H01J37/263

MEASUREMENT SYSTEM AND METHOD OF SETTING PARAMETER OF CHARGED PARTICLE BEAM DEVICE

A method of setting a parameter of a charged particle beam device, for shortening the time required to adjust an ABCC parameter. An inverse conversion processing unit generates a simulator input signal corresponding to an electron emitted from a sample. A simulation detector uses an arithmetic model that simulates a detector and executes arithmetic processing on the simulator input signal in a state in which characteristic information is reflected in an arithmetic parameter. A simulated image conversion unit executes arithmetic processing corresponding to an image conversion unit and converts a signal from the simulation detector into a simulated image. An ABCC search unit searches for an ABCC parameter with respect to the simulation detector so that an evaluation value obtained from the simulated image becomes a specified reference value, and outputs the ABCC parameter as a search result to an ABCC control unit of the actual machine.

Semiconductor Analysis System
20230055155 · 2023-02-23 ·

A semiconductor analysis system includes a machining device that machines a semiconductor wafer to prepare a thin film sample for observation, a transmission electron microscope device that acquires a transmission electron microscope image of the thin film sample, and a host control device that controls the machining device and the transmission electron microscope device. The host control device evaluates the thin film sample based on the transmission electron microscope image, updates acquisition conditions of the transmission electron microscope image based on an evaluation result of the thin film sample, and outputs the updated acquisition conditions to the transmission electron microscope device

Method, device and system for reducing off-axial aberration in electron microscopy

The invention relates to a method for electron microscopy. The method comprises providing an electron microscope, generating an electron beam and an image beam, adjusting one of the beam and of the beam and the image beam to reduce off-axial aberrations and correcting a diffraction pattern of the resulting modified beam. The invention also relates to a method for reducing throughput time in a sample image acquisition session in transmission electron microscopy. The method comprises providing an electron microscope, generating a beam and an image beam, adjusting one of the two to reduce off-axial aberrations and filtering the resulting modified image beam. The invention further relates to an electron microscope and to a non-transient computer-readable medium with a computer program for carrying out the methods.

METHOD AND APPARATUS FOR SCHOTTKY TFE INSPECTION

The present disclosure is related to a Schottky thermal field (TFE) source for emitting an electron beam. Electron optics can adjust a shape of the electron beam before the electron beam impacts a scintillator screen. Thereafter, the scintillator screen generates an emission image in the form of light. An emission image can be adjusted and captured by a camera sensor in a camera at a desired magnification to create a final image of the Schottky TFE source's tip. The final image can be displayed and analyzed to for defects.

Charged particle beam device

Provided is a technique capable of achieving both throughput and robustness for a function of adjusting brightness (B) and contrast (C) of a captured image in a charged particle beam device. The charged particle beam device includes a computer system having a function (ABCC function) of adjusting the B and the C of an image obtained by imaging a sample. The computer system determines whether adjustment is necessary based on a result obtained by evaluating a first image obtained by imaging an imaging target of the sample (step S2), executes, when the adjustment is necessary based on a result of the determination, the adjustment on a second image of the imaging target to set an adjusted B value and an adjusted C value (step S4), and captures a third image of the imaging target based on the adjusted setting values to generate an image for observation (step S5).

TRANSMISSION ELECTRON MICROSCOPE IN-SITU CHIP AND PREPARATION METHOD THEREFOR
20230076908 · 2023-03-09 ·

The present disclosure discloses a transmission electron microscope in-situ chip and a preparation method thereof. The transmission electron microscope in-situ chip includes a transmission electron microscope high-resolution in-situ gas phase heating chip, a transmission electron microscope high-resolution in-situ liquid phase heating chip and a transmission electron microscope in-situ electrothermal coupling chip. The transmission electron microscope high-resolution in-situ gas phase heating chip and the transmission electron microscope high-resolution in-situ liquid phase heating chip are respectively suitable for gas samples and liquid samples, and the transmission electron microscope in-situ electrothermal coupling chip realizes the multi-functional embodiment of electrothermal coupling. The three transmission electron microscope in-situ chips have the advantages of high resolution and low sample drift rate.

DEVICE FOR OBSERVING PERMEATION AND DIFFUSION PATH OF OBSERVATION TARGET GAS, OBSERVATION TARGET GAS MEASURING METHOD, POINT-DEFECT LOCATION DETECTING DEVICE, POINT-DEFECT LOCATION DETECTING METHOD, AND OBSERVATION SAMPLES

The device for observing permeation and diffusion path of observation target gas includes: a scanning electron microscope 15; an observation target ion detecting unit 20; an observation target gas supply unit 19; a diaphragm-type sample holder 12, to which the sample is mounted in attachable/detachable state, as a diaphragm dividing between the analysis chamber 11 and the observation target gas pipe 14; and a control unit 50. The control unit acquires a SEM image and at the same time detects the observation target gas, which diffuses within the sample and is discharged to the surface of the sample, by electron stimulated desorption, in a state where stress is applied to the sample due to differential pressure generated between the analysis chamber and the observation target gas pipe by supplying the observation target gas, and obtains an ESD image of the observation target ions.

Electron Microscope and Image Acquisition Method
20230127255 · 2023-04-27 ·

An electron microscope includes an electron source for emitting an electron beam, an illumination lens for focusing the beam, an aberration corrector for correcting aberrations, an illumination deflector assembly disposed between the illumination lens and the aberration corrector and operating to deflect the beam and to vary its tilt relative to a sample, a scanning deflector for scanning the sample with the beam, an objective lens, a detector for detecting electrons transmitted through the sample and producing an image signal, a control section for controlling the illumination deflector assembly, and an image generating section for receiving the image signal and generating a differential phase contrast (DPC) image. The tilt of the beam is varied by the illumination deflector assembly such that the image generating section generates a plurality of DPC images at different tilt angles of the beam and creates a final image based on the DPC images.

METHOD OF DETERMINING THE BEAM CONVERGENCE OF A FOCUSED CHARGED PARTICLE BEAM, AND CHARGED PARTICLE BEAM SYSTEM

A method of determining a beam convergence of a charged particle beam (11) focused by a focusing lens (120) toward a sample (10) in a charged particle beam system (100) is provided. The method includes (a) taking one or more images of the sample when the sample is arranged at one or more defocus distances from a respective beam focus of the charged particle beam; (b) retrieving one or more beam cross sections from the one or more images; (c) determining one or more beam widths from the one or more beam cross sections; and (d) calculating at least one beam convergence value based on the one or more beam widths and the one or more defocus distances. Further, a charged particle beam system for imaging and/or inspecting a sample that is configured for any of the methods described herein is provided.

TRANSMISSION ELECTRON MICROSCOPE IN-SITU CHIP AND PREPARATION METHOD THEREOF
20230103943 · 2023-04-06 ·

The present disclosure discloses a transmission electron microscope in-situ chip and a preparation method thereof. The transmission electron microscope in-situ chip includes a transmission electron microscope high-resolution in-situ gas phase heating chip, a transmission electron microscope high-resolution in-situ liquid phase heating chip and a transmission electron microscope in-situ electrothermal coupling chip. The transmission electron microscope high-resolution in-situ gas phase heating chip and the transmission electron microscope high-resolution in-situ liquid phase heating chip are respectively suitable for gas samples and liquid samples, and the transmission electron microscope in-situ electrothermal coupling chip realizes the multi-functional embodiment of electrothermal coupling. The three transmission electron microscope in-situ chips have the advantages of high resolution and low sample drift rate.