Patent classifications
H01J2237/2801
METHOD FOR MONITORING ENVIRONMENTAL STATES OF A MICROSCOPE SAMPLE WITH AN ELECTRON MICROSCOPE SAMPLE HOLDER
An apparatus and a method for measuring and monitoring the properties of a fluid, for example, pressure, temperature, and chemical properties, within a sample holder for an electron microscope. The apparatus includes at least one fiber optic sensor used for measuring temperature and/or pressure and/or pH positioned in proximity of the sample.
Stage device and charged particle beam device using the same
To provide a stage device and a charged particle beam device using the same capable of effectively suppressing thermal deformation of a stage generated by temperature increase caused by heat generated by a linear motor. The stage device including a table, a linear motor driving the table in a prescribed direction, in which the table and a moving part of the linear motor are connected by components, a slide unit is attached to the component, movement of which is constrained by a rail fixed to a base, and at the same time, the slide unit is positioned vertically below a place where the component is joined to the table, thereby suppressing thermal deformation of the table.
COMPOSITE CHARGED PARTICLE BEAM DEVICE
This composite charged particle beam device comprises a first charged particle beam column (6), a second charged particle beam column (1) which is equipped with a deceleration system, and is equipped with a detector (3) inside the column, a test piece stage (10) on which a test piece (9) is placed, and an electric field correction electrode (13) which is provided around the tip of the first charged particle beam column, wherein the electric field correction electrode is an electrode that corrects the electric field distribution formed in the vicinity of the test piece, and the electric field correction electrode is positioned between the test piece and the first charged particle beam column, and on the opposite side from the second charged particle beam column with respect to the optical axis of the first charged particle beam column.
Method and device for preparing a microscopic sample from a volume sample
A method prepares a microsample from a volume sample using multiple particle beams. The method includes providing a volume sample in the microscope system, wherein the interior of the volume sample has a sample region of interest, and producing a macrolamella comprising the sample region of interest by removing sample material of the volume sample using one of the particle beams. The method also includes orienting the macrolamella relative to one of the particle beams, and removing sample material of the macrolamella via a beam so that the region of interest is exposed.
SCANNING ELECTRON MICROSCOPY-BASED SAMPLE ANALYSIS
A method of determining sample information associated with a sample is provided. In an embodiment, when a sample has a first temperature, a first measure of electrons of the sample is determined. When the sample has a second temperature different than the first temperature, a second measure of electrons of the sample is determined. Sample information associated with the sample is determined based upon the first measure of electrons and the second measure of electrons. The sample information includes a dopant concentration of the sample, a measure of electric field strength of the sample, a defect concentration of the sample, a Fermi level of the sample and/or an indication of a space charge region of the sample.
SCANNING ELECTRON MICROSCOPY-BASED TOMOGRAPHY OF SPECIMENS
Disclosed herein is a system for non-destructive tomography of specimens. The system includes a scanning electron microscope (SEM) and a processor(s). The SEM is configured to obtain a sinogram of a tested specimen, parameterized by a vector {right arrow over (s)}, by projecting e-beams on the tested specimen, at each of a plurality of projection directions and offsets, and. for each e-beam, measuring a respective intensity of electrons returned from the tested specimen, The processor(s) is configured to obtain a tomographic map, pertaining to the tested specimen, by determining values indicative of components of a vector {right arrow over (t)} defined by an equation W{right arrow over (t)}={right arrow over (s)}. W is a matrix with components w.sub.ij specifying a contribution of a j-th voxel in a nominal specimen to an i-th element of a nominal sinogram of the nominal specimen. The matrix W accounts for e-beam expansion and attenuation with depth within the nominal specimen.
Detachable column unit of scanning electron microscope, and method for providing the same
The present invention provides a detachable column unit of a scanning electron microscope, and a method of providing the same, wherein the detachable column unit allows the column to be attached to and detached from the sample installation unit, and allows a simple correction related to the column, beam distortion, replacement of consumables, etc. Since problems related to the column are solved by replacing the column, the column has the advantage of being simple and easy to repair and maintain.
Graphene based substrates for imaging
Disclosed are articles comprising substrate and graphene coating that are configured to support a sample for electron or optical microscopy. Also disclosed are methods of making the same and methods of using the same in imaging technology.
SYSTEM FOR DISCHARGING AN AREA THAT IS SCANNED BY AN ELECTRON BEAM
A method and a system for imaging an object, the system may include electron optics that may be configured to scan a first area of the object with at least one electron beam; wherein the electron optics may include a first electrode; and light optics that may be configured to illuminate at least one target of (a) the first electrode and (b) the object, thereby causing an emission of electrons between the first electrode and the object.
Analytical apparatus, sample holder and analytical method
In accordance with an embodiment, an analytical apparatus includes a member, a voltage source connected to the member and a detecting section. The member has an inserting portion into which a sample holder supporting a sample is insertable and whose shape corresponds to a shape of the sample holder. The detecting section is configured to detect a substance to be emitted from the sample by field evaporation. The shape of the inserting portion in a cross section of a direction perpendicular to an inserting direction of the sample holder is a shape excluding a perfect circle.