Patents by Inventor Naoshin Haque

Naoshin Haque 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: 11688052
    Abstract: Methods and systems for providing weak pattern (or hotspot) detection and quantification are disclosed. A weak pattern detection and quantification system may include a wafer inspection tool configured to inspect a wafer and detect defects present on the wafer. The system may also include at least one processor in communication with the wafer inspection tool. The at least one processor may be configured to: perform pattern grouping on the detected defects based on design of the wafer; identify regions of interest based on the pattern grouping; identify weak patterns contained in the identified regions of interest, the weak patterns being patterns deviating from the design by an amount greater than a threshold; validate the weak patterns identified; and report the validated weak patterns or facilitate revision of the design of the wafer based on the validated weak patterns.
    Type: Grant
    Filed: August 10, 2020
    Date of Patent: June 27, 2023
    Assignee: KLA Corporation
    Inventors: Naoshin Haque, Allen Park, Ajay Gupta
  • Publication number: 20200372630
    Abstract: Methods and systems for providing weak pattern (or hotspot) detection and quantification are disclosed. A weak pattern detection and quantification system may include a wafer inspection tool configured to inspect a wafer and detect defects present on the wafer. The system may also include at least one processor in communication with the wafer inspection tool. The at least one processor may be configured to: perform pattern grouping on the detected defects based on design of the wafer; identify regions of interest based on the pattern grouping; identify weak patterns contained in the identified regions of interest, the weak patterns being patterns deviating from the design by an amount greater than a threshold; validate the weak patterns identified; and report the validated weak patterns or facilitate revision of the design of the wafer based on the validated weak patterns.
    Type: Application
    Filed: August 10, 2020
    Publication date: November 26, 2020
    Inventors: Naoshin Haque, Allen Park, Ajay Gupta
  • Patent number: 10740888
    Abstract: Methods and systems for providing weak pattern (or hotspot) detection and quantification are disclosed. A weak pattern detection and quantification system may include a wafer inspection tool configured to inspect a wafer and detect defects present on the wafer. The system may also include at least one processor in communication with the wafer inspection tool. The at least one processor may be configured to: perform pattern grouping on the detected defects based on design of the wafer; identify regions of interest based on the pattern grouping; identify weak patterns contained in the identified regions of interest, the weak patterns being patterns deviating from the design by an amount greater than a threshold; validate the identified weak patterns; and report the validated weak patterns or facilitate revision of the design of the wafer based on the validated weak patterns.
    Type: Grant
    Filed: September 26, 2016
    Date of Patent: August 11, 2020
    Assignee: KLA-Tencor Corporation
    Inventors: Naoshin Haque, Allen Park, Ajay Gupta
  • Publication number: 20170309009
    Abstract: Methods and systems for providing weak pattern (or hotspot) detection and quantification are disclosed. A weak pattern detection and quantification system may include a wafer inspection tool configured to inspect a wafer and detect defects present on the wafer. The system may also include at least one processor in communication with the wafer inspection tool. The at least one processor may be configured to: perform pattern grouping on the detected defects based on design of the wafer; identify regions of interest based on the pattern grouping; identify weak patterns contained in the regions of interest identified, the weak patterns being patterns deviating from the design by an amount greater than a threshold; validate the weak patterns identified; and report the validated weak patterns or facilitate revision of the design of the wafer based on the validated weak patterns.
    Type: Application
    Filed: September 26, 2016
    Publication date: October 26, 2017
    Inventors: Naoshin Haque, Allen Park, Ajay Gupta
  • Publication number: 20170076911
    Abstract: Systems and methods for discovering defects on a wafer are provided. One method includes detecting defects on a wafer by applying a threshold to output generated by a detector in a first scan of the wafer and determining values for features of the detected defects. The method also includes automatically ranking the features, identifying feature cut-lines to group the defect into bins, and, for each of the bins, determining one or more parameters that if applied to the values for the features of the defects in each of the bins will result in a predetermined number of the defects in each of the bins. The method also includes applying the one or more determined parameters to the output generated by the detector in a second scan of the wafer to generate a defect population that has a predetermined defect count and is diversified in the values for the features.
    Type: Application
    Filed: November 22, 2016
    Publication date: March 16, 2017
    Inventors: Hong Chen, Kenong Wu, Martin Plihal, Vidur Pandita, Ravikumar Sanapala, Vivek Bhagat, Rahul Lakhawat, Oksen Baris, Rajesh Ramachandran, Naoshin Haque
  • Patent number: 9518934
    Abstract: Systems and methods for discovering defects on a wafer are provided. One method includes detecting defects on a wafer by applying a threshold to output generated by a detector in a first scan of the wafer and determining values for features of the detected defects. The method also includes automatically ranking the features, identifying feature cut-lines to group the defect into bins, and, for each of the bins, determining one or more parameters that if applied to the values for the features of the defects in each of the bins will result in a predetermined number of the defects in each of the bins. The method also includes applying the one or more determined parameters to the output generated by the detector in a second scan of the wafer to generate a defect population that has a predetermined defect count and is diversified in the values for the features.
    Type: Grant
    Filed: November 3, 2015
    Date of Patent: December 13, 2016
    Assignee: KLA-Tencor Corp.
    Inventors: Hong Chen, Kenong Wu, Martin Plihal, Vidur Pandita, Ravikumar Sanapala, Vivek Bhagat, Rahul Lakhawat, Oksen Baris, Rajesh Ramachandran, Naoshin Haque
  • Publication number: 20160123898
    Abstract: Systems and methods for discovering defects on a wafer are provided. One method includes detecting defects on a wafer by applying a threshold to output generated by a detector in a first scan of the wafer and determining values for features of the detected defects. The method also includes automatically ranking the features, identifying feature cut-lines to group the defect into bins, and, for each of the bins, determining one or more parameters that if applied to the values for the features of the defects in each of the bins will result in a predetermined number of the defects in each of the bins. The method also includes applying the one or more determined parameters to the output generated by the detector in a second scan of the wafer to generate a defect population that has a predetermined defect count and is diversified in the values for the features.
    Type: Application
    Filed: November 3, 2015
    Publication date: May 5, 2016
    Inventors: Hong Chen, Kenong Wu, Martin Plihal, Vidur Pandita, Ravikumar Sanapala, Vivek Bhagat, Rahul Lakhawat, Oksen Baris, Rajesh Ramachandran, Naoshin Haque