摘要:
The invention can provide apparatus and methods of processing a substrate using plasma generation by gravity-induced gas-diffusion separation techniques. By adding or using gases including inert and process gases with different gravities (i.e., ratio between the molecular weight of a gaseous constituent and a reference molecular weight), a two-zone or multiple-zone plasma can be formed, in which one kind of gas can be highly constrained near a plasma generation region and another kind of gas can be largely separated from the aforementioned gas due to differential gravity induced diffusion and is constrained more closer to a wafer process region than the aforementioned gas.
摘要:
The invention can provide apparatus and methods of processing a substrate using plasma generation by gravity-induced gas-diffusion separation techniques. By adding or using gases including inert and process gases with different gravities (i.e., ratio between the molecular weight of a gaseous constituent and a reference molecular weight), a two-zone or multiple-zone plasma can be formed, in which one kind of gas can be highly constrained near a plasma generation region and another kind of gas can be largely separated from the aforementioned gas due to differential gravity induced diffusion and is constrained more closer to a wafer process region than the aforementioned gas.
摘要:
An ion energy analyzer for determining an ion energy distribution of a plasma and comprising an entrance grid, a selection grid, and an ion collector. The entrance grid includes a first plurality of openings dimensioned to be less than a Debye length for the plasma. The ion collector is coupled to the entrance grid via a first voltage source. The selection grid is positioned between the entrance grid and the ion collector and is coupled to the entrance grid via a second voltage source. An ion current meter is coupled to the ion collector to measure an ion flux onto the ion collector and transmit a signal related thereto.
摘要:
A process by which an ion energy analyzer is manufactured includes processing a first substrate to form an entrance grid having a first channel and a first plurality of openings extending therethrough. A second substrate is processed to form a selection grid having a second channel therein and a second plurality of openings extending therethrough. A third substrate is processed to form an ion collector having a third channel therein. The entrance grid is operably coupled to, and electrically isolated from, the selection grid, which is, in turn, operably coupled to, and electrically isolated from, the ion collector.
摘要:
The invention provides a plurality of resonator subsystems. The resonator subsystems can comprise one or more resonant cavities configured to couple electromagnetic (EM) energy in a desired EM wave mode to plasma by generating resonant microwave energy in a resonant cavity adjacent the plasma. The resonator subsystem can be coupled to a process chamber using one or more interface subsystems and can comprise one or more resonant cavities, and each resonant cavity can have a plurality of plasma tuning rods coupled thereto. Some of the plasma tuning rods can be configured to couple the EM-energy from one or more of the resonant cavities to the process space within the process chamber.
摘要:
A replaceable chamber element for use in a plasma processing system, such as a plasma etching system, is described. The replaceable chamber element includes a chamber component configured to be exposed to plasma in a plasma processing system, wherein the chamber component is fabricated of a ferroelectric material.
摘要:
A process by which an ion energy analyzer is manufactured includes processing a first substrate to form an entrance grid having a first channel and a first plurality of openings extending therethrough. A second substrate is processed to form a selection grid having a second channel therein and a second plurality of openings extending therethrough. A third substrate is processed to form an ion collector having a third channel therein. The entrance grid is operably coupled to, and electrically isolated from, the selection grid, which is, in turn, operably coupled to, and electrically isolated from, the ion collector.
摘要:
A surface wave plasma (SWP) source is described. The SWP source comprises an electromagnetic (EM) wave launcher configured to couple EM energy in a desired EM wave mode to a plasma by generating a surface wave on a plasma surface of the EM wave launcher adjacent the plasma. The EM wave launcher comprises a slot antenna having a plurality of slots. The SWP source further comprises a first recess configuration formed in the plasma surface, wherein the first recess configuration is substantially aligned with a first arrangement of slots in the plurality of slots, and a second recess configuration formed in the plasma surface, wherein the second recess configuration is either partly aligned with a second arrangement of slots in the plurality of slots or not aligned with the second arrangement of slots in the plurality of slots. A power coupling system is coupled to the EM wave launcher and configured to provide the EM energy to the EM wave launcher for forming the plasma.
摘要:
A method of generating a signal representing with an ion energy analyzer for use in determining an ion energy distribution of a plasma. The ion energy analyzer, used for determining an ion energy distribution of a plasma, includes a first grid and a second grid that is spaced away from and electrically isolated from the first grid. The first grid forms a first surface of the ion energy analyzer and is positioned to be exposed to the plasma. The first grid includes a first plurality of openings, which are dimensioned to be less than a Debye length for the plasma. A voltage source and an ion current meter are operably coupled to the second grid, the latter of which is configured to measure an ion flux onto the ion collector and to transmit a signal that represents the measured ion flux. The method includes selectively and variably biasing the second grid relative to the first grid.
摘要:
A method of generating a signal representing with an ion energy analyzer for use in determining an ion energy distribution of a plasma. The ion energy analyzer, used for determining an ion energy distribution of a plasma, includes a first grid and a second grid that is spaced away from and electrically isolated from the first grid. The first grid forms a first surface of the ion energy analyzer and is positioned to be exposed to the plasma. The first grid includes a first plurality of openings, which are dimensioned to be less than a Debye length for the plasma. A voltage source and an ion current meter are operably coupled to the second grid, the latter of which is configured to measure an ion flux onto the ion collector and to transmit a signal that represents the measured ion flux. The method includes selectively and variably biasing the second grid relative to the first grid.