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Summary of Epoxy Sealed Air Cavity Packages (ceramic, metal, glass and LCP)
Keywords: ceramic, metal, glass, LCP
The RJR experience base as a supplier of Epoxy seal coated lids dates back to 1983. Initially the package lids and bodies were made of ceramic or metallic materials but there were some applications involving circuit board on one side of the seal. Glass reinforced circuit board can be more than 50% by volume of polymers, like epoxy. The parts are in cars, airplanes, cell phones, cameras, etc. Organic components (all plastics) have a moisture vapor transmission coefficient. Ultimately, equilibrium will drive moisture vapor to equilibrate to the average humidity of the surrounding environment. All of the electronic components made with these materials have experienced these conditions Moisture data developed will be presented.
Dick Ross,
RJR Polymers Inc.
Oakland, CA

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