Abstract:
Methods for depositing a metal contact stack on a substrate are described. The method stack includes a metal cap layer and a molybdenum conductor layer. The method includes depositing the metal cap layer on the substrate by physical vapor deposition (PVD) and depositing the molybdenum conductor layer by atomic layer deposition (ALD) on the metal cap layer.
Abstract:
Described are methods of forming a semiconductor device. Certain methods comprises depositing a film comprising manganese nitride over a dielectric; depositing a copper seed layer over the film; and depositing a copper fill layer over the copper seed layer. Also described are semiconductor devices. Certain semiconductor devices comprise a low-k dielectric layer; a manganese nitride layer overlying the low-k dielectric layer; a seed layer selected from a copper seed layer or electrochemical deposition seed layer overlying the manganese nitride layer; a copper layer overlying the copper seed layer.
Abstract:
Methods for depositing metal layers, and more specifically TaN layers, using CVD and ALD techniques are provided. In one or more embodiments, the method includes sequentially exposing a substrate to a metal precursor, or more specifically a tantalum precursor, followed by a high frequency plasma.
Abstract:
Described are doped TaN films, as well as methods for providing the doped TaN films. Doping TaN films with Ru, Cu, Co, Mn, Al, Mg, Cr, Nb, Ti and/or V allows for enhanced copper barrier properties of the TaN films. Also described are methods of providing films with a first layer comprising doped TaN and a second layer comprising one or more of Ru and Co, with optional doping of the second layer.
Abstract:
Methods and apparatus for forming a metal silicide as nanowires for back-end interconnection structures for semiconductor applications are provided. In one embodiment, the method includes forming a metal silicide stack comprising as plurality of metal silicide layers on a substrate by a chemical vapor deposition process or a physical vapor deposition process, thermal treating the metal silicide stack in a processing chamber, applying a microwave power in the processing chamber while thermal treating the metal silicide layer; and maintaining a substrate temperature less than 400 degrees Celsius while thermal treating the metal silicide layer.
Abstract:
A method and apparatus for producing thin films for photovoltaic (PV) devices is described. In one embodiment, an apparatus for depositing thin films on a substrate is described. The apparatus includes a chamber having a showerhead disposed in an opposing relationship to a substrate support, and at least a first gas source and a second gas source in fluid communication with a plurality of discrete reaction zones of the showerhead, the reaction zones comprising a first reaction zone contained in a space between a first side of the showerhead and the substrate support, the first reaction zone in electrical communication with a RF power supply, and a second reaction zone contained within an opposing second side of the showerhead, the second reaction zone being electrically isolated from the first reaction zone.
Abstract:
Embodiments of the invention generally provide a method of forming an air gap between conductive elements of a semiconductor device, wherein the air gap has a dielectric constant of approximately 1. The air gap may generally be formed by depositing a sacrificial material between the respective conductive elements, depositing a porous layer over the conductive elements and the sacrificial material, and then stripping the sacrificial material out of the space between the respective conductive elements through the porous layer, which leaves an air gap between the respective conductive elements. The sacrificial material may be, for example, a polymerized alpha terpinene layer, the porous layer may be, for example, a porous carbon doped oxide layer, and the stripping process may utilize a UV based curing process, for example.
Abstract:
The present invention generally provides an apparatus and method for reducing defects on films deposited on semiconductor substrates. One embodiment of the present invention provides a method for depositing a film on a substrate. The method comprises treating the substrate with a first plasma configured to reduce pre-existing defects on the substrate, and depositing a film comprising silicon and carbon on the substrate by applying a second plasma generated from at least one precursor and at least one reactant gas.
Abstract:
A method and apparatus for cleaning a processing chamber are provided. The cleaning method includes the use of a remote plasma source to generate reactive species and an in situ RF power to generate or regenerate reactive species. The reactive species are generated from a carbon and fluorine-containing gas and an oxygen source.
Abstract:
Methods and apparatus for processing a substrate is provided herein. For example, a method for processing a substrate comprises depositing a silicide layer within a feature defined in a layer on a substrate, forming one of a metal liner layer or a metal seed layer atop the silicide layer within the feature via depositing at least one of molybdenum (Mo) or tungsten (W) using physical vapor deposition, and depositing Mo using at least one of chemical vapor deposition or atomic layer deposition atop the at least one of the metal liner layer or the metal seed layer, without vacuum break.