Abstract:
A plasma processing system. The processing system comprises a process chamber having first and second ends arranged such that the first end opposes the second end. A substrate support is positioned at the first end of the process chamber and is configured to support a substrate. An exhaust system is positioned proximate the second end of the process chamber and draws a vacuum on the process chamber. Between the exhaust system and substrate support there is a plurality of super-Debye openings, and between the exhaust system and the plurality of super-Debye openings is a plurality of sub-Debye openings. The super-Debye openings are configured to limit diffusion of plasma while the sub-Debye openings are configured to quench plasma.
Abstract:
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.
Abstract:
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.
Abstract:
The invention provides a systems and methods for creating Double Pattern (DP) structures on a patterned wafer in real-time using Dual Pattern Contact-Etch (DPCE) processing sequences and associated Contact-Etch-Multi-Input/Multi-Output (CE-MIMO) models. The DPCE processing sequences can include one or more contact-etch procedures, one or more measurement procedures, one or more contact-etch modeling procedures, and one or more contact-etch verification procedures. The CE-MIMO model uses dynamically interacting behavioral modeling between multiple layers and/or multiple contact-etch procedures. The multiple layers and/or the multiple contact-etch procedures can be associated with the creation of lines, trenches, vias, spacers, contacts, and gate structures that can be created during Double Patterning (DP) procedures.
Abstract:
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.
Abstract:
A method for treating a substrate with plasma over a wide pressure range is described. The method comprises exposing the substrate to a low pressure plasma in a process chamber. Further, the method comprises exposing the substrate to a high pressure plasma in the process chamber.
Abstract:
The invention can provide apparatus and methods of creating metal gate structures on wafers in real-time using Lithography-Etch-Lithography-Etch (LELE) processing sequence. Real-time data and/or historical data associated with LELE processing sequences can be fed forward and/or fed back as fixed variables or constrained variables in internal-Integrated-Metrology modules (i-IMM) to improve the accuracy of the metal gate structures.
Abstract:
Method and system for producing a neutral beam source is described. The neutral beam source comprises a plasma generation system for forming a first plasma in a first plasma region, a plasma heating system for heating electrons from the first plasma region in a second plasma region to form a second plasma, and a neutralizer grid for neutralizing ion species from the second plasma in the second plasma region. Furthermore, the neutral beam source comprises a pumping system that enables use of the neutral beam source for semiconductor processing applications, such as etching processes.
Abstract:
The invention can provide apparatus and methods of processing a substrate in real-time using subsystems and processing sequences created to improve the etch resistance of photoresist materials. In addition, the improved photoresist layer can be used to more accurately control gate and/or spacer critical dimensions (CDs), to control gate and/or spacer CD uniformity, and to eliminate line edge roughness (LER) and line width roughness (LWR).
Abstract:
The invention provides a method of processing a wafer using multilayer processing sequences and Multi-Layer/Multi-Input/Multi-Output (MLMIMO) models and libraries that can include one or more measurement procedures, one or more Poly-Etch (P-E) sequences, and one or more metal-gate etch sequences. The MLMIMO process control uses dynamically interacting behavioral modeling between multiple layers and/or multiple process steps. The multiple layers and/or the multiple process steps can be associated with the creation of lines, trenches, vias, spacers, contacts, and gate structures that can be created using isotropic and/or anisotropic etch processes.