The Creation of Hermetic Feedthroughs

Hermetic feedthroughs are designed specifically to all some substances or energy to pass from inside or outside a hermetically-sealed area to the other side. The feedthroughs must deliver both hermeticity and electrical isolation. They must be secure enough to prevent even the smallest degree of leakage while maintaining a powerful vacuum. There are three main types of hermetic feedthroughs: low voltage, water-cooled and RF (high frequency), and high-voltage feedthroughs. Applications for these items include furnaces, analysis equipment, satellite instrumentation, particle accelerators, and X-ray equipment.

How Is the Hermetic Seal Achieved?

How are hermetic feedthroughs achieved? When a glass-to-metal hermetic feedthrough is desired, industry leaders use high temperatures to melt glass to the point that they can be tightly bonded to metal. When done correctly, these feedthroughs can be used in applications such as those involved in electrical situations. These products are highly resistant to dramatic temperature changes, as well as fluctuations in pressure and humidity. Many of these products are plated to resist corrosion as well as improving the items capacity for wire bonding or soldering. Naturally, the pin and body formation of some hermetic feedthroughs require even tougher standards of excellence. This is the case for items destined to be found in medical equipment, especially used in diagnosis and sensing.

Choosing the Right Hermetic Feedthrough and Seal

Although you’ve developed a system that requires a hermetic feedthrough and seal, you may not have the knowledge and experience to fully know what type of system and materials should be used to be most effective when your product is in use. Our engineers specialize in hermetic feedthroughs and seals in many different industries to help you move forward with your project.

There are many different ways to create the vacuum and hermetic feedthrough. In a glass-to-metal seal, the methodology of design and development depend on multiple factors. There are plating capabilities which let the hermetic seal work better under different conditions. If your project operates under higher voltage or temperatures, a ceramic-to-metal application may the right product to fit your needs. Because we have worked with medical, military, optics, and aerospace organizations, we have the depth of knowledge to design a prototype to meet your specifications.

Discuss your project with our engineers to find the perfect hermetic feedthrough and sealing system that matches your industry. We design and manufacture custom products that work under specific conditions. Our products are tested before use to ensure the reliability of the seal and feedthrough. We understand that you need the materials to fit the scope and scale of the project while managing your budget. Contact us and let us help.