摘要:
A method and apparatus for providing near real-time fault detection in a manufacturing process is provided. The apparatus includes a processing tool adapted to manufacture a processing piece and an interface, coupled to the processing tool, for receiving operational data from the processing tool related to the manufacture of the processing piece, and product data defining characteristics of the processing piece. In one embodiment, the processing tool is in the form of semiconductor fabrication equipment and the processing piece is a silicon wafer. A fault detection unit is provided to determine if a fault condition exists with the processing tool from the operational data or with the processing piece from the product data. An Advanced Process Control (APC) framework is further provided to receive the operational and product data from the first interface, and to send the data to the fault detection unit.
摘要:
A method is provided for configuring a final data set to use for modeling a manufacturing process, the method including requesting a real-time data set from a real-time database, requesting an historical data set from an historical database, and defining a required format for the final data set. The method also includes combining the real-time data set from the real-time database with the historical data set from the historical database using the required format for the final data set.
摘要:
A method and apparatus for providing fault detection in an Advanced Process Control (APC) framework. A first interface receives operational state data of a processing tool related to the manufacture of a processing piece. The state data is sent from the first interface to a fault detection unit. A fault detection unit determines if a fault condition exists with the processing tool based upon the state data. A predetermined action is performed on the processing tool in response to the presence of a fault condition. In accordance with one embodiment, the predetermined action is to shutdown the processing tool so as to prevent further production of faulty wafers.
摘要:
A method and apparatus for performing manufacturing system analysis upon a manufacturing network. Real-time production data is collected. The real-time production data is stored in a static file database. A real-time data flow is emulated using said real-time production data from said static file database. A reactive function analysis is performed.
摘要:
A method and apparatus for providing fault detection in an Advanced Process Control (APC) framework. A first interface receives operational state data of a processing tool related to the manufacture of a processing piece. The state data is sent from the first interface to a fault detection unit. A fault detection unit determines if a fault condition exists with the processing tool based upon the state data. A predetermined action is performed on the processing tool in response to the presence of a fault condition. In accordance with one embodiment, the predetermined action is to shutdown the processing tool so as to prevent further production of faulty wafers.
摘要:
The present invention provides for a method and an apparatus for fault model analysis in manufacturing tools. A sequence of semiconductor devices is processed through a manufacturing process. Production data resulting from the processing of the semiconductor devices is acquired. A fault model analysis is performed using the acquired production data.
摘要:
The present invention provides a method and apparatus for performing automated development and updating of a manufacturing model for a manufacturing process. An initial manufacturing model is developed. Tolerances of the manufacturing model are expanded using additional production data. The manufacturing model is then re-developed using the expanded tolerances.
摘要:
A method is provided, the method comprising preheating a rapid thermal processing chamber according to a preheating recipe and processing a first plurality of workpieces in the rapid thermal processing chamber. The method also comprises performing first parameter measurements on first and second workpieces of the first plurality of workpieces, the first parameter measurements indicative of first processing differences between the first and second workpieces, and forming a first output signal corresponding to the first parameter measurements. The method further comprises adjusting the preheating recipe based on the first output signal and using the adjusted preheating recipe to preheat the rapid thermal processing chamber for processing a second plurality of workpieces in the rapid thermal processing chamber to reduce second processing differences between first and second workpieces of the second plurality of workpieces.
摘要:
A system and method for detecting faults in wafer fabrication process tools by acquiring real-time process parameter signal data samples used to model the process performed by the process tool. The system includes a computer system including a DAQ device, which acquires the data samples, and a fault detector program which employs a process model program to analyze the data samples for the purpose of detecting faults. The model uses data samples in a reference database acquired from previous known good runs of the process tool. The fault detector notifies a process tool operator of any faults which occur thus potentially avoiding wafer scrap and potentially improving mean time between failures. The fault detector also receives notification of the occurrence of process events from the process tool, such as the start or end of processing a wafer, which the fault detector uses to start and stop the data acquisition, respectively. The fault detector also receives notification of the occurrence of a new process recipe and uses the recipe information to select the appropriate model for modeling the data samples. The fault detector employs a standard data exchange interface, such as DDE, between the fault detector and the model, thus facilitating modular selection of models best suited to the particular fabrication process being modeled. Embodiments are contemplated which use a UPM model, a PCA model, or a neural network model.
摘要:
Methods of optimizing a preheat recipe for rapid thermal processing workpieces are provided. In one aspect, a method of manufacturing is provided that includes preheating a rapid thermal processing chamber according to a preheating recipe and processing a first plurality of workpieces in the rapid thermal processing chamber. Parameter measurements are performed on a first workpiece and a second workpiece of the first plurality of workpieces. The parameter measurements are indicative of processing differences between the first and second workpieces. An output signal is formed corresponding to the parameter measurements and a control signal based on the output signal is used to adjust the preheating recipe for preheating the rapid thermal processing chamber for processing a second plurality of workpieces in the rapid thermal processing chamber to reduce processing differences between first and second workpieces of the second plurality of workpieces.