Patents by Inventor Sukesh Janubhai Patel

Sukesh Janubhai Patel has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Patent number: 10635993
    Abstract: A system and method for learning and/or optimizing processes related to semiconductor manufacturing is provided. A learning component generates a set of candidate process models based on process data associated with one or more fabrication tools. The learning component also selects a particular process model from the set of candidate process models that is associated with lowest error. An optimization component generates a set of candidate solutions associated with the particular process model. The optimization component also selects a particular solution from the set of candidate solutions based on a target output value and an output value associated with the particular solution.
    Type: Grant
    Filed: June 28, 2016
    Date of Patent: April 28, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel
  • Patent number: 10571900
    Abstract: A system and method autonomously determines the impact of respective tool parameters on tool performance in a semiconductor manufacturing system. A parameter impact identification system receives tool parameter and tool performance data for one or more process runs of the semiconductor fabrication system and generates a separate function for each tool parameter characterizing the behavior of a tool performance indicator in terms of a single one of the tool parameters. Each function is then scored according to how well the function predicts the actual behavior of the tool performance indicator, or based on a determined sensitivity of the tool performance indicator to changes in the single tool parameter. The tool parameters are then ranked based on these scores, and a reduced set of critical tool parameters is derived based on the ranking. The tool performance indicator can then be modeled based on this reduced set of tool parameters.
    Type: Grant
    Filed: August 2, 2017
    Date of Patent: February 25, 2020
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel, Wolfgang Polak, Aaron Archer Waterman, Orion Wolfe
  • Patent number: 10228678
    Abstract: Systems and techniques to facilitate tool failure analysis associated with fabrication processes are presented. A monitoring component determines a candidate tool failure associated with one or more fabrication tools based on sensor data generated by a set of sensors associated with the one or more fabrication tools. A signature component generates a signature dataset for the candidate tool failure based on data associated with the one or more fabrication tools. A comparison component compares the candidate tool failure to at least one previously determined tool failure based on the signature dataset and at least one other signature dataset associated with the at least one previously determined tool failure.
    Type: Grant
    Filed: July 22, 2015
    Date of Patent: March 12, 2019
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel, Wolfgang Polak, Orion Wolfe
  • Patent number: 10133265
    Abstract: A system and method for autonomously tracing a cause of particle contamination during semiconductor manufacture is provided. A contamination analysis system analyzes tool process logs together with particle contamination data for multiple process runs to determine a relationship between systematic particle contamination levels and one or more tool parameters. This relationship is used to predict expected contamination levels associated with regular usage of the tool, and to identify which tool parameters have the largest impact on expected levels of particle contamination. The contamination analysis system also identifies process logs showing unexpected deviant particle contamination levels that exceed expected contamination levels, and traces the cause of the deviant particle contamination to particular process log parameter events.
    Type: Grant
    Filed: July 26, 2016
    Date of Patent: November 20, 2018
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Aaron Archer Waterman, Yuichiro Morozumi, Tetsushi Ozaki, Sanjeev Kaushal, Sukesh Janubhai Patel
  • Publication number: 20170329318
    Abstract: A system and method autonomously determines the impact of respective tool parameters on tool performance in a semiconductor manufacturing system. A parameter impact identification system receives tool parameter and tool performance data for one or more process runs of the semiconductor fabrication system and generates a separate function for each tool parameter characterizing the behavior of a tool performance indicator in terms of a single one of the tool parameters. Each function is then scored according to how well the function predicts the actual behavior of the tool performance indicator, or based on a determined sensitivity of the tool performance indicator to changes in the single tool parameter. The tool parameters are then ranked based on these scores, and a reduced set of critical tool parameters is derived based on the ranking. The tool performance indicator can then be modeled based on this reduced set of tool parameters.
    Type: Application
    Filed: August 2, 2017
    Publication date: November 16, 2017
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel, Wolfgang Polak, Aaron Archer Waterman, Orion Wolfe
  • Patent number: 9746849
    Abstract: A system and method autonomously determines the impact of respective tool parameters on tool performance in a semiconductor manufacturing system. A parameter impact identification system receives tool parameter and performance data for one or more process runs of the semiconductor fabrication system and generates a separate function for each tool parameter characterizing the behavior of a tool performance indicator in terms of a single one of the tool parameters. Each function is then scored according to how well the function predicts the behavior of the tool performance indicator, or based on a determined sensitivity of the tool performance indicator to changes in the single tool parameter. The tool parameters are then ranked based on these scores, and a reduced set of critical tool parameters is derived based on the ranking. The tool performance indicator can then be modeled based on this reduced set of tool parameters.
    Type: Grant
    Filed: November 9, 2012
    Date of Patent: August 29, 2017
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel, Wolfgang Polak, Aaron Archer Waterman, Orion Wolfe
  • Publication number: 20170023927
    Abstract: Systems and techniques to facilitate tool failure analysis associated with fabrication processes are presented. A monitoring component determines a candidate tool failure associated with one or more fabrication tools based on sensor data generated by a set of sensors associated with the one or more fabrication tools. A signature component generates a signature dataset for the candidate tool failure based on data associated with the one or more fabrication tools. A comparison component compares the candidate tool failure to at least one previously determined tool failure based on the signature dataset and at least one other signature dataset associated with the at least one previously determined tool failure.
    Type: Application
    Filed: July 22, 2015
    Publication date: January 26, 2017
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel, Wolfgang Polak, Orion Wolfe
  • Publication number: 20160334782
    Abstract: A system and method for autonomously tracing a cause of particle contamination during semiconductor manufacture is provided. A contamination analysis system analyzes tool process logs together with particle contamination data for multiple process runs to determine a relationship between systematic particle contamination levels and one or more tool parameters. This relationship is used to predict expected contamination levels associated with regular usage of the tool, and to identify which tool parameters have the largest impact on expected levels of particle contamination. The contamination analysis system also identifies process logs showing unexpected deviant particle contamination levels that exceed expected contamination levels, and traces the cause of the deviant particle contamination to particular process log parameter events.
    Type: Application
    Filed: July 26, 2016
    Publication date: November 17, 2016
    Inventors: Aaron Archer Waterman, Yuichiro Morozumi, Tetsushi Ozaki, Sanjeev Kaushal, Sukesh Janubhai Patel
  • Publication number: 20160307116
    Abstract: A system and method for learning and/or optimizing processes related to semiconductor manufacturing is provided. A learning component generates a set of candidate process models based on process data associated with one or more fabrication tools. The learning component also selects a particular process model from the set of candidate process models that is associated with lowest error. An optimization component generates a set of candidate solutions associated with the particular process model. The optimization component also selects a particular solution from the set of candidate solutions based on a target output value and an output value associated with the particular solution.
    Type: Application
    Filed: June 28, 2016
    Publication date: October 20, 2016
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel
  • Patent number: 9424528
    Abstract: Performance of a manufacturing tool is optimized. Optimization relies on recipe drifting and generation of knowledge that capture relationships among product output metrics and input material measurement(s) and recipe parameters. Optimized recipe parameters are extracted from a basis of learned functions that predict output metrics for a current state of the manufacturing tool and measurements of input material(s). Drifting and learning are related and lead to dynamic optimization of tool performance, which enables optimized output from the manufacturing tool as the operation conditions of the tool changes. Features of recipe drifting and associated learning can be autonomously or externally configured through suitable user interfaces, which also can be drifted to optimize end-user interaction.
    Type: Grant
    Filed: April 23, 2014
    Date of Patent: August 23, 2016
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel, Kenji Sugishima
  • Patent number: 9405289
    Abstract: A system and method for autonomously tracing a cause of particle contamination during semiconductor manufacture is provided. A contamination analysis system analyzes tool process logs together with particle contamination data for multiple process runs to determine a relationship between systematic particle contamination levels and one or more tool parameters. This relationship is used to predict expected contamination levels associated with regular usage of the tool, and to identify which tool parameters have the largest impact on expected levels of particle contamination. The contamination analysis system also identifies process logs showing unexpected deviant particle contamination levels that exceed expected contamination levels, and traces the cause of the deviant particle contamination to particular process log parameter events.
    Type: Grant
    Filed: December 6, 2012
    Date of Patent: August 2, 2016
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Aaron Archer Waterman, Yuichiro Morozumi, Tetsushi Ozaki, Sanjeev Kaushal, Sukesh Janubhai Patel
  • Patent number: 9396443
    Abstract: A system and method for learning and/or optimizing processes related to semiconductor manufacturing is provided. A learning component generates a set of candidate process models based on process data associated with one or more fabrication tools. The learning component also selects a particular process model from the set of candidate process models that is associated with lowest error. An optimization component generates a set of candidate solutions associated with the particular process model. The optimization component also selects a particular solution from the set of candidate solutions based on a target output value and an output value associated with the particular solution.
    Type: Grant
    Filed: December 5, 2013
    Date of Patent: July 19, 2016
    Assignee: TOKYO ELECTRON LIMITED
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel
  • Patent number: 9275335
    Abstract: An autonomous biologically based learning tool system and a method that the tool system employs for learning and analysis are provided. The autonomous biologically based learning tool system includes (a) one or more tool systems that perform a set of specific tasks or processes and generate assets and data related to the assets that characterize the various processes and associated tool performance; (b) an interaction manager that receives and formats the data, and (c) an autonomous learning system based on biological principles of learning. The autonomous learning system comprises a memory platform and a processing platform that communicate through a network. Both the memory platform and the processing platform include functional components and memories that can be defined recursively. Knowledge generated and accumulated in the autonomous learning system(s) can be cast into semantic networks that can be employed for learning and driving tool goals based on context.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: March 1, 2016
    Assignee: Tokyo Electron Limited
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel, Kenji Sugishima
  • Publication number: 20150332167
    Abstract: Systems and techniques for modeling and/or analyzing manufacturing processes are presented. A dataset component generates a plurality of binary classification datasets based on process data associated with one or more fabrication tools. A learning component generates a plurality of learned models based on the plurality of binary classification datasets and applies a weight to the plurality of learned models based on a number of data samples associated with the plurality of binary classification datasets to generate a weighted plurality of learned models. A merging component merges the weighted plurality of learned models to generate a process model for the process data.
    Type: Application
    Filed: May 13, 2014
    Publication date: November 19, 2015
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel
  • Publication number: 20150161520
    Abstract: A system and method for learning and/or optimizing processes related to semiconductor manufacturing is provided. A learning component generates a set of candidate process models based on process data associated with one or more fabrication tools. The learning component also selects a particular process model from the set of candidate process models that is associated with lowest error. An optimization component generates a set of candidate solutions associated with the particular process model. The optimization component also selects a particular solution from the set of candidate solutions based on a target output value and an output value associated with the particular solution.
    Type: Application
    Filed: December 5, 2013
    Publication date: June 11, 2015
    Applicant: Tokyo Electron Limited
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel
  • Patent number: 8954184
    Abstract: System(s) and method(s) are provided for adjustment and analysis of performance of a tool through integration of tool operational data and spectroscopic data related to the tool. Such integration results in consolidated data that enable, in part, learning at least one relationship amongst selected portions of the consolidated data. Learning is performed autonomously without human intervention. Adjustment of performance of the tool relies at least in part on a learned relationship and includes generation of process recipe parameter(s) that can adjust a manufacturing process in order to produce a satisfactory tool performance in response to implementation of the manufacturing process. A process recipe parameter can be generated by solving an inverse problem based on the learned relationship.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: February 10, 2015
    Assignee: Tokyo Electron Limited
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel, Kenji Sugishima
  • Publication number: 20140304196
    Abstract: The subject disclosure relates to automatically learning relationships among a plurality of manufacturing tool parameters as applied to arbitrary semiconductor manufacturing tools and a graphical user interface that is supported, at least in part, by an autonomous learning system. The graphical user interface can create one or more matrixes based on received data and can further generate additional matrices by transforming the one or more matrixes. A series of windows can be output, wherein the series of windows, provide performance analysis that comprises a matching between a focus chamber and a reference chamber. In an aspect, the focus chamber and the reference chamber can be different chambers. In another aspect, the focus chamber and the reference chamber can be the same chamber, which provides analysis of the deterioration in performance of the same chamber over time.
    Type: Application
    Filed: April 7, 2014
    Publication date: October 9, 2014
    Inventors: Sanjeev Kaushal, Kenji Sugishima, Sukesh Janubhai Patel, Robert Filman, Wolfgang Polak, Orion Wolfe, Jessie Burger
  • Publication number: 20140229409
    Abstract: Performance of a manufacturing tool is optimized. Optimization relies on recipe drifting and generation of knowledge that capture relationships among product output metrics and input material measurement(s) and recipe parameters. Optimized recipe parameters are extracted from a basis of learned functions that predict output metrics for a current state of the manufacturing tool and measurements of input material(s). Drifting and learning are related and lead to dynamic optimization of tool performance, which enables optimized output from the manufacturing tool as the operation conditions of the tool changes. Features of recipe drifting and associated learning can be autonomously or externally configured through suitable user interfaces, which also can be drifted to optimize end-user interaction.
    Type: Application
    Filed: April 23, 2014
    Publication date: August 14, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel, Kenji Sugishima
  • Publication number: 20140163712
    Abstract: A system and method for autonomously tracing a cause of particle contamination during semiconductor manufacture is provided. A contamination analysis system analyzes tool process logs together with particle contamination data for multiple process runs to determine a relationship between systematic particle contamination levels and one or more tool parameters. This relationship is used to predict expected contamination levels associated with regular usage of the tool, and to identify which tool parameters have the largest impact on expected levels of particle contamination. The contamination analysis system also identifies process logs showing unexpected deviant particle contamination levels that exceed expected contamination levels, and traces the cause of the deviant particle contamination to particular process log parameter events.
    Type: Application
    Filed: December 6, 2012
    Publication date: June 12, 2014
    Applicant: TOKYO ELECTRON LIMITED
    Inventors: Aaron Archer Waterman, Yuichiro Morozumi, Tetsushi Ozaki, Sanjeev Kaushal, Sukesh Janubhai Patel
  • Patent number: 8744607
    Abstract: Performance of a manufacturing tool is optimized. Optimization relies on recipe drifting and generation of knowledge that capture relationships among product output metrics and input material measurement(s) and recipe parameters. Optimized recipe parameters are extracted from a basis of learned functions that predict output metrics for a current state of the manufacturing tool and measurements of input material(s). Drifting and learning are related and lead to dynamic optimization of tool performance, which enables optimized output from the manufacturing tool as the operation conditions of the tool changes. Features of recipe drifting and associated learning can be autonomously or externally configured through suitable user interfaces, which also can be drifted to optimize end-user interaction.
    Type: Grant
    Filed: February 11, 2013
    Date of Patent: June 3, 2014
    Assignee: Tokyo Electron Limited
    Inventors: Sanjeev Kaushal, Sukesh Janubhai Patel, Kenji Sugishima