Abstract:
A method and apparatus are presented for reducing halide-based contamination within deposited titanium-based thin films. Halide adsorbing materials are utilized within the deposition chamber to remove halides, such as chlorine and chlorides, during the deposition process so that contamination of the titanium-based film is minimized. A method for regenerating the halide adsorbing material is also provided.
Abstract:
A method and apparatus are presented for reducing halide-based contamination within deposited titanium-based thin films. Halide adsorbing materials are utilized within the deposition chamber to remove halides, such as chlorine and chlorides, during the deposition process so that contamination of the titanium-based film is minimized. A method for regenerating the halide adsorbing material is also provided.
Abstract:
A method of forming a metal containing layer on a substrate, particularly a semiconductor substrate or substrate assembly for use in manufacturing a semiconductor or memory device structure, using one or more precursor compounds that include niobium and/or vanadium and using an atomic layer deposition process including a plurality of deposition cycles.
Abstract:
A method for removing at least a portion of a structure, such as a layer, film, or deposit, including ruthenium metal and/or ruthenium dioxide includes contacting the structure with a material including ceric ammonium nitrate. A material for removing ruthenium metal and amorphous ruthenium dioxide includes ceric ammonium nitrate and may be in the form of an aqueous solution including ceric ammonium nitrate and optionally, other solid or liquid solutes providing desired properties. In one application, the method and material may be utilized to etch, shape, or pattern layers or films of ruthenium metal and/or ruthenium dioxide in the fabrication of semiconductor systems and their elements, components, and devices, such as wires, electrical contacts, word lines, bit lines, interconnects, vias, electrodes, capacitors, transistors, diodes, and memory devices.
Abstract:
A composition suitable for cleaning and methods of cleaning etch residue are provided. The composition includes at least one source of a fluoride ion and at least one organic solvent.
Abstract:
A film is provided on a mold used during semiconductor device fabrication through surface modifications to the mold to provide non-stick characteristics and a mold surface that is resistant to abrasion or wear. Such surface modifications are particularly useful in a mold having a quartz planar surface adapted to contact a photocurable polymer material applied to a semiconductor wafer surface during a fabrication process. The planar surface of the mold is capable of allowing transmission of ultraviolet light therethrough to cure the polymer material. A non-stick film is formed on the planar surface of the mold by a coating or deposition process in order to modify the mold surface. The non-stick film can be formed of a fluoroalkylsilane compound, or a hard material such as diamond or diamond-like carbon. The non-stick film of diamond or diamond-like carbon provides protection against abrasion or wear on the planar surface of the mold. In addition, the non-stick film of diamond or diamond-like carbon can be fluorine-terminated, or can have a coating layer of a fluoroalkylsilane compound formed thereover.
Abstract:
A method of inhibiting deposition of material on a wall of a chemical vapor deposition reactor includes providing a chemical vapor deposition reactor having a wall which has an inside facing surface, the inside facing surface at least partially defining a chemical vapor deposition reactor chamber; forming a first material atop the inside facing surface; positioning a substrate in the chemical vapor deposition reactor chamber, the substrate having an outer surface; and chemical vapor depositing a second material layer on the substrate in a manner which is selective to the substrate outer surface, and not the first material, thereby restricting deposition of the second layer on the reactor inside facing surface.
Abstract:
An improved method and apparatus are provided for subliming solid precursors, and especially organometallic precursors, for use in a chemical vapor deposition (CVD) process. The sublimation apparatus includes a sealed vessel having a vacuum chamber. A quantity of the solid precursor is mixed with a loosely packed particulate material, such as ceramic beads, placed within the vacuum chamber. The vacuum chamber and particulate material are heated. A supply of a carrier gas is directed through the particulate material (particularly through pockets formed in the particulate material) to sublime the precursor which coats the individual particles of particulate material. By agitating the particulate material, a relatively constant sublimation area is maintained. Agitation of the particulate material may be with a mechanical stirrer or by directing an a.c. field through a piezoelectric particulate material.
Abstract:
A method of removing an oxide layer from an article. The article may be located in a reaction chamber into which an interhalogen compound reactive with the oxide layer is introduced. A temperature of the reaction chamber may be modified so as to remove the oxide layer. The interhalogen compound may form volatile by-product gases upon reaction with the oxide layer. Unreacted interhalogen compound and volatile by-product gases may then be removed from the reaction chamber.
Abstract:
A method for removing at least a portion of a structure, such as a layer, film, or deposit, including ruthenium metal and/or ruthenium dioxide includes contacting the structure with a material including ceric ammonium nitrate. A material for removing ruthenium metal and amorphous ruthenium dioxide includes ceric ammonium nitrate and may be in the form of an aqueous solution including ceric ammonium nitrate and, optionally, other solid or liquid solutes providing desired properties. In one application, the method and material may be utilized to etch, shape, or pattern layers or films of ruthenium metal and/or ruthenium dioxide in the fabrication of semiconductor systems and their elements, components, and devices, such as wires, electrical contacts, word lines, bit lines, interconnects, vias, electrodes, capacitors, transistors, diodes, and memory devices.