Why Do Vacuum Gauge Anode Assemblies Use Ceramic-to-Metal Structures? Insulation and Joining Design for High Vacuum

Vacuum Gauge Anode Assembly

In systems such as vacuum coating, semiconductor equipment, vacuum furnaces, and scientific research instruments, vacuum gauges are used to monitor the pressure status inside the equipment. For some cold cathode vacuum gauges, the anode assembly is one of the important functional components inside, and its structural accuracy, insulation performance, and the connection quality between components will all affect the stability of the component’s operation.

Unlike ordinary metal electrodes, the anode assemblies of vacuum gauges usually need to simultaneously meet requirements such as high-voltage conductivity, electrical insulation, precise positioning, adaptation to the vacuum environment, and reliable connection. Therefore, the combination of alumina ceramics and metal components has become a common structural solution for such components.

The vacuum gauge anode assemblies currently provided by INNOVACERA adopt an alumina ceramic insulation structure, combined with anode pins, metal sealing components, high-voltage lead-out electrodes, and discharge plates as functional components. Through precise assembly and vacuum brazing processes, a complete anode assembly is formed, which can be used for vacuum gauge maintenance, refurbishment, and related applications.