H01J37/1475

Scanning electron microscope objective lens system and method for specimen observation

A scanning electron microscope objective lens system is disclosed, which includes: a magnetic lens, a deflection device, a deflection control electrode, specimen to be observed, and a detection device; in which, The opening of the pole piece of the magnetic lens faces to the specimen; the deflection device is located in the magnetic lens, which includes at least one sub-deflector; the deflection control electrode is located between the detection device and the specimen, and the deflection control electrode is used to change the direction of the primary electron beam and the signal electrons generating from the specimen; the detection device comprises the first sub-detector for detecting the back-scattered electrons and the second sub-detector for detecting the second electrons. A specimen detection method is also disclosed.

Electron Beam Apparatus
20210233737 · 2021-07-29 ·

In an electron beam apparatus performing angular scanning that changes an incident angle of an electron beam incident at a predetermined incident position on a sample, when a correction coil is provided in a gap portion of a yoke (magnetic path) of an objective lens, spherical aberration can be corrected by following a deflection signal even if a deflection frequency increases. Therefore, a main control unit that controls an electron optical system sets predetermined phase change amounts a, b with respect to control of a scanning coil in control of the correction coil, and the predetermined phase change amounts a, b are made different depending on a plurality of scanning modes having different scanning speeds.

EXAMINING, ANALYZING AND/OR PROCESSING AN OBJECT USING AN OBJECT RECEIVING CONTAINER

An object receiving container may receive an object which is examinable, analyzable and/or processable at cryo-temperatures. An object holding system may comprise an object receiving container. A beam apparatus or an apparatus for processing an object may comprise an object receiving container or an object holding system. An object may be examined, analyzed and/or processed using an object receiving container or an object holding system. The object receiving container may comprise a first container unit, a cavity for receiving the object, a second container unit, which is able to be brought into a first position and/or into a second position relative to the first container unit, and at least one fastening device which is arranged at the first container unit or at the second container unit for arranging the object receiving container at a holding device.

Apparatus of charged-particle beam such as electron microscope comprising sliding specimen table within objective lens

The present invention provides an apparatus of charged-particle beam such as an electron microscope including a specimen table that can slide on a planar surface around the lower pole piece of the objective lens. The specimen table is confined in a specimen stage having one elastic protrusion and one or more elastic force receiving parts (e.g three permanent protrusions) that contact and press the table. When the specimen is under microscopic examination, disturbing vibration cannot generate a force sufficient to overcome the limiting friction between the specimen table and the planar surface of the objective lens. The invention exhibits numerous technical merits such as minimal or zero vibration noise, and improved image quality, among others.

Scanning magnet design with enhanced efficiency

A scanning magnet is positioned downstream of a mass resolving magnet of an ion implantation system and is configured to control a path of an ion beam downstream of the mass resolving magnet for a scanning or dithering of the ion beam. The scanning magnet has a yoke having a channel defined therein. The yoke is ferrous and has a first side and a second side defining a respective entrance and exit of the ion beam. The yoke has a plurality of laminations stacked from the first side to the second side, wherein at least a portion of the plurality of laminations associated with the first side and second side comprise one or more slotted laminations having plurality of slots defined therein.

Scan and corrector magnet designs for high throughput scanned beam ion implanter

An ion implantation system and method provide a non-uniform flux of a ribbon ion beam. A spot ion beam is formed and provided to a scanner, and a scan waveform having a time-varying potential is applied to the scanner. The ion beam is scanned by the scanner across a scan path, generally defining a scanned ion beam comprised of a plurality of beamlets. The scanned beam is then passed through a corrector apparatus. The corrector apparatus is configured to direct the scanned ion beam toward a workpiece at a generally constant angle of incidence across the workpiece. The corrector apparatus further comprises a plurality of magnetic poles configured to provide a non-uniform flux profile of the scanned ion beam at the workpiece.

Scanning electron microscope with objective lens below sample stage
11127564 · 2021-09-21 · ·

An immersion objective lens is configured below a stage such that multiple detectors can be configured above sample for large beam current application, particularly for defect inspection. Central pole piece of the immersion objective lens thus can be provided that a magnetic monopole-like field can be provided for electron beam. Auger electron detector thus can be configured to analyze materials of sample in the defect inspection.

Charged particle beam device, and observation method and elemental analysis method using the same
11031211 · 2021-06-08 · ·

A charged particle beam device capable of easily discriminating the energy of secondary charged particles is realized. The charged particle beam device includes a charged particle source, a sample stage on which a sample is placed, an objective lens that irradiates the sample with a charged particle beam from the charged particle source, a deflector that deflects secondary charged particles released by irradiating the sample with the charged particle beam, a detector that detects the secondary charged particles deflected by the deflector, a sample voltage control unit that applies a positive voltage to the sample or the sample stage, and a deflection intensity control unit that controls the intensity with which the deflector deflects the secondary charged particles.

SCANNING ELECTRON MICROSCOPE OBJECTIVE LENS SYSTEM AND METHOD FOR SPECIMEN OBSERVATION
20210110994 · 2021-04-15 ·

A scanning electron microscope objective lens system is disclosed, which includes: a magnetic lens, a deflection device, a deflection control electrode, specimen to be observed, and a detection device; in which, The opening of the pole piece of the magnetic lens faces to the specimen; the deflection device is located in the magnetic lens, which includes at least one sub-deflector; the deflection control electrode is located between the detection device and the specimen, and the deflection control electrode is used to change the direction of the primary electron beam and the signal electrons generating from the specimen; the detection device comprises the first sub-detector for detecting the back-scattered electrons and the second sub-detector for detecting the second electrons. A specimen detection method is also disclosed.

Plasma processing apparatus and plasma processing method

A plasma processing apparatus includes a processing chamber configured to process a substrate, a plasma generator configured to generate a plasma, a transport unit configured to transport, to the processing chamber, the plasma generated by the plasma generator, and a scanning magnetic field generator configured to generate a magnetic field which deflects the plasma so as to scan the substrate by the plasma. The scanning magnetic field generator is configured to be capable of adjusting a center of a locus of the plasma.