Patents by Inventor Wilhelmus Michael Busing

Wilhelmus Michael Busing 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: 8431896
    Abstract: The invention relates to a method for obtaining images from slices of a specimen, the method comprising: repeatedly obtaining an image of the surface layer of the specimen (1) and removing the surface layer of the specimen, thereby bringing the next slice to the surface; characterized in that after at least one of the removals of a surface layer the specimen is exposed to a staining agent. This method is especially suited for use in a particle-optical instrument equipped with both a scanning electron microscope column (20) and a focused ion beam column (10). The specimen can e.g. be stained in situ by admitting a gas, such as OsO4 (osmiumtetroxide), to the specimen. This method also makes it possible to perform differential staining by first making an image of the specimen exposed to a first staining agent, and subsequently making an image of the specimen when it is additionally stained by a second staining agent.
    Type: Grant
    Filed: May 31, 2011
    Date of Patent: April 30, 2013
    Assignee: FEI Company
    Inventors: Johannes Jacobus Lambertus Mulders, Laurent Roussel, Wilhelmus Michael Busing
  • Publication number: 20110226819
    Abstract: The invention relates to a method for obtaining images from slices of a specimen, the method comprising: repeatedly obtaining an image of the surface layer of the specimen (1) and removing the surface layer of the specimen, thereby bringing the next slice to the surface; characterized in that after at least one of the removals of a surface layer the specimen is exposed to a staining agent. This method is especially suited for use in a particle-optical instrument equipped with both a scanning electron microscope column (20) and a focused ion beam column (10). The specimen can e.g. be stained in situ by admitting a gas, such as OsO4 (osmiumtetroxide), to the specimen. This method also makes it possible to perform differential staining by first making an image of the specimen exposed to a first staining agent, and subsequently making an image of the specimen when it is additionally stained by a second staining agent.
    Type: Application
    Filed: May 31, 2011
    Publication date: September 22, 2011
    Applicant: FEI COMPANY
    Inventors: Johannes Jacobus Lambertus Mulders, Laurent Roussel, Wilhelmus Michael Busing
  • Patent number: 7977631
    Abstract: The invention relates to a method for obtaining images from slices of a specimen, the method comprising: repeatedly obtaining an image of the surface layer of the specimen (1) and removing the surface layer of the specimen, thereby bringing the next slice to the surface; characterized in that after at least one of the removals of a surface layer the specimen is exposed to a staining agent. This method is especially suited for use in a particle-optical instrument equipped with both a scanning electron microscope column (20) and a focused ion beam column (10). The specimen can e.g. be stained in situ by admitting a gas, such as OsO4 (osmiumtetroxide), to the specimen. This method also makes it possible to perform differential staining by first making an image of the specimen exposed to a first staining agent, and subsequently making an image of the specimen when it is additionally stained by a second staining agent.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: July 12, 2011
    Assignee: FEI Company
    Inventors: Johannes Jacobus Lambertus Mulders, Laurent Roussel, Wilhelmus Michael Busing