Patents by Inventor Berend Helmerus Lich

Berend Helmerus Lich 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: 9711325
    Abstract: A method of examining a sample using a charged-particle microscope, comprising mounting the sample on a sample holder; using a particle-optical column to direct at least one beam of particulate radiation onto a surface S of the sample, thereby producing an interaction that causes emitted radiation to emanate from the sample; using a detector arrangement to detect at least a portion of said emitted radiation, the method of which comprises embodying the detector arrangement to detect electrons in the emitted radiation; recording an output On of said detector arrangement as a function of kinetic energy En of said electrons, thus compiling a measurement set M={(On, En)} for a plurality of values of En; using computer processing apparatus to automatically deconvolve the measurement set M and spatially resolve it into a result set R={(Vk, Lk)}, in which a spatial variable V demonstrates a value Vk at an associated discrete depth level Lk referenced to the surface S, whereby n and k are members of an integer sequenc
    Type: Grant
    Filed: April 21, 2014
    Date of Patent: July 18, 2017
    Assignee: FEI Company
    Inventors: Faysal Boughorbel, Eric Gerardus Theodoor Bosch, Pavel Potocek, Xiaodong Zhuge, Berend Helmerus Lich
  • Patent number: 9478393
    Abstract: A method of imaging a specimen comprises directing a beam to irradiate a specimen; detecting radiation emanating from the specimen; scanning the beam along a path; for each sample point in said path, recording a measurement set M={(Dn, Pn)}, where Dn is the detector output as a function of value Pn of measurement parameter P; deconvolving M and spatially resolving it into a set representing depth-resolved imagery of the specimen, whereby, at point pi within the specimen, in a first probing session, irradiating, in a first beam configuration, pi with Point Spread Function F1, whereby said beam configuration is different to P; in at least a second probing session, irradiating, in a second beam configuration, pi with Point Spread Function F2 which overlaps partially with F1 in a zone Oi in which pi is located; sing an Independent Component Analysis algorithm to perform spatial resolution in Oi.
    Type: Grant
    Filed: June 26, 2015
    Date of Patent: October 25, 2016
    Assignee: FEI COMPANY
    Inventors: Pavel Potocek, Faysal Boughorbel, Berend Helmerus Lich, Matthias Langhorst
  • Publication number: 20160013015
    Abstract: A method of accumulating an image of a specimen using a scanning-type microscope, comprising the following steps: Directing a beam of radiation from a source through an illuminator so as to irradiate a surface S of the specimen; Using a detector to detect a flux of radiation emanating from the specimen in response to said irradiation; Causing said beam to follow a scan path relative to said surface; For each of a set of sample points in said scan path, recording an output Dn of the detector as a function of a value Pn of a selected measurement parameter P, thus compiling a measurement set M={(Dn, Pn)}, where n is a member of an integer sequence; Using computer processing apparatus to automatically deconvolve the measurement set M and spatially resolve it so as to produce reconstructed imagery of the specimen, wherein, considered at a given point pi within the specimen, the method comprises the following steps: In a first probing session, employing a first beam configuration B1 to irradiate the point pi w
    Type: Application
    Filed: June 26, 2015
    Publication date: January 14, 2016
    Applicant: FEI Company
    Inventors: Pavel Potocek, Faysal Boughorbel, Berend Helmerus Lich, Matthias Langhorst
  • Publication number: 20140312226
    Abstract: A method of examining a sample using a charged-particle microscope, comprising mounting the sample on a sample holder; using a particle-optical column to direct at least one beam of particulate radiation onto a surface S of the sample, thereby producing an interaction that causes emitted radiation to emanate from the sample; using a detector arrangement to detect at least a portion of said emitted radiation, the method of which comprises embodying the detector arrangement to detect electrons in the emitted radiation; recording an output On of said detector arrangement as a function of kinetic energy En of said electrons, thus compiling a measurement set M={(On, En)} for a plurality of values of En; using computer processing apparatus to automatically deconvolve the measurement set M and spatially resolve it into a result set R?{(Vk, Lk)}, in which a spatial variable V demonstrates a value Vk at an associated discrete depth level Lk referenced to the surface S, whereby n and k are members of an integer sequenc
    Type: Application
    Filed: April 21, 2014
    Publication date: October 23, 2014
    Applicant: FEI Company
    Inventors: Faysal Boughorbel, Eric Gerardus Theodoor Bosch, Pavel Potocek, Xiaodong Zhuge, Berend Helmerus Lich
  • Patent number: 8704176
    Abstract: A method of examining a sample using a charged-particle microscope, comprising mounting the sample on a sample holder; using a particle-optical column to direct at least one beam of particulate radiation onto a surface S of the sample, thereby producing an interaction that causes emitted radiation to emanate from the sample; using a detector arrangement to detect at least a portion of said emitted radiation, the method of which comprises embodying the detector arrangement to detect electrons in the emitted radiation; recording an output On of said detector arrangement as a function of kinetic energy En of said electrons, thus compiling a measurement set M={(On, En)} for a plurality of values of En; using computer processing apparatus to automatically deconvolve the measurement set M and spatially resolve it into a result set R={(Vk, Lk)}, in which a spatial variable V demonstrates a value Vk at an associated discrete depth level Lk referenced to the surface S, whereby n and k are members of an integer sequenc
    Type: Grant
    Filed: April 4, 2013
    Date of Patent: April 22, 2014
    Assignee: FEI Company
    Inventors: Faysal Boughorbel, Eric Gerardus Theodoor Bosch, Pavel Potocek, Xiaodong Zhuge, Berend Helmerus Lich
  • Patent number: 8586921
    Abstract: A method of charged-particle microscopy, comprising: irradiating a sample surface S to cause radiation to emanate from the sample; detecting at least a portion of said emitted radiation recording an output On of said detector arrangement as a function of emergence angle ?n of said emitted radiation, measured relative to an axis normal to S thus compiling a measurement set M={(On, ?n)} for a plurality of values of ?n; automatically deconvolving the measurement set M and spatially resolve it into a result set R={(VK, Lk)},in which a spatial variable V demonstrates a value Vk at an associated discrete death level Lk referenced to the surface S, whereby n and K are members of an integer sequence, and spatial variable V represents a physical property of the sample as a function of position in its bulk.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: November 19, 2013
    Assignee: FEI Company
    Inventors: Faysal Boughorbel, Pavel Potocek, Cornelis Sander Kooijman, Berend Helmerus Lich
  • Patent number: 8581189
    Abstract: A charged-particle microscopy includes irradiating a sample in measurement sessions, each having an associated beam parameter (P) value detecting radiation emitted during each measurement session, associating a measurand (M) with each measurement session, thus providing a data set (S) of data pairs {Pn, Mn}, wherein an integer in the range of 1?n?N, and processing the set (S) by: defining a Point Spread Function (K) having a kernel value Kn for each value n; defining a spatial variable (V); defining an imaging quantity (Q) having fore each value of n a value Qn that is a three-dimensional convolution of Kn and V, such that Qn=Kn*V; for each value of n, determining a minimum divergence min D(Mn?Kn*V) between Mn and Qn, solving V while applying constraints on the values Kn.
    Type: Grant
    Filed: August 10, 2012
    Date of Patent: November 12, 2013
    Assignee: FEI Company
    Inventors: Faysal Boughorbel, Eric Gerardus Theodoor Bosch, Cornelis Sander Kooijman, Berend Helmerus Lich, Alan Frank de Jong
  • Publication number: 20130228683
    Abstract: A method of examining a sample using a charged-particle microscope, comprising mounting the sample on a sample holder; using a particle-optical column to direct at least one beam of particulate radiation onto a surface S of the sample, thereby producing an interaction that causes emitted radiation to emanate from the sample; using a detector arrangement to detect at least a portion of said emitted radiation, the method of which comprises embodying the detector arrangement to detect electrons in the emitted radiation; recording an output On of said detector arrangement as a function of kinetic energy En of said electrons, thus compiling a measurement set M={(On, En)} for a plurality of values of En; using computer processing apparatus to automatically deconvolve the measurement set M and spatially resolve it into a result set R={(Vk, Lk)}, in which a spatial variable V demonstrates a value Vk at an associated discrete depth level Lk referenced to the surface S, whereby n and k are members of an integer sequenc
    Type: Application
    Filed: April 4, 2013
    Publication date: September 5, 2013
    Applicant: FEI Company
    Inventors: Faysal Boughorbel, Eric Gerardus Theodoor Bosch, Pavel Potocek, Xiaodong Zhuge, Berend Helmerus Lich
  • Publication number: 20130037715
    Abstract: A method of examining a sample using a charged-particle microscope, comprising the following steps: Mounting the sample on a sample holder; Using a particle-optical column to direct at least one beam of particulate radiation onto a surface S of the sample, thereby producing an interaction that causes emitted radiation to emanate from the sample; Using a detector arrangement to detect at least a portion of said emitted radiation, which method comprises the following steps: Recording an output On of said detector arrangement as a function of emergence angle ?n of said emitted radiation, measured relative to an axis normal to S, thus compiling a measurement set M={(On, ?n)} for a plurality of values of ?n; Using computer processing apparatus to automatically deconvolve the measurement set M and spatially resolve it into a result set R={(Vk, Lk)}, in which a spatial variable V demonstrates a value Vk at an associated discrete depth level Lk referenced to the surface S, whereby n and k are members of an intege
    Type: Application
    Filed: August 10, 2012
    Publication date: February 14, 2013
    Applicant: FEI Company
    Inventors: Faysal Boughorbel, Pavel Potocek, Cornelis Sander Kooijman, Berend Helmerus Lich
  • Publication number: 20130037714
    Abstract: Charged-particle microscopy includes irradiating a sample in N measurement sessions, each having an associated beam parameter (P) value; Detecting radiation emitted during each measurement session, associating a measurand (M) with each measurement session, thus providing a data set (S) of data pairs {Pn, Mn}, where n is an integer in the range 1?n?N, and processing the set (S) by: Defining a Point Spread Function (K) having a kernel value Kn for each value of n; Defining a spatial variable (V); Defining an imaging quantity (Q) having for each value of n a value Qn that is a three-dimensional convolution of Kn and V, such that Qn=Kn*V; For each value of n, determining a minimum divergence min D(Mn?Kn*V) between Mn and Qn, solving for V while applying constraints on the values Kn.
    Type: Application
    Filed: August 10, 2012
    Publication date: February 14, 2013
    Applicant: FEI Company
    Inventors: Faysal Boughorbel, Berend Helmerus Lich, Cornelis Sander Kooijman, Eric Gerardus Theodoor Bosch, Alan Frank de Jong
  • Patent number: 8232523
    Abstract: A method of investigating a sample using Scanning Electron Microscopy (SEM), comprising the following steps: Irradiating a surface (S) of the sample using a probing electron beam in a plurality (N) of measurement sessions, each measurement session having an associated beam parameter (P) value that is chosen from a range of such values and that differs between measurement sessions; Detecting stimulated radiation emitted by the sample during each measurement session, associating a measurand (M) therewith and noting the value of this measurand for each measurement session, thus allowing compilation of a data set (D) of data pairs (Pi, Mi), where 1?i?N, wherein: A statistical Blind Source Separation (BSS) technique is employed to automatically process the data set (D) and spatially resolve it into a result set (R) of imaging pairs (Qk, Lk), in which an imaging quantity (Q) having value Qk is associated with a discrete depth level Lk referenced to the surface S.
    Type: Grant
    Filed: April 29, 2011
    Date of Patent: July 31, 2012
    Assignee: FEI Company
    Inventors: Faysal Boughorbel, Cornelis Sander Kooijman, Berend Helmerus Lich, Eric Gerardus Theodoor Bosch
  • Publication number: 20110266440
    Abstract: A method of investigating a sample using Scanning Electron Microscopy (SEM), comprising the following steps: Irradiating a surface (S) of the sample using a probing electron beam in a plurality (N) of measurement sessions, each measurement session having an associated beam parameter (P) value that is chosen from a range of such values and that differs between measurement sessions; Detecting stimulated radiation emitted by the sample during each measurement session, associating a measurand (M) therewith and noting the value of this measurand for each measurement session, thus allowing compilation of a data set (D) of data pairs (Pi, Mi), where 1?i?N, wherein: A statistical Blind Source Separation (BSS) technique is employed to automatically process the data set (D) and spatially resolve it into a result set (R) of imaging pairs (Qk, Lk), in which an imaging quantity (Q) having value Qk is associated with a discrete depth level Lk referenced to the surface S.
    Type: Application
    Filed: April 29, 2011
    Publication date: November 3, 2011
    Applicant: FEI Company
    Inventors: Faysal Boughorbel, Cornelis Sander Kooijman, Berend Helmerus Lich, Eric Gerardus Theodoor Bosch