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:
Implementations disclosed herein generally relate to methods of forming silicon oxide films. The methods can include performing silylation on the surface of the substrate having terminal hydroxyl groups. The hydroxyl groups on the surface of the substrate are then regenerated using a plasma and H2O soak in order to perform an additional silylation. Further methods include catalyzing the exposed surfaces using a Lewis acid, directionally inactivating the exposed first and second surfaces and deposition of a silicon containing layer on the sidewall surfaces. Multiple plasma treatments may be performed to deposit a layer having a desired thickness.
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:
In one implementation, a method of forming an amorphous silicon layer on a substrate in a processing chamber is provided. The method comprises depositing a predetermined thickness of a sacrificial dielectric layer over a substrate. The method further comprises forming patterned features on the substrate by removing portions of the sacrificial dielectric layer to expose an upper surface of the substrate. The method further comprises performing a plasma treatment to the patterned features. The method further comprises depositing an amorphous silicon layer on the patterned features and the exposed upper surface of the substrate. The method further comprises selectively removing the amorphous silicon layer from an upper surface of the patterned features and the upper surface of the substrate using an anisotropic etching process to provide the patterned features filled within sidewall spacers formed from the amorphous silicon layer.
Abstract:
Implementations disclosed herein generally relate to methods of forming silicon oxide films. The methods can include performing silylation on the surface of the substrate having terminal hydroxyl groups. The hydroxyl groups on the surface of the substrate are then regenerated using a plasma and H2O soak in order to perform an additional silylation. Further methods include catalyzing the exposed surfaces using a Lewis acid, directionally inactivating the exposed first and second surfaces and deposition of a silicon containing layer on the sidewall surfaces. Multiple plasma treatments may be performed to deposit a layer having a desired thickness.
Abstract:
Embodiments disclosed herein generally include methods for forming porous low k dielectric films. In one embodiment, a method of forming a porous low k dielectric film on a substrate using PECVD and in situ radical curing in a processing chamber is disclosed. The method includes introducing radicals into a processing region of the processing chamber, introducing a gas mixture into the processing region of the processing chamber, forming a plasma in the processing region and depositing the porous low k dielectric film on the substrate.
Abstract:
In one implementation, a method of forming an amorphous silicon layer on a substrate in a processing chamber is provided. The method comprises depositing a predetermined thickness of a sacrificial dielectric layer over a substrate. The method further comprises forming patterned features on the substrate by removing portions of the sacrificial dielectric layer to expose an upper surface of the substrate. The method further comprises performing a plasma treatment to the patterned features. The method further comprises depositing an amorphous silicon layer on the patterned features and the exposed upper surface of the substrate. The method further comprises selectively removing the amorphous silicon layer from an upper surface of the patterned features and the upper surface of the substrate using an anisotropic etching process to provide the patterned features filled within sidewall spacers formed from the amorphous silicon layer.
Abstract:
Implementations described herein generally relate to the formation of a silicon and aluminum containing layer. Methods described herein can include positioning a substrate in a process region of a process chamber; delivering a process gas to the process region, the process gas comprising an aluminum-containing gas and a silicon-containing gas; activating a reactant gas comprising a nitrogen-containing gas, a hydrogen containing gas, or combinations thereof; delivering the reactant gas to the process gas to create a deposition gas that deposits a silicon and aluminum containing layer on the substrate; and purging the process region. The above elements can be performed one or more times to deposit an etch stop stack.
Abstract:
Embodiments described herein generally relate to apparatus and methods for reducing hydrogen content of a film. Apparatus may include a chamber body, a support member coupled to a lift mechanism, and a source of hydrogen radicals. The chamber may have a radical conduit coupled with the source of hydrogen radicals at a first end and coupled with the chamber body at a second end. The chamber may have a dual-channel showerhead coupled with a lid rim. The dual-channel showerhead may be disposed between the radical source and the support member. The showerhead may face the support member. Methods may include forming a first film having a hydrogen content of about 1% to about 50% on a substrate in a chamber, and exposing the first film to hydrogen radicals to form a second film having reduced hydrogen content.
Abstract:
Implementations disclosed herein generally relate to methods of forming silicon oxide films. The methods can include performing silylation on the surface of the substrate having terminal hydroxyl groups. The hydroxyl groups on the surface of the substrate are then regenerated using a plasma and H2O soak in order to perform an additional silylation. Further methods include catalyzing the exposed surfaces using a Lewis acid, directionally inactivating the exposed first and second surfaces and deposition of a silicon containing layer on the sidewall surfaces. Multiple plasma treatments may be performed to deposit a layer having a desired thickness.