A manufacturer of glass-to-metal, ceramic-to-metal, hermetic seals and feedthroughs

Complete Hermetics is a custom manufacturer of glass-to-metal, ceramic-to-metal, hermetic seals and feedthroughs. Our team has a wide range of knowledge to design and develop the hermetic connectors, hermetic packages, hermetic headers, vacuum viewports, hermetic seals and hermetic feedthroughs to fit your specifications. Our products and services include:

Our products are vital to many applications in defense, medical technology, semiconductor, energy and aerospace industries.

Complete Hermetics is proud to be a wholly owned subsidiary of Aegis Technology Inc., located in Santa Ana, CA since 2002, with extensive engineering, prototyping and manufacturing capabilities.


  • Complete Hermetics continues to meet our on time delivery needs and the company is able to quickly pull in a day when requested.  Furthermore, we have found Complete Hermetics to be very helpful and also very dependable.

    Primus Aerospace
  • We approached Complete Hermetics for development of customized hermetic connectors for use in a medical application.  The company’s team has provided excellent custom solutions and have been quite responsive to our needs.  Great company to do business with.

    St. Jude Medical
  • Complete Hermetics has been a great company to work with, and in our on-going projects, they have provided on-time delivery, high quality products, and in general we have been overall very satisfied with their attentive service to our needs.  Highly recommended.

    Broadley-James Corporation
  • Complete Hermetics is a great company to work with. They provide very good products with excellent technical and customer services as well. I highly recommend this company to everyone.

    Howard N.
    Project Manager
BAE Systems
Hamilton Sundstrand


Glass-to-Metal vs Ceramic-to-Metal Seals: Hermetic Seal Corporation

We at Complete Hermetics are proud to offer a diverse array of different seals and feedthroughs that make us stand out as a top-tier hermetic seal corporation. The type of seal that will be best for your needs depends on which industrial application you will be using it for. In this short article, you will…

The Quick Guide to Vacuum Viewports

When you have a vacuum system, the viewport is an optical component that provides energy transmission in and out of the system. These are hermetically sealed and ensure high-functioning. Here is what you should now. Vacuum Viewports Explained You may choose vacuum viewports when you can reach the target in the chamber in a straight…

Hermetic Sealed Connectors: Customization Considerations

Hermetic sealed connectors are important in regards to system integrity maintenance. These connectors may be used in aerospace operations or military. They may be used in gas-tight barriers and may have to withstand extreme pressures. It’s important that you can optimize your connectors to match your requirements. Environmental Factors  To customize hermetics, you must consider…

3 Rules for Choosing Hermetic Packages

Whether in medical, military, aeronautic or any myriad of settings, failure of hermetic headers can have catastrophic outcomes. How can you ensure that your hermetic packages are up to the challenge of your unique hermeticity needs? Here are three ideas to ensure your devices won’t fail. Hermeticity Testing Hermeticity testing primarily involves either fine leak…

Should You Consider Epoxy Vacuum Feedthroughs?

For years, designers and engineers were constrained to glass-to-metal and ceramic-to-metal feedthroughs. Epoxy has changed that. Today’s epoxy feedthroughs can conform in ways unfathomable with glass or ceramic. Learn some of the benefits of today’s epoxy vacuum feedthrough. Is it the right choice for your project? Flexibility One of the major benefits of epoxy electrical…

Understanding Hermetic Seal Types and Uses

A hermetic seal is known as a go-to choice for superior protection when it counts. Whether you require protection from air, gasses, moisture, soil or any other hazard, hermetic connections are the gold standards across many industries. But a seal protects best when it is the right seal for the job. Learn more about the…