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:
A method and system are provided for monitoring material buildup on 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 material buildup on 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:
A dry non-plasma treatment system and method for removing oxide material is described. The treatment system is configured to provide chemical treatment of one or more substrates, wherein each substrate is exposed to a gaseous chemistry, including HF and optionally NH3, under controlled conditions including surface temperature and gas pressure. Furthermore, the treatment system is configured to provide thermal treatment of each substrate, wherein each substrate is thermally treated to remove the chemically treated surfaces on each substrate.
Abstract:
A method and system (1) for utilizing shaped orifices (e.g., sonic and simple orifices, and divergent nozzles) in the gas inject system (20) as part of a plasma process system. By utilizing the shaped orifices, directionality of gas flow (25) can be improved. This improvement is especially beneficial in high aspect ratio processing.
Abstract:
The present invention provides a diagnostic system for plasma processing, wherein the diagnostic system comprises a multi-modal resonator, a power source, a detector, and a controller. The controller is coupled to the power source and the detector and it is configured to provide a man-machine interface for performing several monitoring and controlling functions associated with the diagnostic system including: a Gunn diode voltage monitor, a Gunn diode current monitor, a varactor diode voltage monitor, a detector voltage monitor, a varactor voltage control, a varactor voltage sweep control, a resonance lock-on control, a graphical user control, and an electron density monitor. The diagnostic system can further provide a remote controller coupled to the controller and configured to provide a remote man-machine interface. The remote man-machine interface. The remote man-machine interface can provide a graphical user interface in order to permit remote control of the diagnostic system by an operator. In addition, the present invention provides several methods of controlling the diagnostic system in order to perform both monitor and control functions.
Abstract:
A method and apparatus for generating and controlling a plasma (130) formed in a capacitively coupled plasma system (100) having a plasma electrode (140) and a bias electrode in the form of a workpiece support member (170), wherein the plasma electrode is unitary and has multiple regions (Ri) defined by a plurality of RF power feed lines (156) and the RF power delivered thereto. The electrode regions may also be defined as electrode segments (420) separated by insulators (426). A set of process parameters A={n, τi, Φi, Pi, S; Li} is defined; wherein n is the number of RF feed lines connected to the electrode upper surface at locations Li, τi is the on-time of the RF power for the ith RF feed line, Φi is the phase of the ith RF feed line relative to a select one of the other RF feed lines, Pi is the RF power delivered to the electrode through the ith RF feed line at location Li, and S is the sequencing of RF power to the electrode through the RF feed lines. One or more of these parameters are adjusted so that operation of the plasma system results in a workpiece (176) being processed with a desired amount or degree of process uniformity.
Abstract translation:一种用于产生和控制形成在电容耦合等离子体系统(100)中的等离子体(130)的方法和装置,其具有工件支撑构件(170)形式的等离子体电极(140)和偏置电极,其中等离子体电极 是单一的并且具有由多个RF馈电线(156)限定的多个区域(RF)和传递给其的RF功率。 电极区域也可以被定义为由绝缘体(426)分离的电极段(420)。 一组过程参数A = {n,τi,i,P i, 被定义; 其中n是在位置L i1处连接到电极上表面的RF馈送线的数量,τi是针对i 是相对于其他RF馈线中选择的一个RF馈线的第i个RF馈线的相位,P < SUB> i SUB>是通过位置L i i处的第i个RF馈线传送到电极的RF功率,S是RF功率到 电极通过RF馈线。 调整这些参数中的一个或多个,使得等离子体系统的操作导致以期望的量或程度的均匀度处理工件(176)。
Abstract:
A plasma processing device comprising a gas injection system is described, wherein the gas injection system comprises a gas injection assembly body, a consumable gas inject plate coupled to the gas injection assembly body, and a pressure sensor coupled to a gas injection plenum formed by the gas injection system body and the consumable gas inject plate. The gas injection system is configured to receive a process gas from at least one mass flow controller and distribute the process gas to the processing region within the plasma processing device, and the pressure sensor is configured to measure a gas injection pressure within the gas injection plenum. A controller, coupled to the pressure sensor, is configured to receive a signal from the pressure sensor and to determine a state of the consumable gas inject plate based upon the signal. A method of determining the state of the consumable gas inject plate comprises: measuring a change in the gas injection pressure associated with either a change in the process gas mass flow rate or the processing pressure; determining a response time for the change in pressure; and comparing the response time during erosion to a response time during no erosion.
Abstract:
A method and system for utilizing a gas injection plate comprising a number of shaped orifices (e.g., sonic and simple orifices, and divergent nozzles) in the gas inject system as part of a plasma processing system. By utilizing the shaped orifices, directionality of gas flow can be improved. This improvement is especially beneficial in high aspect ratio processing.
Abstract:
A substrate holder for holding a substrate (e.g., a wafer or an LCD panel) during plasma processing. The substrate holder is a stack of processing elements which each perform at least one function. The elements include an electrostatic chuck (102), an He gas distribution system (122), multi-zone heating plates (132), and multi-zone cooling system (152). Each element is designed to match the characteristic of the processing system, e.g., by applying heat based on a heat loss characteristic of the substrate during normal processing. The integrated design allows for precise control of the operating conditions, including, but not limited to, fast heating and fast cooling of a substrate.
Abstract:
A plasma-processing chamber including pulsed gas injection orifices/nozzles utilized in combination with continuous flow shower head injection orifices is described. The continuous flow shower head injection orifices introduce a continuous flow of gas while the pulsed gas injection orifices/nozzles cyclically inject a high-pressure gas into the chamber. In one embodiment, a central computer may monitor and control pressure measurement devices and utilize the measurements to adjust processing parameters (e.g. pulse duration, pulse repetition rate, and the pulse mass flow rate of processing gases).