Carl Zeiss Microscopy Gmbh

Giuseppe Pavia

Dirk Preikszas

Heiko Stegmann

Tobias Volkenandt

Daniela Donhauser

Barry Chamley

Christian Mueller

A charged particle beam system includes a charged particle source, an extraction electrode, a suppressor electrode, a first variable voltage supply for biasing the extraction electrode with an extraction voltage and a second variable voltage supply for biasing the suppressor electrode with a suppressor voltage.

Charged particle beam system and method

A method for operating a particle beam generator for a particle beam device, and a particle beam device for carrying out this method, are provided. An extractor voltage may be set to an extractor value using a first variable voltage supply unit. An emission current of the particle beam generator may be measured. When the emission current of the particle beam generator decreases, a suppressor voltage applied to a suppressor electrode may be adjusted using a second variable voltage supply unit such that a specific emission current of the particle beam generator is reached or maintained. When the emission current of the particle beam generator increases, the extractor voltage applied to the extractor electrode may be adjusted using the first variable voltage supply unit such that the specific emission current of the particle beam generator is reached or maintained.

Method for operating a particle beam generator for a particle beam device and particle beam device comprising a particle beam generator

The disclosure provides a method of generating a zoom sequence visualizing a portion of a sample. The method includes changing a zoom parameter representing a magnification of an image of a portion of a sample, and directing a charged particle beam to first locations of the portion based on the zoom parameter using a charged particle beam system. The method also includes detecting intensities representing amounts of particles incident onto a detection area, visualizing a representation of the portion based on the intensities, and directing an electron beam to second locations of the portion based on the zoom parameter using a scanning electron microscope. The method further includes detecting diffraction patterns, and determining crystallographic properties of a crystal structure of the portion based on the diffraction patterns.

Method of generating a zoom sequence and microscope system configured to perform the method

A method of determining crystallographic properties of a sample includes: generating first and second electron beams of electrons having first and second mean kinetic energies, respectively; detecting, for each of first locations of a region of the sample, a two-dimensional spatial distribution of electrons incident onto a detection area while directing the first electron beam onto the first locations; generating, for each of the first locations, first data representing the two-dimensional spatial distribution; detecting, for each of second locations of the region of the sample, a two-dimensional spatial distribution of electrons incident onto the detection area while directing the second electron beam onto the second locations; generating, for each of the second locations, second data representing the two-dimensional spatial distribution; and determining the crystallographic properties for target locations of the region based on the first data of the first locations and the second data of the second locations.

Growing community of inventors

Aalen, Germany

Giuseppe Pavia