Advanced Ceramic-to-Metal Seals and Feedthroughs for High-Temperature Performance

Why Ceramic-to-Metal Seals Are Superior

Ceramic-to-metal seals provide unmatched insulation strength, temperature resistance, and structural durability—making them ideal for systems exposed to extreme conditions. Unlike glass seals, ceramics retain mechanical and electrical stability at temperatures exceeding 500°C and remain intact during rapid thermal cycling. These properties make CTM seals indispensable in aerospace propulsion, medical imaging equipment, semiconductor fabrication tools, and scientific instrumentation.

Material Properties & Bonding Precision

Complete Hermetics uses high-purity alumina ceramics, metalized with tungsten-molybdenum or moly-manganese layers, to enable strong brazed joints with Kovar, titanium, or stainless steel housings. This combination allows ceramic-to-metal seals to achieve extremely low leak rates and high dielectric breakdown voltage. Optional plating—gold, nickel, or silver—improves conductivity, corrosion resistance, and long-term material stability.

Applications Across High-Temperature Industries

Ceramic-to-metal seals are essential in:

  • High-voltage power systems
  • Vacuum and plasma processing equipment
  • RF amplifiers and radar transmitters
  • Aerospace ignition and propulsion assemblies
  • Nuclear diagnostic sensors
  • Industrial heating and furnace control systems

Engineering Collaboration & Testing

Complete Hermetics works closely with engineers to determine ceramic thickness, dielectric spacing, pin configurations, and mounting styles tailored to each application. Every component undergoes helium leak detection, thermal shock testing, vacuum cycling, and electrical qualification to ensure longevity and reliability.

Contact Complete Hermetics

Count on Complete Hermetics for robust, precision-engineered ceramic-to-metal seals and feedthroughsyour trusted partner for extreme-environment reliability.

Custom Hermetic Solutions for Mission-Critical Applications

In high-stakes industries like aerospace, defense, semiconductors, and medical devices, custom hermetic solutions are not optional—they’re essential. The integrity of sensitive electronic systems depends on the performance of components that can resist moisture, gas, and extreme environmental conditions. That’s where hermetic seals and hermetic connectors come in—providing the airtight barrier necessary to ensure uninterrupted functionality in the harshest settings.

Engineered for Precision: Custom Hermetic Feedthroughs and Headers

Not all applications are the same, and neither are their sealing requirements. Complete Hermetics specializes in manufacturing hermetic feedthrough assemblies and hermetic headers designed for exacting specifications. Using materials such as Kovar, stainless steel, titanium, and aluminum, they offer glass-to-metal and ceramic-to-metal seals that meet rigorous performance standards. These materials not only deliver superior corrosion resistance and thermal durability but also maintain electrical isolation—an absolute must in high-reliability sectors.

Hermetic Connectors for Harsh Environments

From hermetic connectors that meet MIL-DTL-38999 specs to custom configurations in circular or rectangular formats, Complete Hermetics ensures connectivity without compromise. These connectors support a wide range of shell sizes and pin layouts, enabling seamless integration into aerospace control systems, satellite payloads, and advanced industrial automation setups. Each connector is leak-tested to meet or exceed helium leak standards, safeguarding your mission-critical assets against contamination and failure.

The Role of Hermetic Packages in System Longevity

Beyond connectors and headers, hermetic packages provide a complete enclosure solution for sensitive electronics. These airtight casings shield circuits and sensors from environmental hazards, including temperature fluctuations, vibration, and corrosive chemicals. Complete Hermetics crafts these packages with the same high standards that govern all of their hermetic product lines, ensuring consistent protection and performance.

Partner with Complete Hermetics Today

Whether you’re upgrading a defense system, designing advanced medical instrumentation, or building next-gen aerospace controls, trust Complete Hermetics for unmatched quality and customization in hermetic seals, hermetic feedthrough, hermetic connectors, hermetic packages, and hermetic headers. Their engineering team collaborates with you from concept to completion to deliver solutions that excel under pressure—literally.

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📞 Phone: 714-265-1238
📧 Email: info@completehermetics.com