Patents by Inventor Christopher Maher

Christopher Maher 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).

  • Publication number: 20240124610
    Abstract: The present disclosure provides methods for treating a subject having a HER2 non-amplified (HER2-negative) cancer or low HER2 expressing (HER2-low) cancer, comprising detecting expression of a BCAR4 gene fusion in a biological sample from the subject. If expression of the BCAR4 gene fusion is detected, a HER2-targeted cancer treatment is administered to the subject; if expression of the BCAR4 gene fusion is not detected, a cancer treatment that is not HER2-targeted is administered to the subject. Methods of predicting response to a HER2-targeted cancer treatment and detecting BCAR4 or BCAR4 gene fusion activation are also provided.
    Type: Application
    Filed: May 16, 2023
    Publication date: April 18, 2024
    Applicant: Washington University
    Inventors: Nicole Maher, Christopher Maher, Andrew Nickless, Jin Zhang, Amy Ly, Jace Webster
  • Publication number: 20230031898
    Abstract: Disclosed here in are methods and kits for identifying a prostate cancer treatment for a subject. The methods include obtaining a fluid sample from the subject, the fluid sample comprising noncellular DNA (ncDNA) from the subject, transforming the ncDNA into a plurality of genomic variations to determine if the ncDNA contains castration-resistant structural variations including at least one of a genomic alteration in AR encoding an androgen receptor and a genomic alteration of an AR enhancer; and identifying the prostate cancer treatment for the subject based on the plurality of genomic variations.
    Type: Application
    Filed: December 10, 2020
    Publication date: February 2, 2023
    Inventors: Aadel CHAUDHURI, Christopher MAHER, Russell PACHYNSKI
  • Publication number: 20210277395
    Abstract: Among the various aspects of the present disclosure is the provision of a methods and compositions for modulating IncRNAs and methods of treatment based on IncRNA expression.
    Type: Application
    Filed: January 26, 2021
    Publication date: September 9, 2021
    Applicant: Washington University
    Inventors: Christopher Maher, Jessica Silva-Fisher, Ryan Fields
  • Patent number: 11047806
    Abstract: Methods and systems for discovery of defects of interest (DOI) buried within three dimensional semiconductor structures and recipe optimization are described herein. The volume of a semiconductor wafer subject to defect discovery and verification is reduced by storing images associated with a subset of the total depth of the semiconductor structures under measurement. Image patches associated with defect locations at one or more focus planes or focus ranges are recorded. The number of optical modes under consideration is reduced based on any of a comparison of one or more measured wafer level defect signatures and one or more expected wafer level defect signatures, measured defect signal to noise ratio, and defects verified without de-processing. Furthermore, verified defects and recorded images are employed to train a nuisance filter and optimize the measurement recipe. The trained nuisance filter is applied to defect images to select the optimal optical mode for production.
    Type: Grant
    Filed: November 29, 2017
    Date of Patent: June 29, 2021
    Assignee: KLA-Tencor Corporation
    Inventors: Santosh Bhattacharyya, Devashish Sharma, Christopher Maher, Bo Hua, Philip Measor, Robert M. Danen
  • Patent number: 10535131
    Abstract: A defect detection method includes acquiring a reference image; selecting a target region of the reference image; identifying, based on a matching metric, one or more comparative regions of the reference image corresponding to the target region; acquiring a test image; masking the test image with the target region of the reference image and the one or more comparative regions of the reference image; defining a defect threshold for the target region in the test image based on the one or more comparative regions in the test image; and determining whether the target region of the test image contains a defect based on the defect threshold.
    Type: Grant
    Filed: November 14, 2016
    Date of Patent: January 14, 2020
    Assignee: KLA-Tencor Corporation
    Inventors: Christopher Maher, Bjorn Brauer, Vijayakumar Ramachandran, Laurent Karsenti, Eliezer Rosengaus, John R. Jordan, III, Roni Miller
  • Publication number: 20180149603
    Abstract: Methods and systems for discovery of defects of interest (DOI) buried within three dimensional semiconductor structures and recipe optimization are described herein. The volume of a semiconductor wafer subject to defect discovery and verification is reduced by storing images associated with a subset of the total depth of the semiconductor structures under measurement. Image patches associated with defect locations at one or more focus planes or focus ranges are recorded. The number of optical modes under consideration is reduced based on any of a comparison of one or more measured wafer level defect signatures and one or more expected wafer level defect signatures, measured defect signal to noise ratio, and defects verified without de-processing. Furthermore, verified defects and recorded images are employed to train a nuisance filter and optimize the measurement recipe. The trained nuisance filter is applied to defect images to select the optimal optical mode for production.
    Type: Application
    Filed: November 29, 2017
    Publication date: May 31, 2018
    Inventors: Santosh Bhattacharyya, Devashish Sharma, Christopher Maher, Bo Hua, Philip Measor, Robert M. Danen
  • Patent number: 9754761
    Abstract: An inspection tool includes a controller that is configured to generate a scan pattern for an electron beam to image areas of interest on the wafer. The scan pattern minimizes dwell time of the electron beam on the surface of the wafer between the areas of interest. At least one stage speed and at least one raster pattern can be selected based on the areas of interest. The controller sends instructions to electron beam optics to direct the electron beam at the areas of interest on the surface of the wafer using the scan pattern.
    Type: Grant
    Filed: May 23, 2016
    Date of Patent: September 5, 2017
    Assignee: KLA-Tencor Corporation
    Inventors: Hong Xiao, Christopher Maher
  • Publication number: 20170140516
    Abstract: A defect detection method includes acquiring a reference image; selecting a target region of the reference image; identifying, based on a matching metric, one or more comparative regions of the reference image corresponding to the target region; acquiring a test image; masking the test image with the target region of the reference image and the one or more comparative regions of the reference image; defining a defect threshold for the target region in the test image based on the one or more comparative regions in the test image; and determining whether the target region of the test image contains a defect based on the defect threshold.
    Type: Application
    Filed: November 14, 2016
    Publication date: May 18, 2017
    Inventors: Christopher Maher, Bjorn Brauer, Vijayakumar Ramachandran, Laurent Karsenti, Eliezer Rosengaus, John R. Jordan, III, Roni Miller
  • Publication number: 20160351373
    Abstract: An inspection tool includes a controller that is configured to generate a scan pattern for an electron beam to image areas of interest on the wafer. The scan pattern minimizes dwell time of the electron beam on the surface of the wafer between the areas of interest. At least one stage speed and at least one raster pattern can be selected based on the areas of interest. The controller sends instructions to electron beam optics to direct the electron beam at the areas of interest on the surface of the wafer using the scan pattern.
    Type: Application
    Filed: May 23, 2016
    Publication date: December 1, 2016
    Inventors: Hong Xiao, Christopher Maher
  • Patent number: 8989479
    Abstract: The present invention includes searching imagery data in order to identify one or more patterned regions on a semiconductor wafer, generating one or more virtual Fourier filter (VFF) working areas, acquiring an initial set of imagery data from the VFF working areas, defining VFF training blocks within the identified patterned regions of the VFF working areas utilizing the initial set of imagery data, wherein each VFF training block is defined to encompass a portion of the identified patterned region displaying a selected repeating pattern, calculating an initial spectrum for each VFF training block utilizing the initial set of imagery data from the VFF training blocks, and generating a VFF for each training block by identifying frequencies of the initial spectrum having maxima in the frequency domain, wherein the VFF is configured to null the magnitude of the initial spectrum at the frequencies identified to display spectral maxima.
    Type: Grant
    Filed: August 1, 2011
    Date of Patent: March 24, 2015
    Assignee: KLA-Tencor Corporation
    Inventors: Lisheng Gao, Kenong Wu, Allen Park, Ellis Chang, Khurram Zafar, Junqing Huang, Ping Gu, Christopher Maher, Grace H. Chen, Songnian Rong, Liu-Ming Wu
  • Publication number: 20120141013
    Abstract: The present invention includes searching imagery data in order to identify one or more patterned regions on a semiconductor wafer, generating one or more virtual Fourier filter (VFF) working areas, acquiring an initial set of imagery data from the VFF working areas, defining VFF training blocks within the identified patterned regions of the VFF working areas utilizing the initial set of imagery data, wherein each VFF training block is defined to encompass a portion of the identified patterned region displaying a selected repeating pattern, calculating an initial spectrum for each VFF training block utilizing the initial set of imagery data from the VFF training blocks, and generating a VFF for each training block by identifying frequencies of the initial spectrum having maxima in the frequency domain, wherein the VFF is configured to null the magnitude of the initial spectrum at the frequencies identified to display spectral maxima.
    Type: Application
    Filed: August 1, 2011
    Publication date: June 7, 2012
    Applicant: KLA-TENCOR CORPORATION
    Inventors: Lisheng Gao, Kenong Wu, Allen Park, Ellis Chang, Khurram Zafar, Junqing Huang, Ping Gu, Christopher Maher, Grace H. Chen, Songnian Rong, Liu-Ming Wu