A charged-particle source for generating a charged-particle comprises a sequence of electrodes, including an emitter electrode with an emitter surface, a counter electrode held at an electrostatic voltage with respect to the emitter electrode at a sign opposite to that of the electrically charged particles, and one or more adjustment electrodes surrounding the source space between the emitter electrode and the counter electrode. These electrodes have a basic overall rotational symmetry along a central axis, with the exception of one or more steering electrodes which is an electrode which interrupts the radial axial-symmetry of the electric potential of the source, for instance tilted or shifted to an eccentric position or orientation, configured to force unintended, secondary charged particles away from the emission surface.

A method includes forming a resist pattern over a structure, the resist pattern having a trench surrounded by first resist walls extending lengthwise along a first direction and second resist walls extending lengthwise along a second direction perpendicular to the first direction. The method includes loading the structure and the resist pattern into an ion implanter so that a top surface of the resist pattern faces an ion travel direction of the ion implanter. The method includes tilting the structure and the resist pattern so that the ion travel direction forms a tilt angle with respect to an axis perpendicular to the top surface of the resist pattern. The method includes first rotating the structure and the resist pattern around the axis to a first position. The method includes first implanting ions into the resist pattern with the structure and the resist pattern at the first position.

A stage device is disposed in a vacuum environment and moves a target placed on the stage device, the stage device including: a guide rail that is laid on a base; a carriage that moves along the guide rail; rolling elements that come into contact with the guide rail and the carriage and rotate along with the movement of the carriage; a table that is connected to a part of the carriage and moves along with the carriage; and a blocking cover that is provided to cover a normal direction of a guide surface of the guide rail and blocks foreign matter scattered from the guide rail, the carriage, or the rolling elements.

The invention relates to an exposure apparatus and a method for projecting a charged particle beam onto a target. The exposure apparatus comprises a charged particle optical arrangement comprising a charged particle source for generating a charged particle beam and a charged particle blocking element and/or a current limiting element for blocking at least a part of a charged particle beam from a charged particle source. The charged particle blocking element and the current limiting element comprise a substantially flat substrate provided with an absorbing layer comprising Boron, Carbon or Beryllium. The substrate further preferably comprises one or more apertures for transmitting charged particles. The absorbing layer is arranged spaced apart from the at least one aperture.

A spring-loaded fastening system for fastening a liner to a structure, including a spring-loaded fastener with a cleat defining an interior cavity, a spring element disposed on a floor of the interior cavity, and a shoulder bolt with head portion disposed on the spring element, with a shoulder portion of the shoulder bolt extending through a mounting aperture in a floor of the interior cavity and a threaded portion of the shoulder bolt fastened to the structure. The system further includes a hanger pocket in a rear surface of the liner including a first portion with an opening large enough to accommodate a diameter of a lower portion of the cleat and not large enough to accommodate a diameter of an upper portion of the cleat, and a second portion adjoining the first portion with an opening large enough to accommodate the diameter of the upper portion of the cleat.

A member for a semiconductor manufacturing device includes an alumite base material including a concavity and a first layer formed on the alumite base material and including an yttrium compound. The first layer includes an outer surface, a first region on a side of the outer surface, and a second region provided in the concavity and located between the first region and the alumite base material. The concavity includes first and second portions respectively provided with the first and second regions. A width of the second portion is narrower than a width of the first portion in a cross section along a stacking direction and a boundary of the first layer in the concavity and the alumite base material being curved convex toward the outer surface of the first layer.

A liquid metal ion source (50) includes: a reservoir (10) configured to hold an ion material (M) forming a liquid metal; a needle electrode (20); an extraction electrode (22) configured to cause an ion of the ion material to be emitted from a distal end of the needle electrode; a beam diaphragm (24), which is arranged on a downstream side of the extraction electrode, and is configured to limit a beam diameter of the ion; and a vacuum chamber (30) configured to accommodate and hold the reservoir, the needle electrode, the extraction electrode, and the beam diaphragm in vacuum, wherein the liquid metal ion source further includes an oxidizing gas introducing portion (40), and wherein the oxidizing gas introducing portion communicates to the vacuum chamber, and is configured to introduce an oxidizing gas into a periphery of the needle electrode.

An ion source has arc chamber having one or more radiation generating features, an arc chamber body enclosing an internal volume, and at least one gas inlet aperture defined therein. A gas source provides a gas such as a source species gas or a halide through the gas inlet aperture. The source species gas can be an aluminum-based ion source material such as dimethylaluminum chloride (DMAC). One or more shields positioned proximate to the gas inlet aperture provide a fluid communication between the gas inlet aperture and the internal volume, minimize a line-of-sight from the one or more radiation generating features to the gas inlet aperture, and substantially prevent thermal radiation from reaching the gas inlet aperture from the one or more radiation generating features.

An ion gun according to one embodiment of the present invention has an anode, a cathode having a first portion and a second portion that face the anode, and a magnet that creates a spatial magnetic field between the first portion and the second portion. An annular gap including a curved portion is provided between the first portion and the second portion of the cathode. The magnet creates lines of magnetic field having the bottom inside with respect to the sectional center line of the gap between the first portion and the second portion of the curved portion.

Disclosed herein is an apparatus comprising: a first electrically conductive layer; a second electrically conductive layer; a plurality of optics element s between the first electrically conductive layer and the second electrically conductive layer, wherein the plurality of optics elements are configured to influence a plurality of beams of charged particles; a third electrically conductive layer between the first electrically conductive layer and the second electrically conductive layer; and an electrically insulating layer physically connected to the optics elements, wherein the electrically insulating layer is configured to electrically insulate the optics elements from the first electrically conductive layer, and the second electrically conductive layer.