Abstract:
A method for fabricating a layer structure having a target topology profile in a step which has a side face and a lateral face, includes processes of: (a) depositing a dielectric layer on a preselected area of the substrate under first deposition conditions, wherein the dielectric layer has a portion whose resistance to fluorine and/or chlorine radicals under first dry-etching conditions is tuned; and (b) exposing the dielectric layer obtained in process (a) to the fluorine and/or chlorine radicals under the first dry-etching conditions, thereby removing at least a part of the portion of the dielectric layer, thereby forming a layer structure having the target topology profile on the substrate.
Abstract:
A method of reforming an insulating film deposited on a substrate having a recess pattern constituted by a bottom and sidewalls, includes: providing the film deposited on the substrate having the recess pattern in an evacuatable reaction chamber, wherein a property of a portion of the film deposited on the sidewalls is inferior to that of a portion of the film deposited on a top surface of the substrate; adjusting a pressure of an atmosphere of the reaction chamber to 10 Pa or less, which atmosphere is constituted by H2 and/or He without a precursor and without a reactant; and applying RF power to the atmosphere of the pressure-adjusted reaction chamber to generate a plasma to which the film is exposed, thereby reforming the portion of the film deposited on the sidewalls to improve the property of the sidewall portion of the film.
Abstract:
A method for fabricating a layer structure having a target topology profile in a step which has a side face and a lateral face, includes processes of: (a) depositing a dielectric layer on a preselected area of the substrate under first deposition conditions, wherein the dielectric layer has a portion whose resistance to fluorine and/or chlorine radicals under first dry-etching conditions is tuned; and (b) exposing the dielectric layer obtained in process (a) to the fluorine and/or chlorine radicals under the first dry-etching conditions, thereby removing at least a part of the portion of the dielectric layer, thereby forming a layer structure having the target topology profile on the substrate.
Abstract:
A method is for hydrophobization of a surface of a silicon-containing film by atomic layer deposition (ALD), wherein the surface is subjected to atmospheric exposure. The method includes: (i) providing a substrate with a silicon-containing film formed thereon; and (ii) forming on a surface of the silicon-containing film a hydrophobic atomic layer as a protective layer subjected to atmospheric exposure, by exposing the surface to a silicon-containing treating gas without exciting the gas. The treating gas is capable of being chemisorbed on the surface to form a hydrophobic atomic layer thereon.
Abstract:
A method for fabricating a layer structure having a target topology profile in a step which has a side face and a lateral face, includes processes of: (a) depositing a dielectric layer on a preselected area of the substrate under first deposition conditions, wherein the dielectric layer has a portion whose resistance to fluorine and/or chlorine radicals under first dry-etching conditions is tuned; and (b) exposing the dielectric layer obtained in process (a) to the fluorine and/or chlorine radicals under the first dry-etching conditions, thereby removing at least a part of the portion of the dielectric layer, thereby forming a layer structure having the target topology profile on the substrate.
Abstract:
A method of selectively depositing a capping layer structure on a semiconductor device structure is disclosure. The method may include; providing a partially fabricated semiconductor device structure comprising a surface including a metallic interconnect material, a metallic barrier material, and a dielectric material. The method may also include; selectively depositing a first metallic capping layer over the metallic barrier material and over the metallic interconnect material relative to the dielectric material; and selectively depositing a second metallic capping layer over the first metallic capping layer relative to the dielectric material. Semiconductor device structures including a capping layer structure are also disclosed.
Abstract:
A method for repairing process-related damage of a dielectric film includes: (i) adsorbing a first gas containing silicon on a surface of the damaged dielectric film without depositing a film in the absence of reactive species, (ii) adsorbing a second gas containing silicon on a surface of the dielectric film, followed by applying reactive species to the surface of the dielectric film, to form a monolayer film thereon, and (iii) repeating step (ii). The duration of exposing the surface to the first gas in step (i) is longer than the duration of exposing the surface to the second gas in step (ii).
Abstract:
A method of selectively depositing a capping layer structure on a semiconductor device structure is disclosure. The method may include; providing a partially fabricated semiconductor device structure comprising a surface including a metallic interconnect material, a metallic barrier material, and a dielectric material. The method may also include; selectively depositing a first metallic capping layer over the metallic barrier material and over the metallic interconnect material relative to the dielectric material; and selectively depositing a second metallic capping layer over the first metallic capping layer relative to the dielectric material. Semiconductor device structures including a capping layer structure are also disclosed.
Abstract:
Methods and related systems for topographically depositing a material on a substrate are disclosed. The substrate comprises a proximal surface and a gap feature. The gap feature comprises a sidewall and a distal surface. Exemplary methods comprise, in the given order: a step of positioning the substrate on a substrate support in a reaction chamber; a step of subjecting the substrate to a plasma pre-treatment; and, a step of selectively depositing a material on at least one of the proximal surface and the distal surface with respect to the sidewall. The step of subjecting the substrate to a plasma pre-treatment comprises exposing the substrate to at least one of fluorine-containing molecules, ions, and radicals.
Abstract:
A method of reforming an insulating film deposited on a substrate having a recess pattern constituted by a bottom and sidewalls, includes: providing the film deposited on the substrate having the recess pattern in an evacuatable reaction chamber, wherein a property of a portion of the film deposited on the sidewalls is inferior to that of a portion of the film deposited on a top surface of the substrate; adjusting a pressure of an atmosphere of the reaction chamber to 10 Pa or less, which atmosphere is constituted by H2 and/or He without a precursor and without a reactant; and applying RF power to the atmosphere of the pressure-adjusted reaction chamber to generate a plasma to which the film is exposed, thereby reforming the portion of the film deposited on the sidewalls to improve the property of the sidewall portion of the film.