Hermetic Ceramic Brazing Components

Hermetic Ceramic Brazing Components

No. Parameter Typical Specification
1 Ceramic Material Alumina (Al₂O₃), 95%,  99%
2 Ceramic Shape Tube, Ring, Disc, Insulator, Custom Geometry
3 Metallization Mo-Mn Metallization / Nickel Plating
4 Metallization Thickness 15–25 μm
5 Nickel Plating Thickness 8–10 μm
6 Brazing Material Ag-Cu, Ag-Cu-Ti or Customized Filler Metal
7 Brazing Temperature Up to 850°C
8 Leak Rate ≤1 × 10⁻¹⁰ atm·cc/sec
9 Customization OEM/ODM, Drawing & Sample-Based Production

Hermetic Ceramic Brazing Components

Hermetic ceramic brazing components are designed to prevent gas and moisture penetration through the ceramic-metal interface. They are particularly important in systems where leakage can compromise vacuum stability, insulation, or component lifetime.

Key Features

  • Hermetic ceramic-metal sealing
  • Low leakage performance
  • High electrical insulation
  • High-temperature resistance
  • Long-term environmental stability

Materials

Alumina is commonly used ceramic materials, while Kovar, stainless steel, copper, and other compatible metals can be selected for the metal side.

Quality Control

Hermetic assemblies can be evaluated using helium leak testing, while mechanical and dimensional inspection can be applied according to the project requirements.

Applications

Typical applications include vacuum feedthroughs, electronic packages, semiconductor equipment, X-ray tubes, high-voltage assemblies, and medical devices.

If your project has a specific helium leak-rate requirement, include the target value with your drawing so the sealing structure can be reviewed accordingly.