.: Ceramic-to-Metal Hermetic Seals
Metalized ceramic and metal components are joined in one of many brazing furnaces. Assembled in precise fixtures, the components are run through high-temperature furnaces and become a final assembly. At this point a strong, permanent hermetic bond is achieved.
Specialty Ceramic Seals
LATRONICS produces made-to-order ceramic-to-metal seal assemblies. Sales, engineering, and production teams successfully coordinate the transformation of engineered designs into precisely manufactured ceramic-to-metal seals. LATRONICS engineering staff can incorporate various materials into sophisticated designs. Some products are high-volume while others are for unique applications with low-volume production requirements. LATRONICS has engineered and manufactured specialty ceramic-to-metal seals for
the nuclear, aerospace, aviation, defense, medical,
and automotive industries.
Schematics, Technical Data Sheets
High-powered Semiconductor Housing
Flexibility and advanced facilities make LATRONICS one of the world's leading suppliers of high-power semiconductor housings. The continued need for diodes, thyristors, gate turn-off (GTO) devices and IGBT press pack housings permits growth within the high-power semiconductor industry.
LATRONICS specializes in mass production of high-power semiconductor housings.

All housing packages at LATRONICS are manufactured to meet each customer's requirements. We also offer quality technical assistance in the design of new semiconductor housings through CAD applications and in-house prototyping.
LATRONICS can manufacture housings with the exact specifications desired to accommodate your semiconductor application.
Schematics, Technical Data Sheets, Application Data
High-Temperature Feed Thru Terminals
Designs:
- Feedthrus or Pin Seals are custom made to specifications that are determined by the electrical, temperature, and environmental condition requirements.
- The parts illustrated on this page are a cross section of Feedthrus/Pin Seals manufactured at LATRONICS.
- Standard parts are available.
End Seals
LATRONICS end seals are typically used as insulated feedthru terminals for both straight and finned tubular heating elements, screw plug tubular heating elements, sheathed heating elements, or power cables. They will maintain hermeticity and strength under extreme operating temperatures, vibration, shock, and corrosive atmospheres. LATRONICS offers end seals with single leads, dual leads, or in custom designs.
Schematics, Technical Data Sheets, Photo Samples
Metalized Ceramics

The most important component to a quality ceramic-to-metal seal is the metal pattern fired into the ceramic. This coating becomes the interface that bonds the dissimilar materials together. The LATRONICS process utilizes a special moly-manganese material that is applied to the ceramic directly or by a screen. This metalized coating is then bonded to the ceramic by high-temperature firing in a suitable atmosphere.
Leak Testing
LATRONICS qualifies every part or production lot for hermeticity. Assemblies are tested to 1 x 10-8 cc/he/sec with helium by a mass spectrometer leak detector. All equipment is state of the art and is calibrated at regular intervals to assure accuracy.
