Dispenser cathode assemblies and Electron Guns are used in vacuum tube applications for military and commercial systems or in other electron stream applications. Semicon specialists support a wide range of design options that extend beyond traditional cathode geometry.

Designs include mounting structures, ceramic high voltage standoffs, focus electrode and Electron Gun structures with high mechanical and vacuum integrity. Electron Gun assemblies are built for the microwave, ion laser and CRT cathode markets. Processes include precision machining and assembly, controlled induction and furnace brazing, resistance and laser welding and high vacuum leak checking.

Structural materials consist of metalized alumina ceramics, refractory metals, iron-based alloys such as Kovar and stainless steels, and nickel based alloys such as Monel and Hastelloy. Moly-nickel, copper, copper-gold alloys and palladium-nickel braze materials can be applied to components of various geometries and sizes.

The use of Semicon Electron Guns assures higher yields and lower costs for the end user. The assemblies allow customers to focus on core business by freeing up technical resources. Cycle times are reduced and pre-tested assemblies delivered.

Electron Guns