Abstract:
Implementations described herein provide a substrate support assembly which enables tuning of a plasma within a plasma chamber. In one embodiment, a method for tuning a plasma in a chamber is provided. The method includes providing a first radio frequency power and a direct current power to a first electrode in a substrate support assembly, providing a second radio frequency power to a second electrode in the substrate support assembly at a different location than the first electrode, monitoring parameters of the first and second radio frequency power, and adjusting one or both of the first and second radio frequency power based on the monitored parameters.
Abstract:
Embodiments of substrates supports for use in process chambers are provided herein. In some embodiments, a substrate support includes: a dielectric plate having a first side configured to support a substrate having a given diameter and including an annular groove disposed in the first side, wherein the annular groove has an inner diameter that is less than the given diameter and an outer diameter that is greater than the given diameter, wherein the dielectric plate includes a chucking electrode; an insert ring disposed in the annular groove of the dielectric plate; and an edge ring disposed on the dielectric plate, wherein the edge ring has an inner diameter that is greater than the given diameter and less than the outer diameter of the annular groove such that the edge ring is disposed over a portion of the insert ring.
Abstract:
Embodiments of the present disclosure generally relate to a system used in a semiconductor device manufacturing process. More specifically, embodiments provided herein generally include apparatus and methods for synchronizing and controlling the delivery of an RF bias signal and a pulsed voltage waveform to one or more electrodes within a plasma processing chamber. The apparatus and methods disclosed herein can be useful to at least minimize or eliminate a microloading effect created while processing small dimension features that have differing densities across various regions of a substrate. The plasma processing methods and apparatus described herein are configured to improve the control of various characteristics of the generated plasma and control an ion energy distribution (IED) of the plasma generated ions that interact with a surface of a substrate during plasma processing. The ability to synchronize and control waveform characteristics of a voltage waveform bias established on a substrate during processing allows for an improved control of the generated plasma and process of forming, for example, high-aspect ratio features in the surface of the substrate by a reactive ion etching process. As a result, greater precision for plasma processing can be achieved, which is described herein in more detail.
Abstract:
Embodiments of the present invention provide a plasma chamber design that allows extremely symmetrical electrical, thermal, and gas flow conductance through the chamber. By providing such symmetry, plasma formed within the chamber naturally has improved uniformity across the surface of a substrate disposed in a processing region of the chamber. Further, other chamber additions, such as providing the ability to manipulate the gap between upper and lower electrodes as well as between a gas inlet and a substrate being processed, allows better control of plasma processing and uniformity as compared to conventional systems.
Abstract:
Embodiments of the present disclosure generally provide various apparatus and methods for reducing particles in a semiconductor processing chamber. One embodiment of present disclosure provides a vacuum screen assembly disposed over a vacuum port to prevent particles generated by the vacuum pump from entering substrate processing regions. Another embodiment of the present disclosure provides a perforated chamber liner around a processing region of the substrate. Another embodiment of the present disclosure provides a gas distributing chamber liner for distributing a cleaning gas around the substrate support under the substrate supporting surface.
Abstract:
Embodiments of the present invention provide a plasma chamber design that allows extremely symmetrical electrical, thermal, and gas flow conductance through the chamber. By providing such symmetry, plasma formed within the chamber naturally has improved uniformity across the surface of a substrate disposed in a processing region of the chamber. Further, other chamber additions, such as providing the ability to manipulate the gap between upper and lower electrodes as well as between a gas inlet and a substrate being processed, allows better control of plasma processing and uniformity as compared to conventional systems.
Abstract:
Embodiments of the present invention provide a plasma chamber design that allows extremely symmetrical electrical, thermal, and gas flow conductance through the chamber. By providing such symmetry, plasma formed within the chamber naturally has improved uniformity across the surface of a substrate disposed in a processing region of the chamber. Further, other chamber additions, such as providing the ability to manipulate the gap between upper and lower electrodes as well as between a gas inlet and a substrate being processed, allows better control of plasma processing and uniformity as compared to conventional systems.
Abstract:
Embodiments of the present invention provide a plasma chamber design that allows extremely symmetrical electrical, thermal, and gas flow conductance through the chamber. By providing such symmetry, plasma formed within the chamber naturally has improved uniformity across the surface of a substrate disposed in a processing region of the chamber. Further, other chamber additions, such as providing the ability to manipulate the gap between upper and lower electrodes as well as between a gas inlet and a substrate being processed, allows better control of plasma processing and uniformity as compared to conventional systems.
Abstract:
The invention discloses a plasma processing apparatus comprising a chamber lid, a chamber body and a support assembly. The chamber body, defining a processing volume for containing a plasma, for supporting the chamber lid. The chamber body is comprised of a chamber sidewall, a bottom wall and a liner assembly. The chamber sidewall and the bottom wall define a processing volume for containing a plasma. The liner assembly, disposed inside the processing volume, comprises of three or more slots formed thereon for providing an axial symmetric RF current path. The support assembly supports a substrate for processing within the chamber body. With the liner assembly with several symmetric slots, the present invention can prevent electromagnetic fields thereof from being azimuthal asymmetry.
Abstract:
Implementations of the present disclosure provide a process kit for an electrostatic chuck. In one implementation, a substrate support assembly is provided. The substrate support assembly includes an electrostatic chuck having a first recess formed in an upper portion of the electrostatic chuck. A process kit surrounds the electrostatic chuck. The process kit includes an inner ring and an outer ring disposed radially outward of the inner ring. The outer ring includes a second recess formed in an upper portion of the upper ring. The inner ring is positioned within and is supported by the first recess and the second recess. An upper surface of the inner ring and an upper surface of the outer ring are co-planar.