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This photo illustrates the variety of styles and configurations
of glass-to-metal seals that Tekna Seal manufactures. Each
hermetically sealed part is manufactured to meet a customers
unique requirements and specifications. Shown are examples
of components simultaneously brazed during glass to metal
sealing, features cast in the glass, oriented "dog-legged"
pins and a variety of other pin/tube configurations.
Tekna Seal has developed improved technology to fabricate
optically clear windows for the hermetic packages used to
protect photonic devices. For the first time, high performance
optical glasses can be hermetically bonded to a metal frame
suitable for welding or soldering to the body of a hermetic
package.
Ceramic to metal brazing is available for implantable medical
devices and high-temperature applications. Ceramic also
offers high voltage isolation with low leakage current.
Standard materials include:
• Alumina brazed with alloys or pure Gold
• Kovar, Titanium or stainless steel bodies
• Platinum, Pt-Iridium, Tantalum, Niobium as well as
traditional pin materials
Hermetic packages used in electronic and photonic applications
often require complex geometry for the alignment of critical
components. Metal Injection Molding (MIM) provides an economical
way to fabricate these packages from controlled expansion
metals. The Tekna Seal Oxide-Free glass sealing process
seals well to the MIM alloys, providing levels of hermeticity
greater than the industry standards for packages made from
wrought alloys.
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Hermetically
Sealed Optical Windows
Ceramic
to Metal Seals