Vacuum Feedthroughs for High-Integrity Sealed Systems

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Why Vacuum Feedthroughs Are Essential

Vacuum feedthroughs allow electrical, optical, fluid, or mechanical transfer into or out of a sealed vacuum chamber without compromising the chamber’s integrity. They are crucial in semiconductor processing equipment, scientific research instruments, aerospace simulation chambers, and industrial high-temperature vacuum furnaces. Even the slightest leak can affect process quality, research accuracy, or equipment performance—making hermetic sealing absolutely essential.

Design Requirements for High-Vacuum Environments

Vacuum feedthroughs require materials that tolerate thermal expansion, pressure gradients, plasma exposure, outgassing, and radiation. Complete Hermetics engineers each feedthrough using precision glass-to-metal or ceramic-to-metal bonds calibrated to maintain ultra-low leak rates under severe operating conditions. These feedthroughs maintain performance from cryogenic to extreme high-temperature environments.

Configurations & Materials

Options of vacuum feedthroughs include:

  • Single-pin & multi-pin electrical feedthroughs
  • RF coaxial or SMA-style vacuum feedthroughs
  • High-current power feedthroughs
  • Thermocouple & instrumentation feedthroughs
  • Vacuum optical feedthroughs for sensors & lasers

Materials such as Inconel, titanium, stainless steel, and engineered ceramics ensure mechanical stability and long service life.

Applications in High-Tech Sectors

Vacuum feedthroughs support:

  • Plasma etching & PVD/CVD semiconductor tools
  • Space environment simulation chambers
  • Ion beam accelerators & laboratory research equipment
  • Industrial furnaces & metallurgical processing
  • Aerospace test stands requiring high vacuum integrity

Testing & Verification

Every feedthrough undergoes low-helium-leak testing, electrical resistance measurement, thermal cycling, and long-duration vacuum compatibility validation. These processes guarantee reliability in systems where contamination or pressure loss cannot be tolerated.

Contact Complete Hermetics Today for Your Hermetic Solutions

Complete Hermetics provides high-performance vacuum feedthroughs and hermetic sealing technologies. From glass-to-metal or ceramic-to-metal configurations, each feedthrough is engineered with exacting precision to meet your application requirements.