Patents by Inventor Markus Gerardus Martinus Maria Van Kraaij

Markus Gerardus Martinus Maria Van Kraaij 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: 10761432
    Abstract: Disclosed is an inspection apparatus for use in lithography. It comprises a support for a substrate carrying a plurality of metrology targets; an optical system for illuminating the targets under predetermined illumination conditions and for detecting predetermined portions of radiation diffracted by the targets under the illumination conditions; a processor arranged to calculate from said detected portions of diffracted radiation a measurement of asymmetry for a specific target; and a controller for causing the optical system and processor to measure asymmetry in at least two of said targets which have different known components of positional offset between structures and smaller sub-structures within a layer on the substrate and calculate from the results of said asymmetry measurements a measurement of a performance parameter of the lithographic process for structures of said smaller size. Also disclosed are substrates provided with a plurality of novel metrology targets formed by a lithographic process.
    Type: Grant
    Filed: April 24, 2018
    Date of Patent: September 1, 2020
    Assignee: ASML Netherlands B.V.
    Inventors: Simon Gijsbert Josephus Mathijssen, Stefan Hunsche, Markus Gerardus Martinus Maria Van Kraaij
  • Patent number: 10732513
    Abstract: A method and apparatus of detection, registration and quantification of an image. The method may include obtaining an image of a lithographically created structure, and applying a level set method to an object, representing the structure, of the image to create a mathematical representation of the structure. The method may include obtaining a first dataset representative of a reference image object of a structure at a nominal condition of a parameter, and obtaining second dataset representative of a template image object of the structure at a non-nominal condition of the parameter. The method may further include obtaining a deformation field representative of changes between the first dataset and the second dataset. The deformation field may be generated by transforming the second dataset to project the template image object onto the reference image object. A dependence relationship between the deformation field and change in the parameter may be obtained.
    Type: Grant
    Filed: September 5, 2019
    Date of Patent: August 4, 2020
    Assignee: ASML Netherlands B.V.
    Inventors: Scott Anderson Middlebrooks, Markus Gerardus Martinus Maria Van Kraaij, Adrianus Cornelis Matheus Koopman, Stefan Hunsche, Willem Marie Julia Marcel Coene
  • Publication number: 20200202054
    Abstract: Parameters of a structure (900) are measured by reconstruction from observed diffracted radiation. The method includes the steps: (a) defining a structure model to represent the structure in a two- or three-dimensional model space; (b) using the structure model to simulate interaction of radiation with the structure; and (c) repeating step (b) while varying parameters of the structure model. The structure model is divided into a series of slices (a-f) along at least a first dimension (Z) of the model space. By the division into slices, a sloping face (904, 906) of at least one sub-structure is approximated by a series of steps (904?, 906?) along at least a second dimension of the model space (X). The number of slices may vary dynamically as the parameters vary. The number of steps approximating said sloping face is maintained constant. Additional cuts (1302, 1304) are introduced, without introducing corresponding steps.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Applicant: ASML Netherlands B.V.
    Inventors: Remco DIRKS, Markus Gerardus Martinus Maria VAN KRAAIJ, Maxim PISARENCO
  • Patent number: 10649345
    Abstract: Methods and apparatuses for estimation of at least one parameter of interest of a feature fabricated on a substrate, the feature having a plurality of structure parameters, the structure parameters including the at least one parameter of interest and one or more nuisance parameters. A receiver receives radiation scattered from one or more measured features on the substrate. A pupil generator generates an unprocessed pupil representation of the received radiation. A matrix multiplier multiplies a transformation matrix with intensities of each of a plurality of pixels of the unprocessed pupil representation to determine a post-processed pupil representation in which effects of the one or more nuisance parameters are mitigated or removed. A parameter estimator estimates the at least one parameter of interest based on the post-processed pupil representation.
    Type: Grant
    Filed: July 16, 2018
    Date of Patent: May 12, 2020
    Assignee: ASML Netherlands B.V.
    Inventors: Maxim Pisarenco, Markus Gerardus Martinus Maria Van Kraaij, Sebastianus Adrianus Goorden
  • Patent number: 10607334
    Abstract: A method and apparatus of detection, registration and quantification of an image. The method may include obtaining an image of a lithographically created structure, and applying a level set method to an object, representing the structure, of the image to create a mathematical representation of the structure. The method may include obtaining a first dataset representative of a reference image object of a structure at a nominal condition of a parameter, and obtaining second dataset representative of a template image object of the structure at a non-nominal condition of the parameter. The method may further include obtaining a deformation field representative of changes between the first dataset and the second dataset. The deformation field may be generated by transforming the second dataset to project the template image object onto the reference image object. A dependence relationship between the deformation field and change in the parameter may be obtained.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: March 31, 2020
    Assignee: ASML Netherlands B.V.
    Inventors: Scott Anderson Middlebrooks, Markus Gerardus Martinus Maria Van Kraaij, Maxim Pisarenco, Adrianus Cornelis Matheus Koopman, Stefan Hunsche, Willem Marie Julia Marcel Coene
  • Patent number: 10592618
    Abstract: Parameters of a structure (900) are measured by reconstruction from observed diffracted radiation. The method includes the steps: (a) defining a structure model to represent the structure in a two- or three-dimensional model space; (b) using the structure model to simulate interaction of radiation with the structure; and (c) repeating step (b) while varying parameters of the structure model. The structure model is divided into a series of slices (a-f) along at least a first dimension (Z) of the model space. By the division into slices, a sloping face (904, 906) of at least one sub-structure is approximated by a series of steps (904?, 906?) along at least a second dimension of the model space (X). The number of slices may vary dynamically as the parameters vary. The number of steps approximating said sloping face is maintained constant. Additional cuts (1302, 1304) are introduced, without introducing corresponding steps.
    Type: Grant
    Filed: July 13, 2016
    Date of Patent: March 17, 2020
    Assignee: ASML Netherlands B.V.
    Inventors: Remco Dirks, Markus Gerardus Martinus Maria Van Kraaij, Maxim Pisarenco
  • Publication number: 20190391498
    Abstract: A method and apparatus of detection, registration and quantification of an image. The method may include obtaining an image of a lithographically created structure, and applying a level set method to an object, representing the structure, of the image to create a mathematical representation of the structure. The method may include obtaining a first dataset representative of a reference image object of a structure at a nominal condition of a parameter, and obtaining second dataset representative of a template image object of the structure at a non-nominal condition of the parameter. The method may further include obtaining a deformation field representative of changes between the first dataset and the second dataset. The deformation field may be generated by transforming the second dataset to project the template image object onto the reference image object. A dependence relationship between the deformation field and change in the parameter may be obtained.
    Type: Application
    Filed: September 5, 2019
    Publication date: December 26, 2019
    Applicant: ASML Netherlands B.V.
    Inventors: Scott Anderson MIDDLEBROOKS, Markus Gerardus Martinus Maria VAN KRAAIJ, Adrianus Cornelis Matheus KOOPMAN, Stefan HUNSCHE, Willem Marie Julia Marcel COENE
  • Publication number: 20190346775
    Abstract: A method of calculating electromagnetic scattering properties of a structure represented as a nominal structure and a structural perturbation, has the steps: 1008 numerically solving a volume integral equation comprising a nominal linear system 1004 to determine a nominal vector field being independent with respect to the structural perturbation; 1010 using a perturbed linear system 1006 to determine an approximation of a vector field perturbation arising from the structural perturbation, by solving a volume integral equation or an adjoint linear system. Matrix-vector multiplication of a nominal linear system matrix convolution operator may be restricted to sub-matrices; and 1012 calculating electromagnetic scattering properties of the structure using the determined nominal vector field and the determined approximation of the vector field perturbation.
    Type: Application
    Filed: April 25, 2019
    Publication date: November 14, 2019
    Applicant: ASML Netherlands B.V.
    Inventors: Markus Gerardus Martinus Maria VAN KRAAIJ, Maxim PISARENCO, Richard QUINTANILHA
  • Publication number: 20190310554
    Abstract: A method including: obtaining a logistic mathematical model predicting the formation of a physical structure created using a patterning process; evaluating the logistic mathematical model to predict formation of a part of the physical structure and generate an output; and adapting, based on the output, an aspect of the patterning process.
    Type: Application
    Filed: November 29, 2017
    Publication date: October 10, 2019
    Applicant: ASML NETHERLANDS B.V.
    Inventors: Scott Anderson MIDDLEBROOKS, Adrianus Cornelis Matheus KOOPMAN, Markus Gerardus Martinus Maria VAN KRAAIJ, Maxim PISARENCO
  • Patent number: 10437157
    Abstract: A method and apparatus of detection, registration and quantification of an image. The method may include obtaining an image of a lithographically created structure, and applying a level set method to an object, representing the structure, of the image to create a mathematical representation of the structure. The method may include obtaining a first dataset representative of a reference image object of a structure at a nominal condition of a parameter, and obtaining second dataset representative of a template image object of the structure at a non-nominal condition of the parameter. The method may further include obtaining a deformation field representative of changes between the first dataset and the second dataset. The deformation field may be generated by transforming the second dataset to project the template image object onto the reference image object. A dependence relationship between the deformation field and change in the parameter may be obtained.
    Type: Grant
    Filed: November 13, 2015
    Date of Patent: October 8, 2019
    Assignee: ASML Netherlands B.V.
    Inventors: Scott Anderson Middlebrooks, Markus Gerardus Martinus Maria Van Kraaij, Adrianus Cornelis Matheus Koopman, Stefan Hunsche, Willem Marie Julia Marcel Coene
  • Publication number: 20190129316
    Abstract: The disclosure relates to methods of determining a value of a parameter of interest of a patterning process, and of cleaning a signal containing information about the parameter of interest. In one arrangement, first and second detected representations of radiation are obtained. The radiation is provided by redirection of polarized incident radiation by a structure. The first and second detected representations are derived respectively from first and second polarization components of the redirected radiation. An asymmetry in the first detected representation comprises a contribution from the parameter of interest and a contribution from one or more other sources of asymmetry. An asymmetry in the second detected representation comprises a larger contribution from said one or more other sources of asymmetry relative to a contribution from the parameter of interest. A combination of the first and second detected representations is used to determine a value of the parameter of interest.
    Type: Application
    Filed: October 25, 2018
    Publication date: May 2, 2019
    Applicant: ASML Netherlands B.V.
    Inventors: Zili ZHOU, Gerbrand VAN DER ZOUW, Nitesh PANDEY, Markus Gerardus Martinus Maria VAN KRAAIJ, Martinus Hubertus Maria VAN WEERT, Anagnostis TSIATMAS, Sergey TARABRIN, Hilko Dirk BOS
  • Publication number: 20190049860
    Abstract: Disclosed is a method of measuring a parameter of a lithographic process, and associated inspection apparatus. The method comprises measuring at least two target structures on a substrate using a plurality of different illumination conditions, the target structures having deliberate overlay biases; to obtain for each target structure an asymmetry measurement representing an overall asymmetry that includes contributions due to (i) the deliberate overlay biases, (ii) an overlay error during forming of the target structure and (iii) any feature asymmetry. A regression analysis is performed on the asymmetry measurement data by fitting a linear regression model to a planar representation of asymmetry measurements for one target structure against asymmetry measurements for another target structure, the linear regression model not necessarily being fitted through an origin of the planar representation. The overlay error can then be determined from a gradient described by the linear regression model.
    Type: Application
    Filed: October 15, 2018
    Publication date: February 14, 2019
    Applicant: ASML Netherlands B.V.
    Inventors: Scott Anderson MIDDLEBROOKS, Niels GEYPEN, Hendrik Jan Hidde SMILDE, Alexander STRAAIJER, Maurits VAN DER SCHAAR, Markus Gerardus Martinus Maria VAN KRAAIJ
  • Patent number: 10146140
    Abstract: A structure of interest is irradiated with radiation for example in the x-ray or EUV waveband, and scattered radiation is detected by a detector (306). A processor (308) calculates a property such as linewidth (CD) by simulating interaction of radiation with a structure and comparing the simulated interaction with the detected radiation. A layered structure model (600, 610) is used to represent the structure in a numerical method. The structure model defines for each layer of the structure a homogeneous background permittivity and for at least one layer a non-homogeneous contrast permittivity. The method uses Maxwell's equation in Born approximation, whereby a product of the contrast permittivity and the total field is approximated by a product of the contrast permittivity and the background field. A computation complexity is reduced by several orders of magnitude compared with known methods.
    Type: Grant
    Filed: October 4, 2016
    Date of Patent: December 4, 2018
    Assignee: ASML Netherlands B.V.
    Inventors: Maxim Pisarenco, Richard Quintanilha, Markus Gerardus Martinus Maria Van Kraaij
  • Patent number: 10126662
    Abstract: Disclosed is a method of measuring a parameter of a lithographic process, and associated inspection apparatus. The method comprises measuring at least two target structures on a substrate using a plurality of different illumination conditions, the target structures having deliberate overlay biases; to obtain for each target structure an asymmetry measurement representing an overall asymmetry that includes contributions due to (i) the deliberate overlay biases, (ii) an overlay error during forming of the target structure and (iii) any feature asymmetry. A regression analysis is performed on the asymmetry measurement data by fitting a linear regression model to a planar representation of asymmetry measurements for one target structure against asymmetry measurements for another target structure, the linear regression model not necessarily being fitted through an origin of the planar representation. The overlay error can then be determined from a gradient described by the linear regression model.
    Type: Grant
    Filed: March 5, 2018
    Date of Patent: November 13, 2018
    Assignee: ASML Netherlands B.V.
    Inventors: Scott Anderson Middlebrooks, Niels Geypen, Hendrik Jan Hidde Smilde, Alexander Straaijer, Maurits Van Der Schaar, Markus Gerardus Martinus Maria Van Kraaij
  • Publication number: 20180239263
    Abstract: Disclosed is an inspection apparatus for use in lithography. It comprises a support for a substrate carrying a plurality of metrology targets; an optical system for illuminating the targets under predetermined illumination conditions and for detecting predetermined portions of radiation diffracted by the targets under the illumination conditions; a processor arranged to calculate from said detected portions of diffracted radiation a measurement of asymmetry for a specific target; and a controller for causing the optical system and processor to measure asymmetry in at least two of said targets which have different known components of positional offset between structures and smaller sub-structures within a layer on the substrate and calculate from the results of said asymmetry measurements a measurement of a performance parameter of the lithographic process for structures of said smaller size. Also disclosed are substrates provided with a plurality of novel metrology targets formed by a lithographic process.
    Type: Application
    Filed: April 24, 2018
    Publication date: August 23, 2018
    Applicant: ASML Netherlands B.V.
    Inventors: Simon Gijsbert Josephus Mathijssen, Stefan Hunsche, Markus Gerardus Martinus Maria Van Kraaij
  • Publication number: 20180196357
    Abstract: Disclosed is a method of measuring a parameter of a lithographic process, and associated inspection apparatus. The method comprises measuring at least two target structures on a substrate using a plurality of different illumination conditions, the target structures having deliberate overlay biases; to obtain for each target structure an asymmetry measurement representing an overall asymmetry that includes contributions due to (i) the deliberate overlay biases, (ii) an overlay error during forming of the target structure and (iii) any feature asymmetry. A regression analysis is performed on the asymmetry measurement data by fitting a linear regression model to a planar representation of asymmetry measurements for one target structure against asymmetry measurements for another target structure, the linear regression model not necessarily being fitted through an origin of the planar representation. The overlay error can then be determined from a gradient described by the linear regression model.
    Type: Application
    Filed: March 5, 2018
    Publication date: July 12, 2018
    Applicant: ASML Netherlands B.V.
    Inventors: Scott Anderson Middlebrooks, Niels Geypen, Hendrik Jan Hidde Smilde, Alexander Straaijer, Maurits Van Der Schaar, Markus Gerardus Martinus Maria Van Kraaij
  • Publication number: 20180164229
    Abstract: Disclosed is a method for reconstructing a parameter of a lithographic process. The method comprises the step of designing a preconditioner suitable for an input system comprising the difference of a first matrix and a second matrix, the first matrix being arranged to have a multi-level structure of at least three levels whereby at least two of said levels comprise a Toeplitz structure. One such preconditioner is a block-diagonal matrix comprising a BTTB structure generated from a matrix-valued inverse generating function. A second such preconditioner is determined from an approximate decomposition of said first matrix into one or more Kronecker products.
    Type: Application
    Filed: December 12, 2017
    Publication date: June 14, 2018
    Applicant: ASML Netherlands B.V.
    Inventors: Maxim Pisarenco, Frank Stefan Schneider, Markus Gerardus Martinus Maria Van Kraaij, Martijn Constant Van Beurden
  • Patent number: 9958791
    Abstract: Disclosed is an inspection apparatus for use in lithography. It comprises a support for a substrate carrying a plurality of metrology targets; an optical system for illuminating the targets under predetermined illumination conditions and for detecting predetermined portions of radiation diffracted by the targets under the illumination conditions; a processor arranged to calculate from said detected portions of diffracted radiation a measurement of asymmetry for a specific target; and a controller for causing the optical system and processor to measure asymmetry in at least two of said targets which have different known components of positional offset between structures and smaller sub-structures within a layer on the substrate and calculate from the results of said asymmetry measurements a measurement of a performance parameter of the lithographic process for structures of said smaller size. Also disclosed are substrates provided with a plurality of novel metrology targets formed by a lithographic process.
    Type: Grant
    Filed: October 13, 2014
    Date of Patent: May 1, 2018
    Assignee: ASML Netherlands B.V.
    Inventors: Simon Gijsbert Josephus Mathijssen, Stefan Hunsche, Markus Gerardus Martinus Maria Van Kraaij
  • Patent number: 9910366
    Abstract: Disclosed is a method of measuring a parameter of a lithographic process, and associated inspection apparatus. The method comprises measuring at least two target structures on a substrate using a plurality of different illumination conditions, the target structures having deliberate overlay biases; to obtain for each target structure an asymmetry measurement representing an overall asymmetry that includes contributions due to (i) the deliberate overlay biases, (ii) an overlay error during forming of the target structure and (iii) any feature asymmetry. A regression analysis is performed on the asymmetry measurement data by fitting a linear regression model to a planar representation of asymmetry measurements for one target structure against asymmetry measurements for another target structure, the linear regression model not necessarily being fitted through an origin of the planar representation. The overlay error can then be determined from a gradient described by the linear regression model.
    Type: Grant
    Filed: July 18, 2014
    Date of Patent: March 6, 2018
    Assignee: ASML Netherlands B.V.
    Inventors: Scott Anderson Middlebrooks, Niels Geypen, Hendrik Jan Hidde Smilde, Alexander Straaijer, Maurits Van Der Schaar, Markus Gerardus Martinus Maria Van Kraaij
  • Publication number: 20170345138
    Abstract: A method and apparatus of detection, registration and quantification of an image. The method may include obtaining an image of a lithographically created structure, and applying a level set method to an object, representing the structure, of the image to create a mathematical representation of the structure. The method may include obtaining a first dataset representative of a reference image object of a structure at a nominal condition of a parameter, and obtaining second dataset representative of a template image object of the structure at a non-nominal condition of the parameter. The method may further include obtaining a deformation field representative of changes between the first dataset and the second dataset. The deformation field may be generated by transforming the second dataset to project the template image object onto the reference image object. A dependence relationship between the deformation field and change in the parameter may be obtained.
    Type: Application
    Filed: November 13, 2015
    Publication date: November 30, 2017
    Applicant: ASML Netherlands B.V.
    Inventors: Scott Anderson MIDDLEBROOKS, Markus Gerardus Martinus Maria VAN KRAAIJ, Maxim PISARENCO, Adrianus Cornelis Matheus KOOPMAN, Stefan HUNSCHE, Willem Marie Julia Marcel COENE