H01J2237/004

Electron beam inspection apparatus and electron beam inspection method

An electron beam inspection apparatus includes an acquisition processing circuitry to acquire surface material information presenting a surface material of the substrate and a value of an acceleration voltage of an electron beam; a sequence determination processing circuitry to determine a scan sequence of a plurality of stripe regions on the basis of the surface material of the substrate and the value of the acceleration voltage, the plurality of stripe regions obtained by virtually dividing an inspection region of the substrate in a stripe shape; a secondary electron image acquisition mechanism including a detector for detecting a secondary electron and configured to scan the plurality of stripe regions of the substrate according to a determined scan sequence and to acquire a secondary electron image of the substrate; and a comparison processing circuitry to compare the secondary electron image with a corresponding reference image.

METHOD AND APPARATUS FOR AN ADVANCED CHARGED CONTROLLER FOR WAFER INSPECTION
20200273662 · 2020-08-27 ·

A system and method for advanced charge control of a light beam is provided. The system comprising a laser source comprising a laser diode for emitting a beam and a beam homogenizer to homogenize the emitted beam. The system and methods further comprise a beam shaper configured to shape the emitted beam using an anamorphic prism group and a driver configured to direct the shaped beam to a specified position on a wafer, wherein the laser source, the beam shaper, and the driver are coaxially aligned.

Charged-Particle Beam Device
20200258713 · 2020-08-13 ·

The purpose of the present invention is to provide a charged-particle beam device capable of stable performance of processes such as a measurement or test, independent of fluctuations in sample electric electric potential or the like. To this end, this charged-particle beam device comprises an energy filter for filtering the energy of charged particles released from the sample and a deflector for deflecting the charged particles released from the sample toward the energy filter. A control device generates a first image on the basis of the output of a detector, adjusts the voltage applied to the energy filter so that the first image reaches a prescribed state, and calculates deflection conditions for the deflector on the basis of the post-adjustment voltage applied to the energy filter.

Ion beam irradiation apparatus
10714302 · 2020-07-14 · ·

An apparatus is provided. The apparatus includes a beam current measuring device and a first electrode. The beam current measuring device is retractably movable into an ion beam trajectory so as to measure an ion beam current. The first electrode is disposed immediately upstream of the beam current measuring device in an ion beam transport channel. The first electrode serves both as a suppressor electrode for repelling secondary electrons released from the beam current measuring device, back toward the beam current measuring device, and as a beam optical element other than the suppressor electrode.

Methods and assemblies using fluorine containing and inert gases for plasma flood gun operation

A gas supply assembly is described for delivery of gas to a plasma flood gun which includes an inert gas and a fluorine-containing gas, wherein the assembly is configured to deliver a volume of the fluorine-containing gas to the flood gun that is not greater than 10% of a total volume of the fluorine-containing and inert gasses. The fluorine-containing gas can generate volatile reaction product gases from material deposits in the plasma flood gun, and to effect re-metallization of a plasma generation filament in the plasma flood gun. In combination with the gas amounts, the assembly and methods can use gas flow rates to optimize the cleaning effect and reduce filament material loss from the plasma flood gun during use.

Patterned atomic layer etching and deposition using miniature-column charged particle beam arrays

Methods and systems for direct atomic layer etching and deposition on or in a substrate using charged particle beams. Electrostatically-deflected charged particle beam columns can be targeted in direct dependence on the design layout database to perform atomic layer etch and atomic layer deposition, expressing pattern with selected 3D-structure. Reducing the number of process steps in patterned atomic layer etch and deposition reduces manufacturing cycle time and increases yield by lowering the probability of defect introduction. Local gas and photon injectors and detectors are local to corresponding columns, and support superior, highly-configurable process execution and control.

Bearing device and ion implantation device

A bearing device and an ion implantation device are provided. The bearing device includes a bearing table configured to bear a substrate, and a plurality of supporting components configured to support the substrate, each supporting component is movably arranged on the bearing table, to support the substrate at an adjustable position.

CHARGED PARTICLE BEAM INSPECTION OF UNGROUNDED SAMPLES
20200088657 · 2020-03-19 ·

Systems and methods are provided for dynamically compensating position errors of a sample. The system can comprise one or more sensing units configured to generate a signal based on a position of a sample and a controller. The controller can be configured to determine the position of the sample based on the signal and in response to the determined position, provide information associated with the determined position for control of one of a first handling unit in a first chamber, a second handling unit in a second chamber, and a beam location unit in the second chamber.

FOAM IN ION IMPLANTATION SYSTEM

Disclosed is a semiconductor processing apparatus including one or more components having a conductive or nonconductive porous material. In some embodiments, an ion implanter may include a plurality of beam line components for directing an ion beam to a target, and a porous material along a surface of at least one of the plurality of beamline components.

TIME-DEPENDENT DEFECT INSPECTION APPARATUS
20200075287 · 2020-03-05 ·

An improved charged particle beam inspection apparatus, and more particularly, a particle beam inspection apparatus for detecting a thin device structure defect is disclosed. An improved charged particle beam inspection apparatus may include a charged particle beam source to direct charged particles to a location of a wafer under inspection over a time sequence. The improved charged particle beam apparatus may further include a controller configured to sample multiple images of the area of the wafer at difference times over the time sequence. The multiple images may be compared to detect a voltage contrast difference or changes to identify a thin device structure defect.