Patents by Inventor Theodorus Adrianus Petrus Verkleij

Theodorus Adrianus Petrus Verkleij 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: 7615745
    Abstract: The invention pertains to a method for separating a minute sample (1) from a work piece (2). Such a method is routinely used in the semiconductor industry to obtain samples from wafers to be inspected in a TEM. It occurred to the inventor that approximately 20% of the obtained samples could not be properly finished (thinned) due to a misalignment of specimen carrier (6) and sample. It turned out that this misalignment is caused by the specimen carrier contacting the sample prior to welding. By not contacting the sample while welding, but leaving a small gap between specimen carrier and sample, this misalignment is avoided. To avoid movement of the specimen carrier during welding, due to e.g. vibration, the specimen carrier can be landed on the wafer on a position (8) close to the sample.
    Type: Grant
    Filed: July 9, 2007
    Date of Patent: November 10, 2009
    Assignee: FEI Company
    Inventors: Rudolf Johannes Peter Gerardus Schampers, Theodorus Adrianus Petrus Verkleij, Hendrik Siewerd Venema
  • Publication number: 20080042058
    Abstract: The invention pertains to a method for separating a minute sample (1) from a work piece (2). Such a method is routinely used in the semiconductor industry to obtain samples from wafers to be inspected in a TEM. It occurred to the inventor that approximately 20% of the obtained samples could not be properly finished (thinned) due to a misalignment of specimen carrier (6) and sample. It turned out that this misalignment is caused by the specimen carrier contacting the sample prior to welding. By not contacting the sample while welding, but leaving a small gap between specimen carrier and sample, this misalignment is avoided. To avoid movement of the specimen carrier during welding, due to e.g. vibration, the specimen carrier can be landed on the wafer on a position (8) close to the sample.
    Type: Application
    Filed: July 9, 2007
    Publication date: February 21, 2008
    Applicant: FEI Company
    Inventors: Rudolf Johannes Peter Gerardus Schampers, Theodorus Adrianus Petrus Verkleij, Hendrik Siewerd Venema