Abstract:
PURPOSE: A charged particle beam drawing apparatus and an article manufacturing method are provided to suppress an external magnetic field of an electron beam by including a magnetic shielding member which shields a magnetic field inputted to the inside of an electronic optical system housing through an opening. CONSTITUTION: A driving device(11) is fixed to a stage support member(4). A substrate stage body(6a) appropriately moves with the driving of the driving device. An optical system housing(3) emits charged particle beams to the substrate. A magnetic field shielding member(12) shields magnetic field inputted to the electronic optical system housing through an opening(9). A detector(13) measures a location of an X-Y direction of the substrate stage body.
Abstract:
The disclosed invention provides a sample holder capable of reducing or preventing the influence of a charged particle beam 11 deflected by applying a magnetic field to a sample 201 and provided with means for simply switching between a mode of observing the sample while applying a magnetic field to the sample, and a mode free of a magnetic field in which a magnetic field becomes zero completely. The sample holder includes a magnetic field generating element 301 including three or more magnetic gaps 351-353 for applying a magnetic field to a sample, a cantilever-beam-shaped sample holding element 202 that holds the sample 201 on one end thereof, and a moving mechanism that adjusts a relative position between a sample and a magnetic gap. The magnetic gaps 351-353 can be placed along an optical axis of the charged particle beam 11.
Abstract:
The invention relates to a low stray field magnetic trap (30) for capturing electrons for an X-ray detector (24), and an X-ray detector (24) comprising the magnetic trap (30), in particular of the EDX type. The magnetic trap (30) according to the invention comprises: (a) a ring element (32) made of a soft-magnetic material with an inner and an outer periphery and (b) a plurality N of magnetic elements (34) comprising a permanent magnetic material, said magnetic elements disposed at the inner periphery of the ring element (32), the magnetic direction of orientation of said magnetic elements being selected such that a magnetic field exists in the center of the magnetic trap (30), wherein the plurality N of magnetic elements (34) numbers at least three and is preferred to be selected according to 2n + 2 with n being a natural number. The magnetic trap (30) according to the invention is characterized by an especially low magnetic stray field and has a very homogeneous and especially strong magnetic field.
Abstract:
The invention relates to a charged particle lithography system for exposing a target. The system includes a charged particle beam generator for generating a charged particle beam; an aperture array (6) for forming a plurality of beamlets from the charged particle beam; and a beamlet projector (12) for projecting the beamlets onto a surface of the target. The charged particle beam generator includes a charged particle source (3) for generating a diverging charged particle beam; a collimator system (5a,5b,5c,5d; 72;300) for refracting the diverging charged particle beam; and a cooling arrangement (203) for removing heat from the collimator system, the cooling arrangement comprising a body surrounding at least a portion of the collimator system.
Abstract:
The invention relates to a modulation device for modulating charged particle beamlets in accordance with pattern data in a multi-beamlet charged particle lithography system. The device comprises a plate-like body, an array of beamlet deflectors, a plurality of power supply terminals (202-205) for supplying at least two different voltages, a plurality of control circuits, and a conductive slab (201) for supplying electrical power to one or more of the power supply terminals (202-205). The plate-like body is divided into an elongated beam area (51) and an elongated non-beam area (52) positioned with their long edges adjacent to each other. The beamlet deflectors are located in the beam area. The control circuits are located in non-beam area. The conductive slab is connected to the control circuits in the non-beam area. The conductive slab comprises a plurality of thin conductive plates (202-205).