magnetic control means, of screens, or of the mounting or spacing thereof, common to two or more basic types of discharge tubes or lamps; Main electrodes; Solid thermionic cathodes Circuit arrangements therefor, e.g. for temperature control
Method for tuning work function using surface photo voltage and producing ultra-low-work-function surfaces, and devices operational therewith
#2Estimation of cathode space current for a thermionic vacuum tube using a polynomial based on a heuristically determined variable representing the grid and plate voltages
#3ELECTRON BEAM SOURCE AND THE USE OF THE SAME
#4Apparatus and methods for capacitively coupled plasma vapor processing of semiconductor wafers
#5High frequency cathode heater supply for a microwave source
#6Cathode heating device of magnetron, microwave generating device and method of preheating cathode of magnetron
#7ELECTRONIC TUBE
#8Filament assembly having reduced electron beam time constant
#9Apparatus and methods for capacitively coupled plasma vapor processing of semiconductor wafers
#10Stabilized emitter and method for stabilizing same
#11Method for tuning work function using surface photovoltage and producing ultra-low-work-function surfaces, and devices operational therewith
#12Method of making and use of an automatic system to increase the operating life of vacuum tubes with a vacuum tube device