Abstract:
Methods for depositing material on a chip include forming a mold layer. The mold layer includes one or more openings over respective contact areas, each of the one or more openings having an upper volume and a lower volume. The upper volume has a smaller diameter than a diameter of the lower volume. Each contact area is within the respective lower volume. A material is injected into the one or more openings under pressure.
Abstract:
A semiconductor apparatus having a through electrode, a semiconductor package, and a method of manufacturing the semiconductor package are provided. The method of includes preparing a substrate including a buried via, the buried via having a first surface at a first end, and the buried via extending from a first substrate surface of the substrate into the substrate; planarizing a second substrate surface of the substrate opposite the first substrate surface to form a through via by exposing a second via surface at a second end of the buried via opposite the first end; forming a conductive capping layer on the exposed second via surface of the through via; and recessing the second substrate surface so that at least a first portion of the through via extends beyond the second substrate surface.
Abstract:
Methods for depositing material on a chip include forming a mold layer on a substrate. The mold layer has one or more openings over respective contact areas on the substrate. The one or more openings are formed from an upper volume and a lower volume, the upper volume having a smaller diameter than a diameter of the lower volume. A material is injected into the one or more openings under pressure, such that gas trapped in the one or more openings displaces into the lower volume until the injected material in the one or more openings makes contact with each respective contact area.
Abstract:
A circuitry component comprising a semiconductor substrate, a pad over said semiconductor substrate, a tantalum-containing layer on a side wall and a bottom surface of said pad, a passivation layer over said semiconductor substrate, an opening in said passivation layer exposing said pad, a titanium-containing layer over said pad exposed by said opening, and a gold layer over said titanium-containing layer.
Abstract:
A surface finish may be formed in a microelectronic structure, wherein the surface finish may include a multilayer interlayer structure. Thus, needed characteristics, such as compliance and electro-migration resistance, of the interlayer structure may be satisfied by different material layers, rather attempting to achieve these characteristics with a single layer. In one embodiment, the multilayer interlayer structure may comprises a two-layer structure, wherein a first layer is formed proximate a solder interconnect and comprises a material which forms a ductile joint with the solder interconnect, and a second layer comprising a material having strong electro-migration resistance formed between the first layer and an interconnection pad. In a further embodiment, third layer may be formed adjacent the interconnection pad comprising a material which forms a ductile joint with the interconnection pad.
Abstract:
The present invention proposes a circuit component structure, which comprises a semiconductor substrate, a fine-line metallization structure formed over the semiconductor substrate and having at least one metal pad, a passivation layer formed over the fine-line metallization structure with the metal pads exposed by the openings of the passivation layer, at least one carbon nanotube layer formed over the fine-line metallization structure and the passivation layer and connecting with the metal pads. The present invention is to provide a carbon nanotube circuit component structure and a method for fabricating the same, wherein the circuit of a semiconductor element is made of an electrically conductive carbon nanotube, and the circuit of the semiconductor element can thus be made finer and denser via the superior electric conductivity, flexibility and strength of the carbon nanotube.
Abstract:
A method for forming through-wafer interconnects (TWI) in a substrate. Blind holes are formed from a surface, sidewalls thereof are passivated and coated with a conductive material. A vent hole is then formed from the opposite surface to intersect the blind hole. The blind hole is solder filled, followed by back thinning of the vent hole portion of the wafer to a final substrate thickness to expose the solder and conductive material at both the active surface and the thinned back side. A metal layer having a glass transition temperature greater than that of the solder may be plated to form a dam structure covering one or both ends of the TWI. Intermediate structures of semiconductor devices, semiconductor devices and systems are also disclosed.
Abstract:
A method for forming through-wafer interconnects (TWI) in a substrate of a thickness in excess of that of a semiconductor die such as a semiconductor wafer. Blind holes are formed from the active surface, sidewalls thereof passivated and coated with a solder-wetting material. A vent hole is then formed from the opposite surface (e.g., wafer back side) to intersect the blind hole. The blind hole is solder filled, followed by back thinning of the vent hole portion of the wafer to a final substrate thickness to expose the solder and solder-wetting material at both the active surface and the thinned back side. A metal layer such as nickel, having a glass transition temperature greater than that of the solder, may be plated to form a dam structure covering one or both ends of the TWI including the solder and solder-wetting material to prevent leakage of molten solder from the TWI during high temperature excursions. Intermediate structures of semiconductor devices, semiconductor devices and systems are also disclosed.
Abstract:
First and second contacts are formed on first and second wafers from disparate first and second conductive materials, at least one of which is subject to surface oxidation when exposed to air. A layer of oxide-inhibiting material is disposed over a bonding surface of the first contact and the first and second wafers are positioned relative to one another such that a bonding surface of the second contact is in physical contact with the layer of oxide-inhibiting material. Thereafter, the first and second contacts and the layer of oxide-inhibiting material are heated to a temperature that renders the first and second contacts and the layer of oxide-inhibiting material to liquid phases such that at least the first and second contacts alloy into a eutectic bond.
Abstract:
The present invention reveals a semiconductor chip structure and its application circuit network, wherein the switching voltage regulator or converter is integrated with a semiconductor chip by chip fabrication methods, so that the semiconductor chip has the ability to regulate voltage within a specific voltage range. Therefore, when many electrical devices of different working voltages are placed on a Printed Circuit Board (PCB), only a certain number of semiconductor chips need to be constructed. Originally, in order to account for the different demands in voltage, power supply units of different output voltages, or a variety of voltage regulators need to be added. However, using the built-in voltage regulator or converter, the voltage range can be immediately adjusted to that which is needed. This improvement allows for easier control of electrical devices of different working voltages and decreases response time of electrical devices.