Where Can You Find Hermetic Packages?

Electronic components can be quite fragile, which is why it’s important to shield them from unsuitable environments. One way to protect semiconductors and other devices from water and corrosive materials is with an airtight seal around the desired area. To keep technology functioning properly over the long haul, you can often find hermetic packages in some of the harshest conditions known to man.


As an object dives into the ocean, water exudes pressure as it tries to infiltrate the enclosure. When exploring the deepest regions of the sea in search of oil or exotic wildlife, electronic equipment takes a lot of abuse. To protect these sensitive components from damages, scientists trust hermetic packages to provide a watertight barrier.

Outer Space

 As satellites travel in an orbit and probes explore the outer reaches of the solar system, sophisticated equipment transmits information back to the planet. If a semiconductor requires a gas environment to function properly, hermetic packages can keep it from escaping into the vacuum of space.


 Your body is mostly water, which is why pacemakers and other implanted devices need to be sealed against fluid incursion. When your health is on the line, you can trust a tight seal to keep you alive.

Protection for Electronics

These are just a few uses for hermetic packages, but they’re the perfect solution whenever you need to shield sensitive components from harsh environments.

Nowadays, hermetic packages are offering solutions for high reliability and high performance applications so they are extensively used in aerospace, medical and commercial applications.

About Complete Hermetics

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.

Hermetic Connectors

Making the Right Connections with Hermetic Connectors

Hermetic connectors are a fact of doing business in many industries. This ubiquity sometimes overshadows the engineering wonders that are made possible by these pieces of technology. They make many of the technological that we take for granted today possible. Here are a few of the more prominent examples from some leading industries.


Medical science has come a long way in recent history. From heart transplants to MRI machines, things that past physicians only dreamed of are now commonplace. This is due in part to hermetic sealing technology designed for the medical industry. These connectors provide a pressure-resistant seal for various applications doctors and hospitals depend on. The unique glass, ceramic and metal construction provides the absolute best in failure resistance and durability. That’s important when lives are on the line.


This technology got its start in the military. With that in mind, it’s no surprise that most contemporary hermetic seal and connector manufacturers are well versed in Mil-Spec connections. These are featured on everything from submarines roving the depths of the oceans to the defense satellites keeping an eye on things in space.

Hermetic connectors are used for a lot more than just military and hospital equipment. If you need a specific connector, or if you have a situation that needs a special design, reach out to a manufacturer of hermetic sealed connectors today.

Glass-to-Metal Seals and Feedthroughs

When To Choose Glass-to-Metal Feedthroughs

Feedthroughs are an indispensable part of most commercial electrical applications and their accuracy is critical to its success. When working in aerospace, defense and other arenas where extreme conditions are the norm and high reliability is vital, feedthrough performance is even more vital. These are cases where glass to metal hermetic feedthroughs make the most sense. Here are a few other applications where glass-to-metal sealed feedthroughs are the ideal choice.

Medical Applications

Perhaps no environment could be tougher than the human body. When a device must be implanted, a glass-to-metal hermetic feedthrough is the best choice. This type of airtight feedthrough prevents diffusion of gasses and keeps electrical components from corroding when doing so could spell life or death.

Automotive Applications

If a sensor has ever triggered your vehicle’s check engine light, you know how important it is that they work properly. Glass-to-metal feedthroughs are ideal to ensure sensors measuring everything from flow to pressure can function properly.

Industrial Applications

Glass-to-metal seal feedthroughs are commonly used in critical industrial applications, blocking the effects of high temperature and damaging chemicals. In this case, hermetic feedthroughs can also prevent electronic failure caused by humidity or pressure.

Hermetic feedthroughs have countless applications in defense, medical, aerospace, and other fields. Glass-to-metal manufacturing creates the most reliable performance.

Circle Hermetic Connector

What Can a Hermetically Sealed Connector Handle?

A hermetically sealed connector is designed to deal with extreme conditions. That is the reason it is often used for military or industrial purposes. Astronauts and scuba divers may rely on these connectors to provide the best possible connection in the most unlikely places. Lives may literally depend on the strength of a seal, so that is why it is essential to choose the right connector.

Types of Hermetic Connectors

The kind of hermetically sealed connector you choose most likely depends on how secure you need the connection to be and whether you want a custom connector. A popular kind is a glass to metal connector that is made out of molten glass and is combined with metals. Ceramic to metal types are also available, and they require more time to produce, but can be custom-designed. Whatever material you select, the connector should provide the strong connection you need for any job.

Under What Conditions Can Hermetic Connectors Hold Up?

A hermetically sealed connector can hold up to extreme temperatures and below zero conditions. They should be able to withstand conditions in a spaceship and zero gravity or areas of high pressure. The connectors can also work in a vacuum and at the bottom of the sea. Simply put, hermetic connectors can handle just about anything.

Electrical Feedthroughs

Maintaining Hermetic Seals With a Glass-to-Metal Bond

It’s hard to imagine that a furnace and x-ray equipment using some of the same technology, but electrical feedthroughs are vital to many different applications which require a hermetic seal with an electrical feedthrough that prevents even the tiniest amount of leakage in the vacuum. When your business needs a prototype that has been tested and retested for your project, Complete Hermetics has the engineers who can make it happen.

For glass-to-metal seals, we heat glass to its molten state, then its wetted to the metal to create the bond. Our production team carefully measures the thermal expansion of the glass to prevent breakage during its use. Glass seals are more resistant to the temperature changes during use than an O-ring or epoxy seal. We can also match the use of the glass-to-metal seal to your electrical feedthrough, making your system more efficient and secure under stringent conditions.

Glass-to-metal seals and electrical feedthroughs can have plating to help them resist corrosion and increase the soldering capabilities. With so many options for the seal, you can get the exact specifications that meet your application. Our engineers specialize in creating hermetic seals and electrical feedthroughs. You know what you need your product to do. Let us help you make it happen by producing the parts that make it work.

Glass-to-Metal Seals

Creating the Hermetic Sealing for Your Application

It used to be difficult to get an airtight seal for distillation and other processes. Today’s technology makes hermetic sealing much easier to attain, when you have the right engineers behind your development team. Although many companies attempt to use an O-ring or epoxy to get the hermetic seal, there are other processes which work more effectively in certain applications. We know how to find the right product for your project.

Our team of engineers works with you to find the right combination of materials that will meet your specifications. Glass-to-metal seals are extremely effective under some conditions, but higher heat or voltage may require a ceramic-to-metal hermetic sealing solution. When you need the chemicals and gases to be airtight in your application, let us help develop the right seal. We test each product to ensure its reliability and results before use.

Finding the right solution for each application is right in our wheelhouse. Our engineers specialize in creating hermetic sealing for specific projects and prototypes to meet the individual specifications of each product. We’ve worked with many industries, for example, aerospace, pharmaceutical, and military. Our engineers use the latest technology and tools to design and develop hermetic sealing products to fit your needs. Let us work with your team to get your project moving forward.

Understanding Electrical Feedthroughs

Glass-to-metal seals are more effective than O-rings and epoxy when it comes to maintaining an hermetic seal. Sometimes, glass isn’t effective at high voltage or high operating temperatures. The solution is a ceramic-to metal seal and electrical feedthrough. Although there is more labor and time involved in creating this type of seal, it will work under harsher conditions than the glass-to-metal seal might.

Our engineers specialize in ceramic-to-metal seals and electrical feedthroughs to match your specifications. We design and develop prototypes and manufacture products which provide a tight seal. Every item is tested and retested to ensure its properties and effectiveness for use. We have multiple options for insulators, conductors, and housing materials to fit the industry in which it will be used. Using the right products makes the difference in the end not only in effectiveness, but in your bottom line.

Electrical feedthroughs are vital to many applications in medical technology, defense, satellites, and optics. Our team has a wide range of knowledge to get the job done right. Together, your developers and ours can make sure your product works like it should every time. You know what you need, but not how to create it. We have the know-how to design and develop the hermetic seal and electric feedthrough to fit your specifications. Let us work with you to make your project move forward by contacting us.

Custom Hermetic Feedthroughs

Hermetic Seals Company Customization

A hermetic seals company creates packaging technology that is designed to be airtight, moisture-tight and gas-tight. They are a highly reliable for harsh environments and help extend the life of interconnect technology inner workings. These tightly sealed packages help protect delicate components while also providing an interconnect. A hermetic seals manufacturer makes custom glass-to-metal and ceramic-to-metal seals and feedthroughs suitable for a variety of applications.

Quality Matters

Packaging of electronic systems must take into consideration many factors. These factors may include

  • Protection from mechanical damage
  • Protection from electrostatic discharge
  • Operator convenience
  • Cooling
  • Maintenance

High quality materials are vital for glass-to-metal and ceramic-to-metal seals. Working with a professional hermetic manufacturer ensures that any recommendations are based on many years of experience.

Working With Professionals

When it comes to quality, a professional hermetic seals company is a necessity. Hermetic glass/metal cases started with the vacuum tube industry. They provide a totally leak-proof housing. The glass-seal electrical feedthrough prevents leakage even under extreme changes in temperature, humidity and pressure.

Hermetic ceramic/metal packages are more convenient than their glass/metal counterparts for some products while performing just as well. They can be divided into two main types: pressed ceramic packages and multilayer ceramic packages.

Talk to the professionals when it comes to hermetic packaging. They can help you find the right materials for the job and create custom products that fit your needs.

When to Use Ceramic Feedthroughs

Engineers are often tasked with the job of creating seals around ceramic feedthroughs. Sometimes the seal is as simple as an epoxy or glue. For those situations that require a stronger seal, a mechanical or glass seal is necessary. The ceramic feedthrough is often a vital part of the seal and is used in situations where the highest performance is expected.

The Advantages of Ceramic vs. Glass

Ceramic feedthroughs offer some important benefits, superior resistance to both mechanical and thermal shock, an ability to resist corrosion, and protection from leaks. Glass can resist the effects of temperature changes, fluctuating pressure, and variations in humidity. Ceramic, however, provides better performance. Ceramic-to-metal applications require complicated engineering and typically comes at a higher cost.

Who Uses Ceramic Feedthroughs?

There are some industries that require the high level of performance delivered by ceramic feedthroughs. These industries include the aerospace market, medical implant device manufacturers, and industries using high voltage or current laser applications.

Look for Providers of Great Quality Feedthroughs

Manufacturers can protect the components of the glass and ceramic feedthroughs by working with internally-sourced ceramics and other materials. It’s important to learn how to recognize the best types of hermetic seals and feedthroughs; working with knowledgeable manufacturers can help. You can protect the integrity of your project by choosing top-quality ceramic feedthroughs from reputable providers.

Getting the Right High Vacuum Feedthrough

A hermetic feedthrough must be secure enough to prevent leakage, even the smallest amount. It has to maintain a vacuum under certain conditions, which are different for every application. Fortunately, there are three main types of feedthroughs which operate in hermetic vacuums:

  • Low voltage
  • Water-cooled and RF
  • High-voltage

We have the experience to design and develop a high vacuum feedthrough to achieve the proper hermetic seal for your application. Let us work within your specifications to create what you need to move forward with your system.

Attaining a hermetic seal with a high vacuum feedthrough can be done using a glass-to-metal or ceramic-to-metal design. The properties of your project and its use will determine the best materials for its design. We have multiple options to meet the standards of excellence in your industry. Our engineers specialize in developing the right hermetic system to fit your needs.

Because we have worked with many different industries, we know how to create the product that fits medical equipment or satellite systems. Our engineers have worked with the military, aerospace development, and pharmaceutical companies. Every hermetic system with a high vacuum feedthrough is tested before use to ensure quality control. Whether you’re looking for a prototype or manufacturing of multiple hermetic seals, our team can make it happen.