Hermetically bonding ceramic and titanium with a Ti-Pd braze interface
AssigneeBoston Scientific Neuromodulation Corporation
InventorsTom Xiaohai He, Michael S. Colvin
Life of this patent
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Abstract
A component assembly for use in living tissue comprises: a ceramic part; a metal part; and a titanium palladium (Ti—Pd) interface layer for bonding said ceramic part to the metal part. In one embodiment, the interface layer may be formed from a single titanium layer in contact with a single palladium layer, or in other embodiments, may be at least a three layer laminate (Pd—Ti—Pd). A microstimulator housing comprising a ceramic part, a titanium or titanium alloy part sandwiching the Ti—Pd interlayer may be employed to create a eutectic bond that is strong and hermetic.
Claims20
A component assembly for use in living tissue comprising:
- a ceramic part;
- a metal part selected from the group consisting of titanium and titanium alloys;
- and
- an interface layer consisting essentially of titanium and palladium, the interface layer bonding the ceramic part to the metal part.
A microstimulator comprising:
- a component assembly housing comprising:
- a ceramic part;
- a metal part selected from the group consisting of titanium and titanium alloy;
- and
- an interface layer consisting essentially of titanium and palladium, the interface layer bonding the ceramic part to the metal part.
Dependencies are inferred from the claim text.