Go to GlobalSpec.com Home
Toolbar   The Engineering Toolbar
The Ultimate Resource for Engineering and Technical Research. (Learn More)

Hermetic Sealing with Laser Technology

From EB Industries, LLC
 

 

Conventional hermetic sealing methods of the past - epoxies, solder seals and mechanical seals - cannot fulfill the microwave electronics requirement of 100% protection against moisture. Many sophisticated products in the microwave electronics industry must perform flawlessly in hostile environments, and therefore must have the protection of hermetic sealing. The most reliable method for these unique sealing requirements is laser welding. unlike its counterparts, the laser welding process allows for the removal and resealing of a previously welded cover with the same integrity as the initial seal.

Epoxies can be cured slowly at room temperature or quickly at elevated temperatures. They can be tailored for flexibility and conductivity, and epoxy-sealed packages can be reworked. However, the drawback of epoxies is their inability to provide a true, long term hermetic seal. Epoxy seals fail humidity and salt spray tests because of their high moisture diffusion rates.

Products & Services
Welding and fabrication services weld and fabricate a variety of materials. They may also perform services such as machining, CAD support, and field welding. Search by Specification | Learn more about Welding and Fabrication Services
Laser welding services use high-powered laser welding equipment to fuse materials together. Search by Specification | Learn more about Laser Welding Services
Electron beam welding services use a narrow beam with high energy density to weld metals and alloys with a narrower heat effect zone and deeper penetration compared to most other welding processes. Search by Specification | Learn more about Electron Beam Welding Services
Product Announcements
EnvirOptics - HERMACRIMP FEEDTHROUGHS AND TERMINALS
Enviroptics HermaCrimp seals utilize proprietary sealing technologies and space age polymeric materials to produce a hermetically sealed high energy feedthrough that can operate from -40 C to +130 C... (read more)
PA&E - Hermetic Sealed Interconnect Solutions
Whether your design requires glass-to-metal or ceramic-to-metal (Kryoflex®) hermetic seals, PA&E delivers innovative, versatile, and reliable solutions that perform to the highest standards in a... (read more)
G.I.S., Inc. - Aerofix-U Insulation Hangers
Aerofix-U is a polymeric rigid foam hanger with a foam tape inner lining which supports and absorbs vibration of operating pipelines. The outer-cover consists of a special rubber tape which seals the... (read more)
APM Hexseal Corp. - Bushing Seals for Sealed Switches/Circuit Breaker
Panel Bushing Seals for Sealed Switches/Circuit Breakers - Protect & prevent seepage/leakage through switch/circuit breaker panel cutout. (read more)
Ed Fagan, Inc. - Controlled Expansion Alloys...
Controlled expansion alloys are often used in applications where metals must form a hermetic seal with glass or ceramic. (read more)
 
Topics of Interest
Electronic circuits exposed to corrosive conditions, or required to have extreme performance characteristics, are sealed hermetically into special packages. Epoxy gluing, resistance welding,... (Read More)
Want to go a long way toward preventing those excess costs associated with seal failure? Understanding and improving seal system performance starts with a thorough understanding of seal composition,... (Read More)
Epoxy (EP) resins exhibit high strength and low shrinkage during curing. Epoxies are known for their toughness and resistance to chemical and environmental damage. Most epoxies are two-part resins... (Read More)
Epoxy urethane adhesives provide cured properties that are similar to epoxy-nylons except they provide a major improvement in moisture resistance. Isocyanate monomers and pre- polymer will react... (Read More)
Commercial epoxy adhesives are composed primarily of an epoxy resin, a curing agent, and other additives or modifiers. The curing agent may be incorporated into the resin to provide a single... (Read More)
See more product announcements for Welding and Fabrication Services
Quality Custom Metal Fabrication Services

Quality Custom Metal Fabrication Services
ALY Fabrication, Inc.


Making Metal Perform: Welding Diversity

Making Metal Perform: Welding Diversity
Iowa Laser Technology, Inc.


Fabrication Capabilities

Fabrication Capabilities
Buckeye Machine Fabricators, Inc.


11 See more product announcements for Welding and Fabrication Services