摘要:
A system of supplying processing fluid to a substrate processing apparatus having walls, the inner surfaces of which define a processing chamber in which a substrate supporting susceptor is located. The system consists of a number of fluid storages, each which stores a separate processing fluid, at least two fluid conduits along which processing fluid flows from the fluid storages to the processing apparatus and a fluid inlet which connects the fluid conduits to the processing chamber. The inlet has a separate fluid passage, corresponding to each of the fluid conduits, formed along it. Each fluid passage opens at or near an inner surface of a wall to together define a fluid mixing zone, so that fluid moving along one fluid passage is prevented from mixing with fluid moving along any other passage until reaching the mixing zone.
摘要:
An apparatus and a concomitant method for controlling coolant (air) flow proximate a reaction chamber within a workpiece processing system such that the temperature of a wall of the reaction chamber is maintained at a predefined target temperature. The target temperature is typically a temperature that optimizes a process concurrently being accomplished within the chamber, e.g., utilizing one temperature during deposition processes and a different temperature during cleaning processes. The apparatus contains a temperature measuring device to measure the temperature of the chamber wall. The measured temperature is compared to the predefined target temperature. A closed loop system controls the air flow proximate the chamber walls such that the measured temperature becomes substantially equal to the target temperature. Air flow control is provided by an air flow control device located within an inlet conduit that supplies air to a shroud for channeling the air past the reaction chamber. The shroud forms a portion of a housing which supports and encloses the reaction chamber.
摘要:
The present disclosure is directed to a process of depositing a layer of a material on a wafer, which comprises depositing a layer of the same material to be deposited on the wafer on the back surface of a susceptor.
摘要:
The present invention discloses an apparatus and method for the turbulent mixing of gases. The invention has particular application when it is desired to produce a gas mixture including a very small quantity (ppm or less) of at least one component gas and/or wherein there is a substantial density difference between the component gases to be used to make up the gas mixture. The apparatus comprises: a tubular housing; at least two orifices or jets located near one end of the housing, through which gases to be mixed can enter the interior of the housing, the orifices or jets being oriented so that a first portion of gas flowing from a first orifice or jet will directly impact a second portion of gas flowing from a second orifice or jet, whereby frictional mixing of the gas components is achieved, further, the centerline of the first orifice or jet is offset from the centerline of the second, opposing orifice or jet, so as to produce a swirling action within the tubular interior of the gas mixer; and an exit opening at the opposite end of the tubular housing.
摘要:
A wafer processing reactor having an input manifold to enable control of a process gas flow profile over a wafer that is being processed. Both process gas relative concentrations and flow rates can be controlled, thereby enabling an increased uniformity of processing across the wafer.
摘要:
A reflector array employs a number of linear, tubular heater lamps arranged in a circle concentric with the substrate to be heated. Some of the lamps have focusing reflectors and the remainder have dispersive reflectors. A peripheral cylindrical reflector surrounds the lamps and their associated reflectors. The combined reflectors permit balancing the thermal radiation intensity across the surface of the substrate.
摘要:
Disclosed are a method and a system for measuring the sea floor temperature gradient several meters into the formation at each of an array of measurement sites, and using these gradients to explore for and characterize hydrocarbon deposits. The measurements can be taken with a special lance driven into the otherwise undisturbed sea floor.
摘要:
Techniques for evaluating the accuracy of a predicted effectiveness of an improvement to an infrastructure include collecting data, representative of at least one pre-defined metric, from the infrastructure during first and second time periods corresponding to before and after a change has been implemented, respectively. A machine learning system can receive compiled data representative of the first time period and generate corresponding machine learning data. A machine learning results evaluator can empirically analyze the generated machine learning data. An implementer can implement the change to the infrastructure based at least in part on the data from a machine learning data outputer. A system performance improvement evaluator can compare the compiled data representative of the first time period to that of the second time period to determine a difference, if any, and compare the difference, if any, to a prediction based on the generated machine learning data.
摘要:
The present application provides methods and systems for quantitatively predicting an effectiveness of a proposed capital improvement project based on one or more previous capital improvement projects representative of one or more physical assets and including one or more attributes that includes defining a first sample pool from the previous capital improvement project data in which said previous capital improvement project has been performed, defining a second sample in which the previous capital improvement project has not been performed, the second sample pool including one or more attribute values that are the same as, or similar to, the attribute values for the first sample pool, generating a performance metric for each of the first and second sample pools, comparing the performance metric from the first sample pool with the performance metric from the second sample pool to determine a net performance metric, and, generating a prediction of effectiveness of the proposed capital improvement project concerning based on said net performance metric.
摘要:
A machine learning system creates failure-susceptibility rankings for feeder cables in a utility's electrical distribution system. The machine learning system employs martingale boosting algorithms and Support Vector Machine (SVM) algorithms to generate a feeder failure prediction model, which is trained on static and dynamic feeder attribute data. Feeders are dynamically ranked by failure susceptibility and the rankings displayed to utility operators and engineers so that they can proactively service the distribution system to prevent local power outages. The feeder rankings may be used to redirect power flows and to prioritize repairs. A feedback loop is established to evaluate the responses of the electrical distribution system to field actions taken to optimize preventive maintenance programs.