The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jul. 01, 2014

Filed:

Jun. 17, 2013
Applicant:

Fei Company, Hillsboro, OR (US);

Inventors:

Brian Roberts Routh, Jr., Beaverton, OR (US);

Peter Christiaan Tiemeijer, Eindhoven, NL;

Bart Jozef Janssen, Eindhoven, NL;

Thomas G. Miller, Portland, OR (US);

David Foord, Portland, OR (US);

Ivan Lazić, Eindhoven, NL;

Assignee:

FEI Company, Hillsboro, OR (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01J 37/26 (2006.01); H01J 37/28 (2006.01); H01J 37/295 (2006.01);
U.S. Cl.
CPC ...
H01J 37/295 (2013.01); H01J 37/26 (2013.01); H01J 37/28 (2013.01);
Abstract

The invention relates to a method of preparing and imaging a sample using a particle-optical apparatus, equipped with an electron column and an ion beam column, a camera system, a manipulator. The method comprises the steps of deriving a first ptychographic image of the sample from a first electron image, thinning the sample, and forming a second ptychographic image of the sample. In an embodiment of the invention the seed image used for the second image is the first ptychographic image. In another embodiment the second ptychographic image is the image of the layer removed during the thinning. In another embodiment the inner potential of the sample is determined and dopant concentrations are determined.


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