Hermetic Feedthroughs
Our glass-to-metal and ceramic-to-metal hermetic seals offer a new level of electrical conductivity, preventing short circuits and ensuring stable electrical performance in Ultra-High Vacuum (UHV) and other challenging applications.
Feedthroughs for the most extreme environmental conditions
One of the most critical yet often overlooked components in any system where probes, sensors, electrodes, wires and other types of static elements need to pass through a pressure or environmental boundary, are feedthroughs. These need to provide a seal often under the most extreme environmental conditions. LouwersHanique’s unique joining technology and the application of preferred materials and material combinations ensure that functionality is guaranteed across a wide range of temperatures, from cryogenic to high temperatures. Contact our engineering team for further specifications.
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Why use glass and ceramics in feedthroughs
Hermetic feedthroughs with glass-to-metal and ceramic-to-metal seals, bring several advantages that boost their performance among various applications. These unique joining technology offers superior hermetic sealing and long lasting capabilities, which ensures long-term performance, reliability, airtight, vacuum-tight, and pressure-resistant barriers to prevent any leakage or contamination. Moreover, compared to metals, our glass and ceramic hermetic sealings are better suited for harsh environments, due to their high resistance to corrosion and extreme temperatures.
Explore our blog for more insights on glass and ceramic seals in hermetic feedthroughs and UHV applications.
Hermetic and electrical insulation
Thanks to years of experience, our engineers have accrued boundless know-how regarding the optimization of matching materials. Direct bonding of glass with various types of metal delivers unprecedented integration and unique high-performance functionality.
This process ensures a perfect seal that meets the strictest requirements for Ultra-High Vacuum (UHV) and Ultra Clean Vacuum (UCV) systems, providing reliable hermetic sealing and electrical insulation.
Design your own custom feedthrough
At LouwersHanique, we work hand-in-hand with our customers, from conceptualization to co-development, to deliver custom hermetic feedthroughs that align perfectly with their application requirements. Engineered for superior purity, low outgassing, and reliable performance, our feedthroughs are the perfect fit for vacuum and other intense operational environments.
Customers have the flexibility to customize every detail, including connector types, signals, pockets, fixation, bolts, and O-rings, while also choosing from standard sizes. Moreover, we also offer monolithic feedthrough solutions, including stainless steel flanges with an integrated bonded pin layout which are suited for a wide range of connectors (LEMO, Harting, Sub-D, etc.).
Typical solutions
- Glass-to-metal, ceramic-to-metal and glass-to-ceramic hermetic seals.
- Connector types - Sub-D , Micro-D, SMA, Push-Pull, SHY, RF, BNC, LEMO, Harting, Duwako etc.
- Flange types - ISO-KF, ISO-K, DN, CF, etc.
- Almost any combination is possible on a custom basis from multiple fiber, vacuum, coaxial, cryogenic, pressure, power, high voltage, optical, CAT 6 and many more.
Download our feedthrough brochure to discover our custom and standard hermetic feedthrough solutions.
Typical applications
- Ultra-High Vacuum systems (UHV).
- Micro-lithography.
- Scanning Electron Microscopes (SEMs).
- Mass spectroscopy systems.
- Cryogenic systems.
- Vacuum chamber systems.
- E-beam columns for metrology applications.
- Highly demanding offshore solutions.
- Non-magnetic products.
- Semicon wafer and reticle inspection systems.
Typical material combination
Our ceramic and metal material combinations are directly bonded using technical glass seals.
Metals
- SST 316L, 304L
- Alloy C22
- Tungsten
- Titanium
- Molybdenum
- Nickel alloys
Ceramics
- 97,6% Al2O3
- 99,5% Al2O3
- 99,7% Al2O3
- 99,8% Al2O3
- Zirconia
- Macor
- Zerodur
For alternative material combinations and custom-made solutions, please contact us.