SRI Hermetics products are built with the technology, resources and experience to solve or prevent problems, while providing superior performance and value. The integration of SRIH’s advanced materials and technology into customers’ products provide optimum solutions.
The SRIH product design team provides innovative solutions to complicated hermetic packaging applications and challenging connector requirements. With extensive experience in the hermetic connector industry, the SRIH technical staff routinely provides customers with the best design-to-cost solutions.
The design of sophisticated hermetic assemblies often requires the combination of many different materials to achieve desired performance characteristics of the assembly. SRI Hermetics’ design engineers use a variety of methods to join different materials such as explosion welding, vacuum brazing and laser welding.
SRI Hermetics products are manufactured in a state-of-the-art machine shop—recently expanded to add 4,500 sq. ft and $1.5M of cutting edge machining equipment—with a full complement of turning and milling machines inside its facility to respond to quick-turn projects, tooling and critical prototype jobs.
SRIH products are manufactured using powerful in-house capabilities, with over a dozen different machines, all the appropriate inspection tools, and a highly trained and experienced staff. These are supplemented by an established network of machining sources, which allows SRIH to optimize the machining requirements for its products, staying more flexible and nimble than competitors that practice full vertical integration.
Although its Ceramax technology offers many advantages over standard sealing methods there are still applications where glass is a better suited dielectric. Glass feedthroughs are particularly useful for high frequency match impedance connectors due to the crystalline amorphous properties of the glass which promote low loss signal transmissions. SRI Hermetics has a full line of laser weldable RF connectors that utilize glass as their dielectric and although glass seals have a reputation for hermetic failure they become very reliable when the design of the feedthrough permits the glass to remain in a neutral stress condition.
SRI Hermetics has several vacuum brazing stations that are used for joining metal-to-metal as well as metal-to-ceramic. The primary advantages of vacuum brazing over conventional brazing is the high density, oxide free joints that are created between the parent materials and the ability to bond materials that cannot be bonded using other brazing processes.
The design of sophisticated hermetic assemblies often requires the combination of many different materials to achieve desired performance characteristics of the assembly. SRI Hermetics’ design engineers use vacuum brazing as one of their fundamental methods to join some of these different materials.
SRI Hermetics has a substantial number of customers who purchase its laser weldable connectors as well as many who purchase its higher level assemblies complete with connectors integrated. We also have customers who supply some of the sub-components and have SRIH do the final assembly work. In all cases, SRIH’s engineers are available to provide design and technical support.
This unique metal joining process gives SRIH the capability of creating hermetic connectors that consist of two, or more, dissimilar metals. The competitive practice of creating unreliable seals in less than optimum connector shell materials is eliminated with SRIH’s bi-metal connector shell technology. Making use of a bi-metallic connector shell reserves one metal portion of the shell for hermetically sealing the contacts (stainless steel portion), while the other metal portion, usually the bulk of the connector, is available to meet the customer’s requirements, (typically aluminum or titanium).