H01J2237/151

CHARGED PARTICLE MANIPULATOR DEVICE

A multi-beam manipulator device operates on sub-beams of a multi-beam to deflect the sub-beam paths. The device include: an electrode as pairs of parallel surfaces. Each pair of parallel surfaces includes a first surface that is arranged along a side of a corresponding line of sub-beam paths and a second surface that is arranged parallel to the first surface and along an opposite side of the corresponding line of sub-beam paths. A first pair of parallel surfaces is configured to electrostatically interact with an entire line of sub-beams in the multi-beam so that it is capable of applying a deflection amount to the paths of sub-beams in a first direction. A second pair of parallel surfaces is configured to electro-statically interact with an entire line of sub-beams in the multi-beam so that it is capable of applying another deflection amount to the paths of sub-beams in a second direction.

Signal charged particle deflection device, signal charged particle detection system, charged particle beam device and method of detection of a signal charged particle beam

A signal charged particle deflection device for a charged particle beam device is provided. The signal charged particle deflection device includes a beam bender configured for deflecting the signal charged particle beam, wherein the beam bender includes a first electrode and a second electrode providing an optical path for the signal charged particle beam therebetween, wherein the first electrode has a first cross section in a plane perpendicular to the optical path, and the second electrode has a second cross section in the plane perpendicular to the optical path, and wherein a first part of the first cross section and a second part of the second cross section provide the optical path therebetween, and wherein the first part and the second part are different in shape.

Deceleration apparatus for ribbon and spot beams

A deceleration apparatus capable of decelerating a short spot beam or a tall ribbon beam is disclosed. In either case, effects tending to degrade the shape of the beam profile are controlled. Caps to shield the ion beam from external potentials are provided. Electrodes whose position and potentials are adjustable are provided, on opposite sides of the beam, to ensure that the shape of the decelerating and deflecting electric fields does not significantly deviate from the optimum shape, even in the presence of the significant space-charge of high current low-energy beams of heavy ions.

Settling time determination method and multi charged particle beam writing method
11244807 · 2022-02-08 · ·

In one embodiment, a settling time determination method includes deflecting a charged particle beam by applying a voltage outputted from an amplifier to a first deflector while changing a deflection settling time, and writing an evaluation pattern, measuring a position of the evaluation pattern, and determining a position displacement amount of the measured position from a design position, performing fitting of the position displacement amount for the deflection settling time on a first output waveform of the amplifier, and determining a deflection settling time in which the position displacement amount is within a predetermined range.

PARTICLE BEAM APPARATUS AND METHOD FOR OPERATING A PARTICLE BEAM APPARATUS

The system described herein relates to a particle beam apparatus for analyzing and/or for processing an object and to a method for operating a particle beam apparatus. The particle beam apparatus is designed for example as an electron beam apparatus and/or an ion beam apparatus. The particle beam apparatus comprises a beam deflection device, for example an objective lens, which is provided with a first coil and a second coil. The first coil is operated with a first coil current. The second coil is operated with a second coil current. The first coil current and/or the second coil current may always be controlled in such a way that the sum of the first coil current and the second coil current (the summation current) or the difference between the first coil current and the second coil current (the difference current) is controlled to a setpoint value.

Charged particle beam writing apparatus and charged particle beam writing method
11251012 · 2022-02-15 · ·

Drift correction is performed with high accuracy while reducing the calculation amount. According to one aspect of the present invention, a charged particle beam writing apparatus includes an emitter emitting a charged particle beam, a deflector adjusting an irradiation position of the charged particle beam with respect to a substrate placed on a stage, a shot data generator generating shot data from writing data, the shot data including a shot size, a shot position, and a beam ON⋅OFF time per shot, a drift corrector referring to a plurality of pieces of the shot data for every predetermined area irradiated with the charged particle beam, or for every predetermined number of shots of the charged particle beam irradiated, calculating a drift amount of the irradiation position of the charged particle beam with which the substrate is irradiated, based on the shot size, the shot position and the beam ON⋅OFF time, and generating correction information for correcting an irradiation position displacement based on the drift amount, and a deflection controller controlling a deflection amount achieved by the deflector based on the shot data and the correction information.

APPARATUS FOR AND METHOD OF CONTROLLING AN ENERGY SPREAD OF A CHARGED-PARTICLE BEAM

Disclosed among other aspects is a charged particle inspection system including an absorbing component and a programmable charged-particle mirror plate arranged to modify the energy distribution of electrons in a beam and shape the beam to reduce the energy spread of the electrons and aberrations of the beam, with the absorbing component including a set of absorbing structures configured as absorbing structures provided on a transparent conductive layer and a method using such an absorbing component and with the programmable charged-particle mirror plate including a set of pixels configured to generate a customized electric field to shape the beam and using such a programmable charged-particle mirror plate.

Systems and methods for compensating dispersion of a beam separator in a single-beam or multi-beam apparatus

Systems and methods are provided for compensating dispersion of a beam separator in a single-beam or multi-beam apparatus. Embodiments of the present disclosure provide a dispersion device comprising an electrostatic deflector and a magnetic deflector configured to induce a beam dispersion set to cancel the dispersion generated by the beam separator. The combination of the electrostatic deflector and the magnetic deflector can be used to keep the deflection angle due to the dispersion device unchanged when the induced beam dispersion is changed to compensate for a change in the dispersion generated by the beam separator. In some embodiments, the deflection angle due to the dispersion device can be controlled to be zero and there is no change in primary beam axis due to the dispersion device.

CERAMIC STRUCTURE AND ELECTROSTATIC DEFLECTOR
20230257307 · 2023-08-17 ·

A ceramic structure includes aluminum oxide as a main component and aluminum titanate, and, in a surface layer region where a depth from a fired surface is within at least 5 mm, at least one of a surface resistance value or a surface resistivity increases in a power approximation or linear approximation manner from the fired surface in a normal direction. An electrostatic deflector includes a cylindrical substrate made of the ceramic structure and a plurality of electrodes provided on an inner peripheral portion of the cylindrical substrate.

Multi-beam inspection apparatus with improved detection performance of signal electrons

The present disclosure proposes a crossover-forming deflector array of an electro-optical system for directing a plurality of electron beams onto an electron detection device. The crossover-forming deflector array includes a plurality of crossover-forming deflectors positioned at or at least near an image plane of a set of one or more electro-optical lenses of the electro-optical system, wherein each crossover-forming deflector is aligned with a corresponding electron beam of the plurality of electron beams.