摘要:
The present disclosure relates to modular assembly for engaging modules of an apparatus together. The assembly comprising two modules configured to be mutually engageable to adjoin each other. The modules each having a body 71; 72 and multiple engagers 81; 82 that are each configured to engage with a corresponding engager 82; 81 of another of the modules and to complete a corresponding verification circuit. Each verification circuit is configured to be closed on engagement of an engager of one of the modules with a corresponding engager of the other of the modules. The engager is configured to be electrically isolated from the body of the one of the two modules, and the corresponding engager is configured to be electrically connected to the body of the other of the two modules.
摘要:
There is provided a charged particle beam system in which a detector can be placed in an appropriate analysis position. The charged particle beam system (100) includes: a charged particle source (11) for producing charged particles; a sample holder (20) for holding a sample (S); a detector (40) for detecting, in the analysis position, a signal produced from the sample (S) by impingement of the charged particles on the sample (S); a drive mechanism (42) for moving the detector (40) into the analysis position; and a controller (52) for controlling the drive mechanism (42). The controller (52) performs the steps of: obtaining information about the type of the sample holder (20); determining the analysis position on the basis of the obtained information about the type of the sample holder (20); and controlling the drive mechanism (42) to move the detector (40) into the determined analysis position.
摘要:
The invention relates to a method for positioning a focal plane of a light imaging device at a surface of a substrate, wherein the substrate emits light when irradiated with charged particles. The method comprises the steps of: i. irradiating the substrate with a beam of charged particles having a set charged particle beam energy; ii. moving the focal plane of the light imaging device at least in a direction towards or away from the substrate and measuring an intensity of the emitted light as a function of the position of said focal plane with respect to the substrate; and iii. setting the focal plane at a focal position with respect to the substrate, said focal position being determined using the measured dependence of the intensity of the light signal as a function of the position. Preferably the method steps are subsequently repeated using a reduced charged particle beam energy.
摘要:
Eine Kammeranordnung (10) für eine Elektronenstrahlbearbeitungsvorrichtung weist ein Kammergehäuse (12), das einen Kammerinnenraum (14) definiert und eine erste Öffnung (46) aufweist, einen Schlitten (52), der im Bereich der ersten Öffnung (46) bewegbar ist, einen Elektronenstrahlgenerator (42) zum Erzeugen eines Elektronenstrahls entlang einer Elektronenstrahlachse (45), wobei der Elektronenstrahlgenerator (42) an dem Schlitten (52) so angeordnet ist, dass bei einer Bewegung des Schlittens (52) im Bereich der ersten Öffnung (46) der Elektronenstrahl durch die erste Öffnung (46) hindurchgeht, und eine Scheibe (70) auf. Die Scheibe (70) ist zwischen dem Kammergehäuse (12) und dem Schlitten (52)angeordnet und ist um eine Drehachse (72), die senkrecht zu der ersten Öffnung (46) ist, wenigstens zwischen einer ersten Position und einer zweiten Position drehbar und weist eine zweite Öffnung (74) mindestens in einem Bereich der Scheibe (70), der sich in radialer Richtung von der Drehachse (72) der Scheibe (70) weg erstreckt, auf. Die Drehachse (72) der Scheibe (70) ist so angeordnet, dass sich die erste Öffnung (46) und die zweite Öffnung (74) bei einer Drehung der Scheibe (70) zwischen der ersten Position und der zweiten Position wenigstens im Bereich der Elektronenstrahlachse (45) überdecken.
摘要:
The present disclosure provides a system and method for inspecting an aircraft. A ray source and a detector locate at above and below of a fuselage of an aircraft, respectively. The ray source emits a beam of rays, which pass through the aircraft to be detected. The detector receives and converts the beam of rays that pass through the aircraft to an output signal, and generates a vertical transmission image in real time.
摘要:
When preparing a Hole-Free Phase Plates (HFPP) a preferably featureless thin film should be placed with high accuracy in the diffraction plane of the TEM, or a plane conjugate to it. The invention discloses two related embodiments for accurately placing the thin film in said plane. The first embodiment uses a Ronchigram of the thin film while the TEM is in imaging mode, and the magnification of the Ronchigram should be tuned so that the magnification in the middle of the Ronchigram is infinite. The second embodiment makes use of electrons scattered by the thin film while the TEM is in diffraction mode. When the thin film does not coincide with the diffraction plane, electrons scattered by the thin film seem to originate from another location than the cross-over of the zero beam. This is observed as a halo. The absence of the halo is proof that the thin film coincides with the diffraction plane. It is noted that the method is best performed without a sample in the sample holder.
摘要:
In order to provide a charged particle beam apparatus capable of irradiating a desired region in the surface of a sample with a charged particle beam from a wide range of angles, an electrode unit (204) comprising an electrode, the inclination angle of which (i.e. the angle of inclination relative to a plane orthogonal to the extension line of the center axis of the ion beam column (201a)) and the position of which (i.e. the position in the direction along the extension line of the center axis of the ion beam column (201a) and in directions orthogonal thereto) can be adjusted, is arranged within a sample chamber (203) of the charged particle beam apparatus. The charged particle beam apparatus is also configured so that a curved ion beam (201b) is irradiated onto a surface of a sample (202) by the electrode. This enables irradiation of the ion beam (201b) to a desired range within the surface of the sample (202), from a wide range of angles with respect to the sample surface.
摘要:
A multi-positional valve is used to control the destination of gas flows from multiple gas sources. In one valve position the gases flow to an isolated vacuum system where the flow rate and mixture can be adjusted prior to introduction into a sample vacuum chamber. In another valve position the pre-mixed gases flow from the isolated vacuum chamber and through a needle into the sample vacuum chamber.
摘要:
The invention relates to a cathodoluminescence detection system comprising: a collecting optic (112) collecting light radiation (108) from a sample illuminated by a beam of charged particles and reflecting said radiation (108) onto analysis means, said collecting optic (112) being placed in a chamber, called a vacuum chamber, wherein the pressure is below atmospheric pressure; and means (316) for adapting the light radiation, placed downstream of the collecting optic (112) and designed to adapt said light radiation (108) at the inlet of the analysis means. Said system is characterized in that all or part of the adapting means (316) is placed in an environment where the pressure is higher than the pressure in said vacuum chamber.