B23K35/322

Bonding wire for semiconductor device

The present invention provides a bonding wire capable of simultaneously satisfying ball bonding reliability and wedge bondability required of bonding wires for memories, the bonding wire including a core material containing one or more of Ga, In, and Sn for a total of 0.1 to 3.0 at % with a balance being made up of Ag and incidental impurities; and a coating layer formed over a surface of the core material, containing one or more of Pd and Pt, or Ag and one or more of Pd and Pt, with a balance being made up of incidental impurities, wherein the coating layer is 0.005 to 0.070 m in thickness.

Interconnection of conductor to feedthrough
10561851 · 2020-02-18 · ·

A method of interconnecting a conductor and a hermetic feedthrough of an implantable medical device includes welding a lead to a pad on a feedthrough. The feedthrough includes a ceramic insulator and a via hermetically bonded to the insulator. The via includes platinum. The pad is bonded to the insulator and electrically connected to the via, includes platinum, and has a thickness of at least 50 m. The lead includes at least one of niobium, platinum, titanium, tantalum, palladium, gold, nickel, tungsten, and oxides and alloys thereof.

FILTERED FEEDTHROUGH ASSEMBLY HAVING A CAPACITOR GROUND METALLIZATION ELECTRICALLY CONNECTED TO THE GOLD BRAZE PORTION SEALING A FERRULE PENINSULA TO A MATCHING INSULATOR CUTOUT

A hermetically sealed filtered feedthrough assembly attachable to an AIMD includes an insulator hermetically sealing the opening of a ferrule with a gold braze. The ferrule includes a peninsula extending into the ferrule opening and the insulator has a cutout matching the peninsula. A sintered platinum-containing paste hermetically seals at least one via hole extending through the insulator. At least one capacitor is disposed on the device side. An active electrical connection electrically connects the capacitor active metallization to the sintered paste. A ground electrical connection electrically connects the capacitor ground metallization disposed within a capacitor ground passageway to the portion of the gold braze along the ferrule peninsula. The dielectric of the capacitor may be less than 1,000 k.

HIGH TEMPERATURE BRAZING OF METALS AND CERAMICS TO CARBON SUBSTRATES
20240140595 · 2024-05-02 ·

An apparatus includes a first component comprising a carbon composite substrate. A high temperature coating is disposed on the surface of the carbon composite substrate. The high temperature coating includes a bond layer of a metal carbide on the surface of the substrate. The apparatus includes a second component, and braze material joining the surface of the first component to the second component. In some examples, a brake assembly may include a rotor having a surface configured to interface with another component of the brake assembly. The brake assembly includes an insert joined to the surface of the rotor without a mechanical fastener, and the insert defines a tough mechanical contact surface configured to protect the rotor.

Method for mounting a decorative element on a support and said support

The invention relates to a method for mounting at least one decorative element (3) on a support (2) comprising the steps of: a. taking a support (2) provided with at least one cavity (4); b. taking at least one decorative element (3); c. filling said cavity with a composite filler material comprising at least one metal powder and at least one organic binder and having, at the moment of filling, a viscosity comprised between 1,000 mPa.Math.s and 1,000,000 mPa.Math.s; d. heating the composite filler material to a higher temperature than its melting point to make it liquid; e. allowing the filler material to cool to form a substrate (6); f. making at least one housing (8) in said substrate (6); g. mounting said decorative element (3) in said housing (8). The present invention also concerns a decorative support (2) provided with at least one cavity (4) filled with said filler material forming a substrate (6) in which at least one housing (8) is formed, said housing (8) being arranged to receive said decorative element (3).

DEPOSITION OF BRAZE PREFORM

A method of manufacturing includes depositing a braze filler adjacent to a void between a first component and a second component thus holding the components in position before brazing. The first and second components are heated to melt and flow the braze filler into the void. A braze joint is formed between the first and second components by cooling the braze filler. Depositing the braze filler can include laser cladding the braze filler to the first and/or second components adjacent the void. The method also optionally includes welding the first and second components in position with the braze filler adjacent to the void. The braze filler may be deposited as a powder, cold spray, melted brazed filament, spherical ball or any other suitable form.

Braze joints with a dispersed particulate microstructure

The microstructure of braze joints in polycrystalline diamond compact (PDC) cutters may be tailored to increase the shear strength of the braze joint, for example, by increasing the amount of a dispersed particulate microstructure therein. A method for forming a dispersed particulate microstructure may include brazing a polycrystalline diamond table to a hard composite substrate with a braze alloy at a braze temperature between 5 C. above a solidus temperature of the braze alloy and 200 C. above a liquidus temperature of the braze alloy; and forming a braze joint between the polycrystalline diamond table and the hard composite substrate that comprises at least 40% by volume of the dispersed particulate microstructure composed of a particulate inter-metallic phase having a diameter of 0.5 m to 2.0 m and an aspect ratio of 1 to 5 dispersed in a ductile matrix.

Deposition of braze preform

A method of manufacturing includes depositing a braze filler adjacent to a void between a first component and a second component thus holding the components in position before brazing. The first and second components are heated to melt and flow the braze filler into the void. A braze joint is formed between the first and second components by cooling the braze filler. Depositing the braze filler can include laser cladding the braze filler to the first and/or second components adjacent the void. The method also optionally includes welding the first and second components in position with the braze filler adjacent to the void. The braze filler may be deposited as a powder, cold spray, melted brazed filament, spherical ball or any other suitable form.

Device and method for producing a device

A device and a method for producing a device are disclosed. In an embodiment the device includes a first component, a second component and a connecting element directly arranged between the first component and the second component, wherein the connecting element includes at least a first metal, which is formed as an adhesive layer, a diffusion barrier and a component of a first phase and a second phase of the connecting element, wherein the adhesive layer is arranged on the first component and/or the second component, wherein the first phase and/or the second phase includes, besides the first metal, further metals different from the first metal, wherein a concentration of the first metal in the first phase is greater than a concentration of the first metal in the second phase, and wherein the connecting element includes a layer of a silicide of the first metal.

HERMETICALLY SEALED FILTERED FEEDTHROUGH ASSEMBLY HAVING A CAPACITOR WITH AN OXIDE RESISTANT ELECTRICAL CONNECTION TO AN ACTIVE IMPLANTABLE MEDICAL DEVICE HOUSING

A hermetically sealed filtered feedthrough assembly attachable to an AIMD includes an insulator hermetically sealing a ferrule opening of an electrically conductive ferrule with a gold braze. A co-fired and electrically conductive sintered paste is disposed within and hermetically seals at least one via hole extending in the insulator. At least one capacitor is disposed on the device side. An active electrical connection electrically connects a capacitor active metallization and the sintered paste. A ground electrical connection electrically connects the gold braze to a capacitor ground metallization, wherein at least a portion of the ground electrical connection physically contacts the gold braze. The dielectric of the capacitor may be less than 1000 k. The ferrule may include an integrally formed peninsula portion extending into the ferrule opening spatially aligned with a ground passageway and metallization of an internally grounded feedthrough capacitor. The sintered paste may be of substantially pure platinum.