Patent classifications
H01J2237/2611
METHOD FOR CROSS-SECTION PROCESSING AND OBSERVATION AND APPARATUS THEREFOR
Disclosed herein is a method for cross-section processing and observation, and apparatus therefore, the method including: performing a position information obtaining process of observing the entirety of a sample by using an optical microscope or an electron microscope, and of obtaining three-dimensional position coordinate information of a particular observation target object included in the sample; performing a cross-section processing process of irradiating a particular region in which the object is present by using a focused ion beam based on the information, and of exposing a cross section of the region; performing a cross-section image obtaining process of irradiating the cross section by using an electron beam, and of obtaining a cross-section image of a predetermined size region including the object; and performing a three-dimensional image obtaining process of repeating the cross-section processing process and the cross-section image obtaining process at predetermined intervals in a predetermined direction, and of obtaining a three-dimensional image from obtained multiple cross-section images.
BEAM TRAJECTORY VIA COMBINATION OF IMAGE SHIFT AND HARDWARE ALPHA TILT
Methods include holding a sample with a movement stage configured to rotate the sample about a rotation axis, directing an imaging beam to a first sample location with the sample at a first rotational position about the rotation axis and detecting a first transmitted imaging beam image, rotating the sample using the movement stage about the rotation axis to a second rotational position, and directing the imaging beam to a second sample location by deflecting the imaging beam in relation to an optical axis of the imaging beam and detecting a second transmitted imaging beam image, wherein the second sample location is spaced apart from the first sample location at least at least in relation to the optical axis. Related systems and apparatus are also disclosed.
Charged particle microscope scan masking for three-dimensional reconstruction
Disclosed herein are CPM support systems, as well as related apparatuses, methods, computing devices, and computer-readable media. For example, in some embodiments, a charged particle microscope computational support apparatus may include: first logic to, for each angle of a plurality of angles, receive an associated image of a specimen at the angle, and generate an associated scan mask based on one or more regions-of-interest in the associated image; second logic to, for each angle of the plurality of angles, generate an associated data set of the specimen by processing data from a scan, in accordance with the associated scan mask, by a charged particle microscope of the specimen at the angle; and third logic to provide, for each angle of the plurality of angles, the associated data set of the specimen to reconstruction logic to generate a three-dimensional reconstruction of the specimen.
GENERATING THREE DIMENSIONAL INFORMATION REGARDING STRUCTURAL ELEMENTS OF A SPECIMEN
A method, a non-transitory computer readable medium and a three-dimensional evaluation system for providing three dimensional information regarding structural elements of a specimen. The method can include illuminating the structural elements with electron beams of different incidence angles, where the electron beams pass through the structural elements and the structural elements are of nanometric dimensions; detecting forward scattered electrons that are scattered from the structural elements to provide detected forward scattered electrons; and generating the three dimensional information regarding structural elements based at least on the detected forward scattered electrons.
SYSTEMS AND METHODS FOR SIGNAL ELECTRON DETECTION IN AN INSPECTION APPARATUS
A charged particle beam apparatus for inspecting a sample is provided. The apparatus includes a pixelized electron detector to receive signal electrons generated in response to an incidence of an emitted charged particle beam onto the sample. The pixelized electron detector includes multiple pixels arranged in a grid pattern. The multiple pixels may be configured to generate multiple detection signals, wherein each detection signal corresponds to the signal electrons received by a corresponding pixel of the pixelized electron detector. The apparatus further includes a controller includes circuitry configured to determine a topographical characteristic of a structure within the sample based on the detection signals generated by the multiple pixels, and identifying a defect within the sample based on the topographical characteristic of the structure of the sample.
SYSTEMS AND METHODS FOR REAL TIME STEREO IMAGING USING MULTIPLE ELECTRON BEAMS
Embodiments consistent with the disclosure herein include methods and a multi-beam apparatus configured to emit charged-particle beams for imaging a top and side of a structure of a sample, including: a deflector array including a first deflector and configured to receive a first charged-particle beam and a second charged-particle beam; a blocking plate configured to block one of the first charged-particle beam and the second charged-particle beam; and a controller having circuitry and configured to change the configuration of the apparatus to transition between a first mode and a second mode. In the first mode, the deflector array directs the second charged-particle beam to the top of the structure, and the blocking plate blocks the first charged-particle beam. And in the second mode, the first deflector deflects the first charged-particle beam to the side of the structure, and the blocking plate blocks the second charged-particle beam.
THREE-DIMENSIONAL RECONSTRUCTION OF A SEMICONDUCTOR SPECIMEN
There is provided a system and a method comprising obtaining a first (respectively second) image of an area of the semiconductor specimen acquired by an electron beam examination tool at a first (respectively second) illumination angle, determining a plurality of height values informative of a height profile of the specimen in the area, the determination comprising solving an optimization problem which comprises a plurality of functions, each function being representative of a difference between data informative of a grey level intensity at a first location in the first image and data informative of a grey level intensity at a second location in the second image, wherein, for each function, the second location is determined with respect to the first location, or conversely, when solving the optimization problem, wherein a distance between the first and the second locations depends on the height profile, and the first and second illumination angles.
JOINT NANOSCALE THREE-DIMENSIONAL IMAGING AND CHEMICAL ANALYSIS
A method for in-situ joint nanoscale three-dimensional imaging and chemical analysis of a sample. A single charged particle beam device is used for generating a sequence of two-dimensional nanoscale images of the sample, and for sputtering secondary ions from the sample, which are analysed using a secondary ion mass spectrometry device. The two-dimensional images are combined into a three-dimensional volume representation of the sample, the data of which is combined with the results of the chemical analysis.
ELECTRON BEAM APPARATUS, INSPECTION TOOL AND INSPECTION METHOD
An electron beam apparatus including: an electron beam source configured to generate an electron beam; a beam conversion unit including an aperture array configured to generate a plurality of beamlets from the electron beam, and a deflector unit configured to deflect one or more groups of the plurality of beamlets; and a projection system configured to project the plurality of beamlets onto an object, wherein the deflector unit is configured to deflect the one or more groups of the plurality of beamlets to impinge on the object at different angles of incidence, each beamlet in a group having substantially the same angle of incidence on the object.
Atom probe inspection device, field ion microscope, and distortion correction method
According to one embodiment, an atom probe inspection device includes one or more processors configured to change a two-dimensional position of a detected ion, detect two-dimensional position information of the ion and a flying time of the ion, identify a type of an element of the ion, generate first information under a first condition and second information under a second condition, and generate a reconstruction image of the sample from the first information and the second information.