ELECTROGLAS

[ DIFFUSION FURNACES AND FURNACE CONTROLLERS FOR LABORATORY APPLICATIONS, ] AUTOMATIC AND MOTORIZED WAFER PROBERS AND COMPONENTS THEREOF, OPTICAL MASK ALIGNMENT DEVICES, INTERFEROMETERS, [ DIFFUSION ACCESSORIES, INCLUDING DIFFUSION DOPING DEVICES, OXIDE DEVICES CAPABLE OF OXIDE GROWTH FROM WET OR DRY GASES, QUARTZ DIFFUSSION BOATS, SOURCE BOATS AND FURNACE TUBES, ] SPLIT FIELD MICROSCOPE AND EXPOSURE SYSTEMS, MICROSCOPE ILLUMINATORS, [ WAFER PROCESSING EQUIPMENT, ] AND STEPPING MOTOR CONTROL SYSTEM