Feedthrough technology

MST offers the development and manufacture of customer-specific feedthroughs for implants or sub-assemblies requiring hermetically sealed interfaces.

Three base technologies are available for countless solutions.

Ceramic-to-metal feedthroughs

• typical application: medtech implants such as pacemakers, defibrillators or neurostimulators
• material compositions: Ti/Al₂O₃/Nb or Ti/Al₂O₃/PtIr
• geometry: circular or linear
• unipolar to multipolar pin configurations
• contacting through welding or soldering
• filtered versions on request

Glass-to-metal feedthroughs

• typical application: batteries for implants
• material compositions: 304L/FeNi52 or 304L/Mo
• unipolar to multipolar pin configurations
• contacting through welding or soldering

Hybrids: glass/ceramic-to-metal feedthroughs

• typical application: sensors or high-vacuum components
• customized material compositions
• unipolar to multipolar pin configurations
• contacting through welding or soldering

The core areas of expertise for developing and manufacturing hermetic feedthroughs include:

• materials science
• design and process engineering
• wet chemical conditioning
• high-vacuum metallization (sputtering)
• high-temperature/high-vacuum soldering of glass
• high-temperature soldering using gold
• resistance welding
• micro sandblasting
• assembly
• mechanical and physical testing of components and materials
• hermeticity testing
• visual inspection

For further information or to ask us to help you work out a specific solution, please get in touch with us.