Custom Hermetic Feedthroughs
Multi-Pin Hermetic Feedthroughs and Electrical Bulkhead hermetic Feedthroughs
Glass-to-Metal Seals and Feedthroughs
Ceramic-to-Metal Seals and Feedthroughs

Complete Hermetics provides custom designed ceramic-to-metal seals and feedthroughs for applications where high operating temperatures, high voltage and harsh environments are required as compared to glass-to-metal seals. These seals are more labor-intensive that glass-to-metal and therefore take longer to produce. Complete Hermetics can work with you to design custom ceramic-to-metal hermetic feedthroughs and seals for all your applications and needs.

Complete Hermetics manufactures custom made ceramic-to-metal hermetic feedthroughs and hermetic seals. We specialize in ceramic-to-metal seals for high vacuum feedthrough and electrical feedthrough applications.

Contact Complete Hermetics for more information about unique solutions for ceramic-to-metal and ceramic-doped glass feedthroughs and seals.

Housing Materials Include:

  • NiFe Alloys & NiFeCO (Kovar)
  • 300 & 400 Series SST
  • Titanium
  • Aluminum Silicon Carbide (AlSiC)
  • Cu and Cu Alloys
  • Inconel
  • 42, 46, 49 Alloys


  • Alumina (Al2O3) 94%-99%
  • Aluminum Nitride (AlN)
  • Beryllium Oxide (BeO)


  • Kovar and Copper Cored Kovar
  • 52 Alloy
  • Inconel
  • Stainless Steels

Hermetic Seal Properties

  • Hermeticity: up to 1×10-9 atm cc/sec He
  • Working Temperature > 500°C depending on materials and geometry
  • Insulation Resistance: Typically exceeds 1 GΩ @ 100 VDC

Check out our glass-to-metal seals

Ceramic-to-Metal Seals
Ceramic-to-Metal Seals and Feedthroughs