Abstract:
Methods for seam-less gapfill comprising forming a flowable film by exposing a substrate surface to a silicon-containing precursor and a co-reactant are described. The silicon-containing precursor has at least one akenyl or alkynyl group. The flowable film can be cured by any suitable curing process to form a seam-less gapfill.
Abstract:
Methods for seam-less gapfill comprising forming a flowable film by PECVD and curing the flowable film to solidify the film. The flowable film can be formed using a higher order silane and plasma. A UV cure, or other cure, can be used to solidify the flowable film.
Abstract:
Embodiments disclosed herein generally include an apparatus for radical-based deposition of dielectric films. The apparatus includes a processing chamber, a radical source coupled to the processing chamber, a substrate support disposed in the processing chamber, and a dual-channel showerhead disposed between the radical source and the substrate support. The dual-channel showerhead includes a plurality of tubes and an internal volume surrounding the plurality of tubes. The plurality of tubes and the internal volume are surrounded by one or more annular channels embedded in the dual-channel showerhead. The dual-channel showerhead further includes a first inlet connected to the one or more channels and a second inlet connected to the internal volume. The processing chamber may be a PECVD chamber, and the apparatus is capable of performing a cyclic process (alternating radical based CVD and PECVD).
Abstract:
Embodiments of the present disclosure relate to a metal-doped amorphous carbon hardmask for etching the underlying layer, layer stack, or structure. In one embodiment, a method of processing a substrate in a processing chamber includes exposing a substrate to a gas mixture comprising a carbon-containing precursor and a metal-containing precursor, reacting the carbon-containing precursor and the metal-containing precursor in the processing chamber to form a metal-doped carbon layer over a surface of the substrate, forming in the metal-doped carbon layer a defined pattern of through openings, and transferring the defined pattern to an underlying layer beneath the metal-doped carbon layer using the metal-doped carbon layer as a mask. An etch hardmask using the inventive metal-doped amorphous carbon film provides reduced compressive stress, high hardness, and therefore higher etch selectivity.
Abstract:
A method is provided for forming an interconnect structure for use in semiconductor devices. The method starts with forming a low-k bulk dielectric layer on a substrate and then forming a trench in the low-k bulk dielectric layer. A liner layer is formed on the low-k bulk dielectric layer being deposited conformally to the trench. A copper layer is formed on the liner layer filling the trench. Portions of the copper layer and liner layer are removed to form an upper surface of the low-k bulk dielectric layer, the liner layer, and the copper layer. A metal containing dielectric layer is formed on the upper surface of the low-k bulk dielectric layer, the liner layer, and the copper layer.
Abstract:
Method and apparatus for forming a patterned magnetic substrate are provided. A patterned resist is formed on a magnetically active surface of a substrate. An oxide layer is formed over the patterned resist by a flowable CVD process. The oxide layer is etched to expose portions of the patterned resist. The patterned resist is then etched, using the etched oxide layer as a mask, to expose portions of the magnetically active surface. A magnetic property of the exposed portions of the magnetically active surface is then modified by directing energy through the etched resist layer and the etched oxide layer, which are subsequently removed from the substrate.
Abstract:
A method of forming a dielectric layer is described. The method deposits a silicon-containing film by chemical vapor deposition using a local plasma. The silicon-containing film is flowable during deposition at low substrate temperature. A silicon precursor (e.g. a silylamine, higher order silane or halogenated silane) is delivered to the substrate processing region and excited in a local plasma. A second plasma vapor or gas is combined with the silicon precursor in the substrate processing region and may include ammonia, nitrogen (N2), argon, hydrogen (H2) and/or oxygen (O2). The equipment configurations disclosed herein in combination with these vapor/gas combinations have been found to result in flowable deposition at substrate temperatures below or about 200° C. when a local plasma is excited using relatively low power.
Abstract:
Embodiments of the present invention generally relate to methods for forming a metal structure and passivation layers. In one embodiment, metal columns are formed on a substrate. The metal columns are doped with manganese, aluminum, zirconium, or hafnium. A dielectric material is deposited over and between the metal columns and then cured to form a passivation layer on vertical surfaces of the metal columns.
Abstract:
Exemplary methods of semiconductor processing may include providing a treatment precursor to a processing region of a semiconductor processing chamber. A substrate may be disposed within the processing region. The methods may include contacting a surface of the substrate with the treatment precursor. The methods may include providing deposition precursors to the processing region. The deposition precursors may include a metal-containing precursor. The methods may include forming plasma effluents of the deposition precursors. The methods may include contacting the substrate with the plasma effluents of the deposition precursors. The contacting may deposit a metal-containing hardmask on the substrate.
Abstract:
Semiconductor devices (e.g., gate-all-around (GAA) devices), process tools for manufacturing GAA devices and methods of manufacturing GAA devices and multilayer inner spacers for GAA devices are described. The multilayer inner spacer comprises an inner layer, a middle layer, and an outer layer within a superlattice structure formed on a top surface of a substrate. The superlattice structure has a plurality of semiconductor material layers (e.g., silicon germanium (SiGe)) and a corresponding plurality of channel layers (e.g., silicon (Si)) alternatingly arranged in a plurality of stacked pairs. In some embodiments, the methods are performed in situ in an integrated deposition and etch processing system.