H01J2237/31732

METHOD FOR STRUCTURING AN OBJECT AND ASSOCIATED PARTICLE BEAM SYSTEM
20170263416 · 2017-09-14 ·

A includes arranging a substrate in a working region of a first particle beam column and a second particle beam column; producing a desired target structure on the substrate by directing a first particle beam generated by the first particle beam column at a multiplicity of sites of the substrate to deposit material thereon or to remove material therefrom;

repeatedly interrupting the production of the desired target structure and producing a marking on the substrate by directing the first particle beam onto the substrate and continuing the production of the desired target structure; and capturing positions of the markings on the substrate by directing a second particle beam produced by the second particle beam column onto the markings on the substrate, and detecting particles or radiation which are produced in the process by the second particle beam on the substrate.

FRACTIONING DEVICE

A fractioning device for an ion implantation device with at least one fractioning wall, wherein the fractioning device is suitable for being inserted within a channel. The channel is configured to connect an ion source, which is at a first pressure p1 and a processing chamber, which is at a second pressure p2 in an ion implantation device.

Method for preparing a TEM sample

The present application discloses a method for preparing a TEM sample, including the following steps: step 1: providing a thin-film pre-sample with undesirable voids; step 2: performing a first cutting with a first FIB to form the TEM sample located in the target region of the thin-film pre-sample. The first thickness is reached after the first cutting. The voids are exposed from the front surface or the back surface of the TEM sample after the first cutting; step 3: depositing a first material layer by an ALD process to fill the voids in the TEM sample; step 4: performing the second cutting with a second FIB to form the target thickness of the TEM sample in the target region of the thin-film pre-sample. The present application can reduce or eliminate ion beam cutting marks related to the voids in the thin-film pre-sample.

Depositive shielding for fiducial protection from redeposition

Redeposition of substrate material on a fiducial resulting from charged particle beam (CPB) or laser beam milling of a substrate can be reduced with a shield formed on the substrate surface. The shield typically has a suitable height that can be selected based on proximity of an area to be milled to the fiducial. The shield can be formed with the milling beam using beam-assisted chemical vapor deposition (CVD). The same or different beams can be used for milling and beam-assisted CVD.

Nanofabrication using a new class of electron beam induced surface processing techniques

Methods and systems for direct lithographic pattern definition based upon electron beam induced alteration of the surface chemistry of a substrate are described. The methods involve an initial chemical treatment for global definition of a specified surface chemistry (SC). Electron beam induced surface reactions between a gaseous precursor and the surface are then used to locally alter the SC. High resolution patterning of stable, specified surface chemistries upon a substrate can thus be achieved. The defined patterns can then be utilized for selective material deposition via methods which exploit the specificity of certain SC combinations or by differences in surface energy. It is possible to perform all steps in-situ without breaking vacuum.

DEPOSITIVE SHIELDING FOR FIDUCIAL PROTECTION FROM REDEPOSITION

Redeposition of substrate material on a fiducial resulting from charged particle beam (CPB) or laser beam milling of a substrate can be reduced with a shield formed on the substrate surface. The shield typically has a suitable height that can be selected based on proximity of an area to be milled to the fiducial. The shield can be formed with the milling beam using beam-assisted chemical vapor deposition (CVD). The same or different beams can be used for milling and beam-assisted CVD.

METHOD FOR PREPARING A TEM SAMPLE
20220068600 · 2022-03-03 ·

The present application discloses a method for preparing a TEM sample, including the following steps: step 1: providing a thin-film pre-sample with undesirable voids; step 2: performing a first cutting with a first FIB to form the TEM sample located in the target region of the thin-film pre-sample. The first thickness is reached after the first cutting. The voids are exposed from the front surface or the back surface of the TEM sample after the first cutting; step 3: depositing a first material layer by an ALD process to fill the voids in the TEM sample; step 4: performing the second cutting with a second FIB to form the target thickness of the TEM sample in the target region of the thin-film pre-sample. The present application can reduce or eliminate ion beam cutting marks related to the voids in the thin-film pre-sample.

Charged particle beam device and sample thickness measurement method

Provided is a charged particle beam device which includes a storage unit that stores relationship information indicating a relationship between intensity or an intensity ratio of a charged particle signal obtained when a layer disposed on the sample is irradiated with the charged particle beam and a thickness of the layer; and a calculation unit that calculates the thickness of the layer as a thickness of the sample by using the relationship information and the intensity or the intensity ratio of the charged particle signal.

Focused ion beam apparatus

A focused ion beam apparatus (100) includes: a focused ion beam lens column (20); a sample table (51); a sample stage (50); a memory (6M) configured to store in advance three-dimensional data on the sample table and an irradiation axis of the focused ion beam, the three-dimensional data being associated with stage coordinates of the sample stage; a display (7); and a display controller (6A) configured to cause the display to display a virtual positional relationship between the sample table (51v) and the irradiation axis (20Av) of the focused ion beam, which is exhibited when the sample stage is operated to move the sample table to a predetermined position, based on the three-dimensional data on the sample table and the irradiation axis of the focused ion beam.

SYSTEMS AND METHODS FOR ADDITIVE MANUFACTURING FOR THE DEPOSITION OF METAL AND CERAMIC MATERIALS
20210180179 · 2021-06-17 · ·

The present disclosure relates to systems and methods of additive manufacturing that reduce or eliminates defects in the bulk deposition material microstructure resulting from the additive manufacturing process. An additive manufacturing system comprises evaporating a deposition material to form an evaporated deposition material and ionizing the evaporated deposition material to form an ionized deposition material flux. After forming the ionized deposition material flux, the ionized deposition material flux is directed through an aperture, accelerated to a controlled kinetic energy level and deposited onto a surface of a substrate. The aperture mechanism may comprise a physical, electrical, or magnetic aperture mechanism. Evaporation of the deposition material may be performed with an evaporation mechanism comprised of resistive heating, inductive heating, thermal radiation, electron heating, and electrical arc source heating.