摘要:
A semiconductor wafer has a bevel contour formed along the periphery thereof, products formed on the wafer, and an ID mark formed on the bevel contour. The ID mark shows at least the properties, manufacturing conditions, and test results of the products.
摘要:
A process control system includes a client computer which prepares a correlation between a reference monitored value of apparatus information and a feature quantity, a manufacturing execution system which prepares a processing recipe describing, as a first setting value in an actual manufacturing process, a value of the control parameter, an apparatus information collection section which collects an objective monitored value of the apparatus information in operation of the actual manufacturing process with the first setting value, a feature quantity calculation section which calculates a value of a feature quantity corresponding to the objective monitored value based on the correlation, a parameter calculation section which calculates a second setting value in the actual manufacturing process on the basis of the value of the feature quantity, and an apparatus control unit which changes the processing recipe with the second setting value being as a setting value of the second step.
摘要:
A process control system includes a client computer which prepares a correlation between a reference monitored value of apparatus information and a feature quantity, a manufacturing execution system which prepares a processing recipe describing, as a first setting value in an actual manufacturing process, a value of the control parameter, an apparatus information collection section which collects an objective monitored value of the apparatus information in operation of the actual manufacturing process with the first setting value, a feature quantity calculation section which calculates a value of a feature quantity corresponding to the objective monitored value based on the correlation, a parameter calculation section which calculates a second setting value in the actual manufacturing process on the basis of the value of the feature quantity, and an apparatus control unit which changes the processing recipe with the second setting value being as a setting value of the second step.
摘要:
A defect detection system includes a data acquiring section that acquires time series data of device parameter of each manufacturing device including an exposure device, and information on defect distribution in an area with a size smaller than a chip area size, a pattern classifying section that assembles the information on the defect distribution in units of shot or chip areas, and classifies the distributions to a defect pattern, a feature quantity calculating section that processes the time series data and calculates a feature quantity, a significant difference test section that calculates occurrence frequency distributions of the shot or chip area wherein the defect pattern to the feature quantity exists and does not exist, respectively, and determines the presence/absence of significant difference between the frequency distributions, and a defect detecting section that detects the device parameter corresponding to the feature quantity as the cause of defect of the defect pattern.
摘要:
A process control system includes a client computer which prepares a correlation between a reference monitored value of apparatus information and a feature quantity, a manufacturing execution system which prepares a processing recipe describing, as a first setting value in an actual manufacturing process, a value of the control parameter, an apparatus information collection section which collects an objective monitored value of the apparatus information in operation of the actual manufacturing process with the first setting value, a feature quantity calculation section which calculates a value of a feature quantity corresponding to the objective monitored value based on the correlation, a parameter calculation section which calculates a second setting value in the actual manufacturing process on the basis of the value of the feature quantity, and an apparatus control unit which changes the processing recipe with the second setting value being as a setting value of the second step.
摘要:
A defect detection system includes a data acquiring section that acquires time series data of device parameter of each manufacturing device including an exposure device, and information on defect distribution in an area with a size smaller than a chip area size, a pattern classifying section that assembles the information on the defect distribution in units of shot or chip areas, and classifies the distributions to a defect pattern, a feature quantity calculating section that processes the time series data and calculates a feature quantity, a significant difference test section that calculates occurrence frequency distributions of the shot or chip area wherein the defect pattern to the feature quantity exists and does not exist, respectively, and determines the presence/absence of significant difference between the frequency distributions, and a defect detecting section that detects the device parameter corresponding to the feature quantity as the cause of defect of the defect pattern.
摘要:
A method for manufacturing a semiconductor device has measuring a finished state of a wafer in a completed process, estimating an in-surface tendency of the wafer based on a result of the measuring, estimating a surface characteristic of the wafer based on the estimated in-surface tendency, setting a process condition of a uncompleted process based on the estimated surface characteristic and controlling the uncompleted process based on the set process condition.
摘要:
A control system for a manufacturing apparatus includes manufacturing information input unit acquiring time series data of apparatus parameters controlling manufacturing apparatuses; failure pattern classification module classifying in-plane distributions of failures of each of the wafers into failure patterns; an index calculation unit configured to statistically process the time series data by algorithms to calculate indices corresponding to the respective algorithms; an index analysis unit providing first and second frequency distributions of the indices categorized with and without the target failure pattern, to implement significance test between the first and second frequency distributions; and an abnormal parameter extraction unit extracting failure cause index of failure pattern by comparing value of the significance test with test reference value.
摘要:
A process-state management system encompasses: a plurality of production machines; a control server configured to collectively control at least part of the production machines; a management server including a data-linking module configured to link operation-management data of the production machines with corresponding management information transmitted from the control server, respectively, the management server analyze the operation-management data linked with the management information with a common analysis application; and a management database configured to store the operation-management data linked with the management information.
摘要:
A management system includes a variable-period setting unit that sets a variable period in which quality-control values vary. Then, a retrieving unit retrieves events sandwiching the variable period. The events can be a maintenance of the semiconductor manufacturing device and/or a change of a correction value. An analysis-period setting unit sets an analysis period for analyzing a cause of variation of the quality-control values between the events retrieved by the retrieving unit.