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US 4,019,080 AGranted
Vacuum-tight seals between ceramic and aluminium components, evacuated envelopes incorporating the components sealed by said method, and vacuum tubes incorporating said envelopes
AssigneeThomson-CSF
InventorAndre Besson
Life of this patent
Estimating the term…
Abstract
An evacuated envelope having at least one ceramic component and one aluminum component sealed to one another along a common interface. A metallized layer is on said ceramic component along said interface and a fused solder having an Al-Si eutectic structure with 89% aluminum and 11% silicon is along said interface.
Claims2
An evacuated envelope, comprising at least one ceramic component and one aluminium component, sealed to one another along a common interface, a metallized layer on said ceramic component along said interface, and a fused solder having an Al-Si eutectic structure with 89% aluminium and 11% silicon along said interface.
Dependencies are inferred from the claim text.