Method of producing a hermetic glass to metal seal without metal oxidation
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United States of America Patent
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Apr 10, 1990
Grant Date -
N/A
app pub date -
Sep 30, 1988
filing date -
Sep 30, 1988
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A method for forming a hermetic compression glass to metal seal which leaves the metal free of oxide. A temporary assembly of a metal header having a glass bead in an aperture therethrough and an electrical feedthrough conductor passing through the glass bead is heated in a dehydrated pure hydrogen environment to above the melting temperature of the glass bead, and then cooled to solidify the bead and cause the header to contract around the bead.
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