Abstract:
A plasma processing system includes a processing chamber, a substrate holder configured to hold a substrate for plasma processing, and a gas injection assembly. The gas injection assembly includes a first evacuation port located substantially in a center of the gas injection assembly and configured to evacuate gases from a central region of the substrate, and a gas injection system configured to inject gases in the process chamber. The plasma processing system also includes a second evacuation port configured to evacuate gases from a peripheral region surrounding the central region of the substrate.
Abstract:
A gas injection system (10) is provided for a processing reactor and a method is provided for reducing transport of particulate material onto a substrate (12) during process gas start-up. The system (10) includes a two-way valve (40) having an inlet (42) connected to a mass flow controller (30), and first and second outlets (44, 46). The system (10) includes a principle gas feed line (50) connecting the first outlet (44) of the valve (40) to an inject plate (24) within a vacuum chamber (20) at a position above a substrate (12), and a start-up line (60) connecting the second outlet (46) to an orifice (62) in the chamber (20) at a position not above the substrate (12). Alternatively, the system includes a valve having an inlet connected to the mass flow controller, and a first outlet. In the alternative system, a first gas feed line connects the first outlet of the valve to the inject plate (24), and an acoustical dampening device is provided within the first gas feed line.
Abstract:
A substrate holder for supporting a substrate in a processing system includes a temperature controlled support base having a first temperature, and a substrate support opposing the temperature controlled support base and configured to support the substrate. Also included is one or more heating elements coupled to the substrate support and configured to heat the substrate support to a second temperature above the first temperature, and a thermal insulator disposed between the temperature controlled support base and the substrate support. The thermal insulator includes a non-uniform spatial variation of the heat transfer coefficient (W/m2-K) through the thermal insulator between the temperature controlled support base and the substrate support.
Abstract translation:用于在处理系统中支撑衬底的衬底保持器包括具有第一温度的温度控制的支撑基座和与温度受控的支撑基座相对并且被配置为支撑衬底的衬底支撑件。 还包括一个或多个加热元件,其耦合到衬底支撑件并且被配置为将衬底支撑件加热到高于第一温度的第二温度,以及设置在温度受控支撑基底和衬底支撑件之间的热绝缘体。 热绝缘体包括通过温度受控支撑基底和基底支撑件之间的热绝缘体的传热系数(W / m 2 SUP -K)的不均匀的空间变化。
Abstract:
An equipment status monitoring system having at least one multi-modal resonator included as a part of a semiconductor processing system and a power source coupled to the at least one multi-modal resonator. The power source is configured to produce a microwave excitation signal corresponding to at least one mode of the multi-modal resonator and emit the microwave excitation signal into the semiconductor processing chamber. The system includes a detector coupled to the at least one multi-modal resonator and configured to measure the excitation signal. The system includes a control system connected to the detector and configured to provide a comparison of at least one measured excitation signal with a normal excitation signal corresponding to a normal status.
Abstract:
A wall film monitoring system includes first and second microwave mirrors in a plasma processing chamber each having a concave surface. The concave surface of the second mirror is oriented opposite the concave surface of the first mirror. A power source is coupled to the first mirror and configured to produce a microwave signal. A detector is coupled to at least one of the first mirror and the second mirror and configured to measure a vacuum resonance voltage of the microwave signal. A control system is connected to the detector that compares a first measured voltage and a second measured voltage and determines whether the second voltage exceeds a threshold value. A method of monitoring wall film in a plasma chamber includes loading a wafer in the chamber, setting a frequency of a microwave signal output to a resonance frequency, and measuring a first vacuum resonance voltage of the microwave signal. The method includes processing the wafer, measuring a second vacuum resonance voltage of the microwave signal, and determining whether the second measured voltage exceeds a threshold value using the first measured voltage as a reference value.
Abstract:
A plasma processing system including a process chamber, a substrate holder provided within the process chamber, and a gas injection system configured to supply a first gas and a second gas to the process chamber. The system includes a controller that controls the gas injection system to continuously flow a first gas flow to the process chamber and to pulse a second gas flow to the process chamber at a first time. The controller pulses a RF power to the substrate holder at a second time. A method of operating a plasma processing system is provided that includes adjusting a background pressure in a process chamber, where the background pressure is established by flowing a first gas flow using a gas injection system, and igniting a processing plasma in the process chamber. The method includes pulsing a second gas flow using the gas injection system at a first time, and pulsing a RF power to a substrate holder at a second time.
Abstract:
Apparatus including a chamber and a coil system for converting a field-generating current into a RF magnetic field in the chamber when the chamber contains an ionized gas which interacts with the RF magnetic field to create a plasma. The plasma is contained within a cylindrical region enclosed by the chamber, which region has a longitudinal center axis, and the region is considered to be made up of a plurality of annular zones concentric with the center axis and disposed at respectively different distances from the center axis. The coil system is composed of: a plurality of individual coils each positioned and dimensioned to produce a RF magnetic field which predominantly influences a respective annular zone.
Abstract:
A method and system are provided for monitoring erosion of system components in a plasma processing system. The system components contain emitters that are capable of producing characteristic fluorescent light emission when exposed to a plasma. The method utilizes optical emission to monitor fluorescent light emission from the emitters for determining system component status. The method can evaluate erosion of system components in a plasma, by monitoring fluorescent light emission from the emitters. Consumable system components that can be monitored using the method include rings, shields, electrodes, baffles, and liners.
Abstract:
The present invention provides an apparatus and a method of generating and controlling plasma formed in a capacitively coupled plasma region between a plasma electrode and a bias electrode. The plasma electrode includes a plurality of sub-electrodes that are electrically insulated from one another. Radio frequency plasma generating electric power is provided to the plasma electrode. Radio frequency bias electric power, at a lower frequency than the plasma generating radio frequency electric power, is also provided. A first portion of the bias electric power is provided to the bias electrode, and a second portion of the bias electric power is provided to the plasma electrode. At least one filter, impedance matching network, phase shifter, and power splitter are used to affect the electric power provided to the electrodes.
Abstract:
A method for forming a fine pattern on a substrate includes providing a substrate including a material with an initial pattern formed thereon and having a first line width, performing a self-limiting oxidation and/or nitridation process on a surface of the material and thereby forming an oxide, a nitride, or an oxynitride film on a surface of the initial pattern, and removing the oxide, nitride, or oxynitride film. The method further includes repeating the formation and removal of the oxide, nitride, or oxynitride film to form a second pattern having a second line width that is smaller than the first line width of the initial pattern. The patterned material can contain silicon, a silicon-containing material, a metal, or a metal-nitride, and the self-limiting oxidation process can include exposure to vapor phase ozone, atomic oxygen generated by non-ionizing electromagnetic (EM) radiation, atomic nitrogen generated by ionizing or non-ionizing EM radiation, or a combination thereof.