ABSTRACT

Metal Injection Molded (MIM) materials have been shown to exceed the industry standard for hermeticity in fiber optic and electronic packages.  The next property requiring study is the glass sealing of parts into MIM boxes.  These parts include glass, leads, windows, and ceramics.  For two decades, processes have been developed to glass seal parts into wrought metal boxes.  Glass sealing depends on several material properties including thermal expansion, surface condition, wetting, surface oxidation, and microstructure.  Successful glass sealing will result in exceeding the current industry standard.  This research focused on measuring the effect that several glass sealing processes have on the hermeticity of MIM boxes.  The results demonstrated that MIM boxes could be successfully glass sealed and the hermeticity of the MIM box does depend on the glass sealing process.

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