Patents by Inventor Richard A. Gottscho

Richard A. Gottscho 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: 20230273516
    Abstract: Vacuum-integrated photoresist-less methods and apparatuses for forming metal hardmasks can provide sub-30 nm patterning resolution. A metal-containing (e.g., metal salt or organometallic compound) film that is sensitive to a patterning agent is deposited on a semiconductor substrate. The metal-containing film is then patterned directly (i.e., without the use of a photoresist) by exposure to the patterning agent in a vacuum ambient to form the metal mask. For example, the metal-containing film is photosensitive and the patterning is conducted using sub-30 nm wavelength optical lithography, such as EUV lithography.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 31, 2023
    Inventors: Jeffrey MARKS, George Andrew ANTONELLI, Richard A. GOTTSCHO, Dennis M. HAUSMANN, Adrien LAVOIE, Thomas Joseph KNISLEY, Sirish K. REDDY, Bhadri N. VARADARAJAN, Artur KOLICS
  • Publication number: 20230266662
    Abstract: Vacuum-integrated photoresist-less methods and apparatuses for forming metal hardmasks can provide sub-30 nm patterning resolution. A metal-containing (e.g., metal salt or organometallic compound) film that is sensitive to a patterning agent is deposited on a semiconductor substrate. The metal-containing film is then patterned directly (i.e., without the use of a photoresist) by exposure to the patterning agent in a vacuum ambient to form the metal mask. For example, the metal-containing film is photosensitive and the patterning is conducted using sub-30 nm wavelength optical lithography, such as EUV lithography.
    Type: Application
    Filed: April 10, 2023
    Publication date: August 24, 2023
    Inventors: Jeffrey MARKS, George Andrew ANTONELLI, Richard A. GOTTSCHO, Dennis M. HAUSMANN, Adrien LAVOIE, Thomas Joseph KNISLEY, Sirish K. REDDY, Bhadri N. VARADARAJAN, Artur KOLICS
  • Patent number: 11520953
    Abstract: Etch in a thermal etch reaction is predicted using a machine learning model. Chemical characteristics of an etch process and associated energies in one or more reaction pathways of a given thermal etch reaction are identified using a quantum mechanical simulation. Labels indicative of etch characteristics may be associated with the chemical characteristics and associated energies of the given thermal etch reaction. The machine learning model can be trained using chemical characteristics and associated energies as independent variables and labels as dependent variables across many different etch reactions of different types. When chemical characteristics and associated energies for a new thermal etch reaction are provided as inputs in the machine learning model, the machine learning model can accurately predict etch characteristics of the new thermal etch reaction as outputs.
    Type: Grant
    Filed: May 3, 2018
    Date of Patent: December 6, 2022
    Assignee: Lam Research Corporation
    Inventors: Thorsten Lill, Andreas Fischer, Ivan L. Berry, III, Nerissa Sue Draeger, Richard A. Gottscho
  • Publication number: 20220319821
    Abstract: A sorption structure defined in a plasma process chamber includes an inner layer having one or more heating elements to heat the sorption structure, a middle section having a coolant flow delivery network through which a coolant circulates to cool the sorption structure to a temperature to allow selective adsorption of by-products released in the process chamber, and a vacuum flow network that is connected to a vacuum line to create low pressure vacuum and remove the by-products released from the sorption structure. A lattice structure is defined over the middle section, the lattice structure includes network of openings defined in a plurality of layers to increase surface area for improved by-products adsorption. The inner section is disposed adjacent to the middle section. An outer layer of the lattice structure faces an interior region of the chamber.
    Type: Application
    Filed: August 6, 2020
    Publication date: October 6, 2022
    Inventors: Hossein Sadeghi, Richard A. Gottscho
  • Publication number: 20220270237
    Abstract: Defects on a substrate comprising electronic components can be classified with a computational defect analysis system that may be implemented in multiple stages. For example, a first stage classification engine may process metrology data to produce an initial classification of defects. A second stage classification engine may use the initial classification, along with manufacturing information and/or prior defect knowledge to output probabilities that the defects are caused by one or more potential sources.
    Type: Application
    Filed: February 11, 2022
    Publication date: August 25, 2022
    Applicant: Lam Research Corporation
    Inventors: Kapil Sawlani, Richard A. Gottscho, Michal Danek, Keith Wells, Keith Hansen
  • Publication number: 20220244645
    Abstract: Development of resists are useful, for example, to form a patterning mask in the context of high-resolution patterning. Development can be accomplished using a halide-containing chemistry such as a hydrogen halide. A metal-containing resist film may be deposited on a semiconductor substrate using a dry or wet deposition technique. The resist film may be an EUV-sensitive organo-metal oxide or organo-metal-containing thin film resist. After exposure, the photopatterned metal-containing resist is developed using wet or dry development.
    Type: Application
    Filed: June 25, 2020
    Publication date: August 4, 2022
    Inventors: Samantha SiamHwa Tan, Jengyi Yu, Da Li, Yiwen Fan, Yang Pan, Jeffrey Marks, Richard A. Gottscho, Daniel Peter, Timothy William Weidman, Boris Volosskiy, Wenbing Yang
  • Publication number: 20220075260
    Abstract: Vacuum-integrated photoresist-less methods and apparatuses for forming metal hardmasks can provide sub-30 nm patterning resolution. A metal-containing (e.g., metal salt or organometallic compound) film that is sensitive to a patterning agent is deposited on a semiconductor substrate. The metal-containing film is then patterned directly (i.e., without the use of a photoresist) by exposure to the patterning agent in a vacuum ambient to form the metal mask. For example, the metal-containing film is photosensitive and the patterning is conducted using sub-30 nm wavelength optical lithography, such as EUV lithography.
    Type: Application
    Filed: November 16, 2021
    Publication date: March 10, 2022
    Applicant: Lam Research Corporation
    Inventors: Jeffrey Marks, George Andrew Antonelli, Richard A. Gottscho, Dennis M. Hausmann, Adrien LaVoie, Thomas Joseph Knisley, Sirish K. Reddy, Bhadri N. Varadarajan, Artur Kolics
  • Patent number: 11263737
    Abstract: Defects on a substrate comprising electronic components can be classified with a computational defect analysis system that may be implemented in multiple stages. For example, a first stage classification engine may process metrology data to produce an initial classification of defects. A second stage classification engine may use the initial classification, along with manufacturing information and/or prior defect knowledge to output probabilities that the defects are caused by one or more potential sources.
    Type: Grant
    Filed: January 10, 2019
    Date of Patent: March 1, 2022
    Assignee: Lam Research Corporation
    Inventors: Kapil Sawlani, Richard A. Gottscho, Michal Danek, Keith Wells, Keith Hansen
  • Patent number: 11209729
    Abstract: Vacuum-integrated photoresist-less methods and apparatuses for forming metal hardmasks can provide sub-30 nm patterning resolution. A metal-containing (e.g., metal salt or organometallic compound) film that is sensitive to a patterning agent is deposited on a semiconductor substrate. The metal-containing film is then patterned directly (i.e., without the use of a photoresist) by exposure to the patterning agent in a vacuum ambient to form the metal mask. For example, the metal-containing film is photosensitive and the patterning is conducted using sub-30 nm wavelength optical lithography, such as EUV lithography.
    Type: Grant
    Filed: November 21, 2019
    Date of Patent: December 28, 2021
    Assignee: Lam Research Corporation
    Inventors: Jeffrey Marks, George Andrew Antonelli, Richard A. Gottscho, Dennis M. Hausmann, Adrien LaVoie, Thomas Joseph Knisley, Sirish K. Reddy, Bhadri N. Varadarajan, Artur Kolics
  • Patent number: 10831096
    Abstract: Vacuum-integrated photoresist-less methods and apparatuses for forming metal hardmasks can provide sub-30 nm patterning resolution. A metal-containing (e.g., metal salt or organometallic compound) film that is sensitive to a patterning agent is deposited on a semiconductor substrate. The metal-containing film is then patterned directly (i.e., without the use of a photoresist) by exposure to the patterning agent in a vacuum ambient to form the metal mask. For example, the metal-containing film is photosensitive and the patterning is conducted using sub-30 nm wavelength optical lithography, such as EUV lithography.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: November 10, 2020
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Jeffrey Marks, George Andrew Antonelli, Richard A. Gottscho, Dennis M. Hausmann, Adrien LaVoie, Thomas Joseph Knisley, Sirish K. Reddy, Bhadri N. Varadarajan, Artur Kolics
  • Publication number: 20200226742
    Abstract: Defects on a substrate comprising electronic components can be classified with a computational defect analysis system that may be implemented in multiple stages. For example, a first stage classification engine may process metrology data to produce an initial classification of defects. A second stage classification engine may use the initial classification, along with manufacturing information and/or prior defect knowledge to output probabilities that the defects are caused by one or more potential sources.
    Type: Application
    Filed: January 10, 2019
    Publication date: July 16, 2020
    Inventors: Kapil Sawlani, Richard A. Gottscho, Michal Danek, Keith Wells, Keith Hansen
  • Publication number: 20200089104
    Abstract: Vacuum-integrated photoresist-less methods and apparatuses for forming metal hardmasks can provide sub-30 nm patterning resolution. A metal-containing (e.g., metal salt or organometallic compound) film that is sensitive to a patterning agent is deposited on a semiconductor substrate. The metal-containing film is then patterned directly (i.e., without the use of a photoresist) by exposure to the patterning agent in a vacuum ambient to form the metal mask. For example, the metal-containing film is photosensitive and the patterning is conducted using sub-30 nm wavelength optical lithography, such as EUV lithography.
    Type: Application
    Filed: November 21, 2019
    Publication date: March 19, 2020
    Applicant: Lam Research Corporation
    Inventors: Jeffrey Marks, George Andrew Antonelli, Richard A. Gottscho, Dennis M. Hausmann, Adrien LaVoie, Thomas Joseph Knisley, Sirish K. Reddy, Bhadri N. Varadarajan, Artur Kolics
  • Patent number: 10585347
    Abstract: Disclosed are methods of generating a proximity-corrected design layout for photoresist to be used in an etch operation. The methods may include identifying a feature in an initial design layout, and estimating one or more quantities characteristic of an in-feature plasma flux (IFPF) within the feature during the etch operation. The methods may further include estimating a quantity characteristic of an edge placement error (EPE) of the feature by comparing the one or more quantities characteristic of the IFPF to those in a look-up table (LUT, and/or through application of a multivariate model trained on the LUT, e.g., constructed through machine learning methods (MLM)) which associates values of the quantity characteristic of EPE with values of the one or more quantities characteristics of the IFPF. Thereafter, the initial design layout may be modified based on at the determined quantity characteristic of EPE.
    Type: Grant
    Filed: December 18, 2018
    Date of Patent: March 10, 2020
    Assignee: Lam Research Corporation
    Inventors: Saravanapriyan Sriraman, Richard Wise, Harmeet Singh, Alex Paterson, Andrew D. Bailey, III, Vahid Vahedi, Richard A. Gottscho
  • Patent number: 10514598
    Abstract: Vacuum-integrated photoresist-less methods and apparatuses for forming metal hardmasks can provide sub-30 nm patterning resolution. A metal-containing (e.g., metal salt or organometallic compound) film that is sensitive to a patterning agent is deposited on a semiconductor substrate. The metal-containing film is then patterned directly (i.e., without the use of a photoresist) by exposure to the patterning agent in a vacuum ambient to form the metal mask. For example, the metal-containing film is photosensitive and the patterning is conducted using sub-30 nm wavelength optical lithography, such as EUV lithography.
    Type: Grant
    Filed: August 30, 2017
    Date of Patent: December 24, 2019
    Assignee: LAM RESEARCH CORPORATION
    Inventors: Jeffrey Marks, George Andrew Antonelli, Richard A. Gottscho, Dennis M. Hausmann, Adrien LaVoie, Thomas Joseph Knisley, Sirish K. Reddy, Bhadri N. Varadarajan, Artur Kolics
  • Publication number: 20190340316
    Abstract: Etch in a thermal etch reaction is predicted using a machine learning model. Chemical characteristics of an etch process and associated energies in one or more reaction pathways of a given thermal etch reaction are identified using a quantum mechanical simulation. Labels indicative of etch characteristics may be associated with the chemical characteristics and associated energies of the given thermal etch reaction. The machine learning model can be trained using chemical characteristics and associated energies as independent variables and labels as dependent variables across many different etch reactions of different types. When chemical characteristics and associated energies for a new thermal etch reaction are provided as inputs in the machine learning model, the machine learning model can accurately predict etch characteristics of the new thermal etch reaction as outputs.
    Type: Application
    Filed: May 3, 2018
    Publication date: November 7, 2019
    Inventors: Thorsten Lill, Andreas Fischer, Ivan L. Berry, III, Nerissa Sue Draeger, Richard A. Gottscho
  • Patent number: 10424460
    Abstract: A plasma source includes a ring plasma chamber, a primary winding around an exterior of the ring plasma chamber, multiple ferrites, wherein the ring plasma chamber passes through each of the ferrites and multiple plasma chamber outlets coupling the plasma chamber to a process chamber. Each one of the plasma chamber outlets having a respective plasma restriction. A system and method for generating a plasma are also described.
    Type: Grant
    Filed: August 22, 2016
    Date of Patent: September 24, 2019
    Assignee: Lam Research Corporation
    Inventors: Ali Shajii, Richard Gottscho, Souheil Benzerrouk, Andrew Cowe, Siddharth P. Nagarkatti, William R. Entley
  • Patent number: 10386828
    Abstract: Disclosed are methods of optimizing a computerized model which relates etched feature profile on a semiconductor device to a set of independent input parameters via the use of a plurality of model parameters. The optimization methods may include modifying the model parameters so that an etch profile generated with the model is such that it reduces a metric indicative of the combined differences between experimental etch profiles resulting from experimental etch processes performed using different sets of values for sets of independent input parameters and computed etch profiles generated from the model and corresponding to the experimental etch profiles. Said metric may be calculated by projecting computed and corresponding experimental etch profiles onto a reduced-dimensional subspace used to calculate a difference between the profiles. Also disclosed herein are systems employing such optimized models, as well as methods of using such models to approximately determine the profile of an etched feature.
    Type: Grant
    Filed: December 17, 2015
    Date of Patent: August 20, 2019
    Assignee: Lam Research Corporation
    Inventors: Mehmet Derya Tetiker, Saravanapriyan Sriraman, Andrew D. Bailey, III, Juline Shoeb, Alex Paterson, Richard A. Gottscho
  • Publication number: 20190250501
    Abstract: Disclosed are methods of generating a proximity-corrected design layout for photoresist to be used in an etch operation. The methods may include identifying a feature in an initial design layout, and estimating one or more quantities characteristic of an in-feature plasma flux (IFPF) within the feature during the etch operation. The methods may further include estimating a quantity characteristic of an edge placement error (EPE) of the feature by comparing the one or more quantities characteristic of the IFPF to those in a look-up table (LUT, and/or through application of a multivariate model trained on the LUT, e.g., constructed through machine learning methods (MLM)) which associates values of the quantity characteristic of EPE with values of the one or more quantities characteristics of the IFPF. Thereafter, the initial design layout may be modified based on at the determined quantity characteristic of EPE.
    Type: Application
    Filed: December 18, 2018
    Publication date: August 15, 2019
    Inventors: Saravanapriyan Sriraman, Richard Wise, Harmeet Singh, Alex Paterson, Andrew D. Bailey, III, Vahid Vahedi, Richard A. Gottscho
  • Patent number: 10332727
    Abstract: A plasma processing method is provided. The method includes receiving a substrate in a substrate support that is configured to be movable along a linear path. The method includes providing at least one process gas into a plasma microchamber. The plasma microchamber is disposed in a processing head having a length that is at least longer than a diameter of the substrate, and said length is perpendicular to said linear path. The method includes generating a plasma in the plasma microchamber by applying power to the plasma microchamber and applying a bias power to the substrate support. The plasma microchamber has an open side process area that is oriented and directed over a surface to be processed, and the open side process area is less than an area of the surface to be processed. The method includes translating said substrate support along said linear path while said microchamber generates the plasma in the plasma microchamber for exposing said plasma over the substrate.
    Type: Grant
    Filed: January 22, 2018
    Date of Patent: June 25, 2019
    Assignee: Lam Research Corporation
    Inventors: Richard Gottscho, Rajinder Dhindsa, Mukund Srinivasan
  • Patent number: 10303830
    Abstract: Disclosed are methods of optimizing a computer model which relates the etch profile of a feature on a semiconductor substrate to a set of independent input parameters (A), via the use of a plurality of model parameters (B). In some embodiments, the methods may include modifying one or more values of B so as to reduce a metric indicative of the differences between computed reflectance spectra generated from the model and corresponding experimental reflectance spectra with respect to one or more sets of values of A. In some embodiments, calculating the metric may include an operation of projecting the computed and corresponding experimental reflectance spectra onto a reduced-dimensional subspace and calculating the difference between the reflectance spectra as projected onto the subspace. Also disclosed are etch systems implementing such optimized computer models.
    Type: Grant
    Filed: May 4, 2018
    Date of Patent: May 28, 2019
    Assignee: Lam Research Corporation
    Inventors: Mehmet Derya Tetiker, Saravanapriyan Sriraman, Andrew D. Bailey, III, Alex Paterson, Richard A. Gottscho