Patent classifications
H01J2237/20207
Micro stage for particle beam column using piezo elements as actuator
Disclosed herein is a micro stage using a piezoelectric element that can be reliably operated even in a vacuum environment. In a particle column requiring a high precision, for example, a microelectronic column, the micro stage can be used as a stage with micro or nano degree precision for alignment of parts of the column, or for moving a sample, and so on.
Spinning Disk with Electrostatic Clamped Platens for Ion Implantation
A system comprising a spinning disk is disclosed. The system comprises a semiconductor processing system, such as a high energy implantation system. The semiconductor processing system produces a spot ion beam, which is directed to a plurality of workpieces, which are disposed on the spinning disk. The spinning disk comprises a rotating central hub with a plurality of platens. The plurality of platens may extend outward from the central hub and workpieces are electrostatically clamped to the platens. The plurality of platens may also be capable of rotation. The central hub also controls the rotation of each of the platens about an axis orthogonal to the rotation axis of the central hub. In this way, variable angle implants may be performed. Additionally, this allows the workpieces to be mounted while in a horizontal orientation.
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.
CHARGED PARTICLE BEAM DEVICE AND CONTROL METHOD THEREOF
A charged particle beam device includes: a movement mechanism configured to hold and move a sample; a charged particle source configured to emit charged particles with which the sample is irradiated to obtain an image of the sample; and a control unit configured to control the movement mechanism to move the sample and to obtain the image of the sample. The control unit obtains a reference image of the sample in a reference arrangement state by the charged particles, generates a goal image of the sample in a target arrangement state different from the reference arrangement state by calculation from the reference image, moves the sample to each of different arrangement states by the movement mechanism, obtains a candidate image of the sample in each of the different arrangement states by the charged particles, and generates a comparison result between respective candidate images and the goal image.
METHOD OF GENERATING A CRYSTALLINE ORIENTATION MAP OF A SURFACE PORTION OF A SAMPLE AND COMPUTER PROGRAM PRODUCT
A method generates a crystalline orientation map of a surface portion of a sample. A crystalline orientation map represents crystalline orientations at a plurality of sample locations of the surface portion. The method comprises recording an image of the surface portion including a central location using particles of a charged particle beam directed to the surface portion and backscattering from the surface portion for each of a plurality of different orientation settings. Each of the orientation settings is defined by an azimuthal angle and an elevation angle under which the charged particle beam is incident onto the central location during the recording of the respective image. The method also includes generating the crystalline orientation map based on the recorded images.
DOUBLE-TILT SAMPLE HOLDER FOR TRANSMISSION ELECTRON MICROSCOPE
A double-tilt sample holder for TEM, comprising: it comprise the main body of sample holder body, front-end tilt stage, drive rod, linkage, tilt axis, rotation axis, fixed axis of drive rod and sample loading stage. The axis hole is arranged at the front-end tilt stage, which is connected to the main body of the sample holder body by the tilt axis. The linkage, the boss slot and the drive rod slot are connected by the rotation axis. Two through movement guide grooves are designed symmetrically at both sides of the front-end of sample holder body, and the drive rod is fixed by the fixed axis of the drive rod, which restricts the drive rod to move reciprocally in a straight line driven by the linear stepping motor at the back-end of the main body of the holder body, further leading the tilt stage to rotate around the tilt axis. The tilt angle of the sample loading stage can be precisely controlled by the high precision linear stepping motor in the apparatus. The maximum tilt angle of the sample stage can be adjusted by the included angle between the boss at the bottom surface of the front-end tilt stage and the horizontal direction and the length of the movement guide groove in the apparatus. The apparatus can be used coordinately with TEM and its universality is wide.
DOUBLE-TILT IN-SITU MECHANICAL SAMPLE HOLDER FOR TEM BASED ON PIEZOELECTRIC CERAMIC DRIVE
A double-tilt in-situ mechanical sample holder for TEM based on piezoelectric ceramic drive belongs to the field of material microstructure-mechanical properties in-situ characterization, and it comprise two parts of sample holder shaft body and piezoelectric ceramic drive system. The sample holder shaft body comprise tilt stage, sample holder, linear stepping motor, drive rod, drive linkage. The piezoelectric ceramic drive system comprise piezoelectric ceramic loading stage, piezoelectric ceramic, connecting base and the sample loading stage realizing stretch or compression function. The double-axis tilt of the samples in X and Y axis directions is realized by the reciprocating motion back and forth of the drive rod driven by the linear stepping motor. The stretch or compression of the samples is realized by applying voltage on the piezoelectric ceramic to generate displacement and push the sample loading stage by the connecting base. The invention coordinating with high resolution TEM realizes the observation of the microstructure in atomic and even sub angstrom scales, and at the same time it ensures the controllable deformation of nanomaterials, further realizes the integrative research on the material microstructure-mechanical properties and reveals the deformation mechanism of the materials.
Multi-degree-of-freedom sample holder
A multi-degree-of-freedom sample holder, comprising a housing and a rotating shaft, is disclosed. A frame is provided between the housing and the rotating shaft, and the frame is coaxial with the housing and rotating shaft. The present invention has multiple degrees of freedom such as high-precision translational freedom of the sample along the X-axis, Y-axis and Z-axis, and 360° rotation of the sample around the axis, etc. The sample is always aligned with the sample holder shaft during the rotation, and the static electricity accumulated on the sample can be led out.
CHARGED PARTICLE BEAM DEVICE
An electronic microscope has a great depth of focus compared with an optical microscope. Thus, information is superimposed in the depth direction in one image. Thus, observation of a three-dimensional structure inside a specimen with use of the electronic microscope requires accurate specification of a three-dimensional position or density of a structure inside the specimen. Furthermore, the specimen on a slide glass that is observed with the optical microscope may not be put in a TEM device in the related art. Thus, a very complicated preparation of the specimen is required for performing three-dimensional internal structure observation, with the electronic microscope, of a location that is observed with the optical microscope.
Provided is a charged particle beam device including a charged particle optical column that irradiates a specimen with a primary charged particle beam, and a specimen base rotating unit that is capable of rotating the specimen base in a state of an angle formed by a surface of the specimen base and an optical axis of the primary charged particle beam being inclined to a non-perpendicular angle, in which the specimen base is configured to include a detecting element that detects a charged particle scattered or transmitted inside the specimen, and transmitted charged particle images of the specimen corresponding to each angle is acquired by irradiating the specimen in a state of the specimen base rotating unit being rotated at a plurality of different angles.
Electron microscope stage
A positioning system for an electron microscope includes a first carriage comprising a holder for holding a workpiece and a second carriage. The first carriage being coupled to one or more first drive units configured to position the workpiece along first, second, and third axes, and along a first tilt axis. The second carriage housing the one or more first drive units and being coupled to one or more second drive units configured to position the workpiece along a second tilt axis.