摘要:
This device (2) for generating an ion beam (4) including a liquid metal ion source (18) is characterized in that the ion source is surrounded by a cryogenic trap (28) maintained at a low temperature, this cryogenic trap being able to trap volatile chemical species (G) by condensing them before they can reach the ion source.
摘要:
The invention concerns a reading/writing tip configured in the shape of a needle consisting of a core of refractory material covered with a coating of electrically conductive material, and having an outer microscope needle geometry by tunnel effect, to obtain an information concerning a surface through tunnel-effect microscopy The needle emits a charged particle from the layer of electrically conductive material, to form the surface. The tip comprises a reservoir capable of being liquefied to flow along the tip.
摘要:
Nanofabrication installation comprising: a specimen holder, for holding a specimen; a mask, having a through-opening between the upper and lower faces of the mask, for letting charged particles through onto the specimen holder; a near-field detection device for detecting a relative position between the mask (8) and the specimen holder (3); and a displacement device for generating a relative movement between the mask (8) and the specimen holder (3) independently of the relative position between the source (1) and the mask (8), the mask including at least a first electrode in the through-opening (10).
摘要:
Nanofabrication installation comprising: a specimen holder, for holding a specimen; a mask, having a through-opening between the upper and lower faces of the mask, for letting charged particles through onto the specimen holder; a near-field detection device for detecting a relative position between the mask (8) and the specimen holder (3); and a displacement device for generating a relative movement between the mask (8) and the specimen holder (3) independently of the relative position between the source (1) and the mask (8), the mask including at least a first electrode in the through-opening (10).
摘要:
An ion beam generation device including an ion source, an extraction mechanism for ions emitted by the source, an accelerating mechanism of the ions thus extracted, a selector for the ions thus accelerated, and an electrostatic optical system for focusing the selected ions along a first axis. Further, a mechanism varies the distance between the ion source and the extraction means, this distance being counted along a second axis parallel to the first axis and constituting the axis of the ion beam emitted by the source. The device may be particularly applied to the manufacture of nanostructures.
摘要:
A device for generating an ion beam includes a support; a liquid metal ion source connected to the support at the lower end of the ion source and surrounded by a cryogenic trap which is capable of preventing volatile chemicals from reaching the ion source; an ion extraction means for extracting the ions emitted by the source through an opening disposed near the upper end of the ion source; and means for generating a magnetic field in the opening of the extraction means, the generated magnetic field capable of preventing charged particles from reaching the ion source.
摘要:
This device comprises adjustment means (40) for storing the desired characteristics for the beam (14), determining the values of the adjustment parameters of the apparatus (2) according to its characteristics, storing these values and giving these stored values to the adjustment parameters of the apparatus. The invention is applied in particular to the manufacturing of nanostructures.
摘要:
A liquid metal ion source includes a cylindrical rod made of an electrically conductive refractory material, ending in a conical pointed end. The cylindrical rod passes through a reservoir of a liquid supply metal. The length of the rod inserted into the reservoir is in electrical contact with the liquid metal in the reservoir, and the reservoir is in contact with a conductive filament. The cylindrical rod, the reservoir and the conductive filament are electrically connected in series.
摘要:
A ion source comprises: a chamber (45), an injection to inject matter into the chamber, wherein said matter comprises at least a first species, a tip with an apex located in the chamber, wherein the apex has a surface made of a metallic second species, a generator to generate ions of said species, and a regulation system adapted to set operative conditions of the chamber to alternatively generate ions from the gaseous first species, and ions from the non-gaseous metallic second species.
摘要:
An adjusting device of an apparatus for generating a beam of charged particles, wherein said beam is for interacting with a target and wherein said adjusting device comprises interface means for receiving, from a user of the apparatus, a set of desired values of characteristics of the beam of charged particles; means for determining a set of nominal values of adjusting parameters of the apparatus, corresponding to said characteristics and for passing them to the apparatus; means for measuring said adjusting parameters of the apparatus, and for computing corresponding values of said characteristics of the beam; and means for determining whether a correction of said values of adjusting parameters is necessary.