Abstract:
PROBLEM TO BE SOLVED: To provide a charged particle beam device capable of reducing an introduced aberration and increasing a throughput. SOLUTION: A column (1) of the charged particle beam device is disclosed. The column includes a charged particle beam emitter (2) for emitting primary charged particle beams as one source of the primary charged particle beams; a biprism (6) adapted for acting on the primary charge particle beams so as to generate two virtual sources; and a charged particle beam optical system (10) adapted to simultaneously focus the charged particle beams on two positions of a specimen (8) corresponding to images of two virtual sources. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a charged particle beam device capable of getting sufficient resolution even at large current or with a large-diameter beam by correcting chromatic aberration of a beam separator. SOLUTION: An achromatic beam separator device separating a primary charged particle beam from another charged particle beam and providing the primary charged particle beam on an optical axis 142 includes a primary charged particle beam inlet, a primary charged particle beam outlet encompassing the optical axis, a magnetic deflection element 163 adapted to generate a magnetic field, and an electrostatic deflection element 165 adapted to generate an electric field overlapping the magnetic field. At least one element chosen from the electrostatic deflection element and the magnetic deflection element is arranged and/or can be arranged to compensate octo-pole influence. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a device and a method for simultaneously detecting particles negatively and positively charged. SOLUTION: A detection device for use in a charged particle beam device includes a separation field generation section 220 for generating a separation field which separates positively and negatively charged secondary particles, a first detector 212 for detecting positively charged particles, and a second detector 214 for detecting negatively charged particles. The positively charged secondary particles are detected by the first detector, and further, the negatively charged secondary particles are simultaneously detected by the second detector. The method for simultaneously detecting the positively and negatively charged particles includes preparing a separation field, preparing the first and second detectors, separating the negatively charged particles in the separation field from the positively charged particles, and simultaneously detecting the positively charged particles by the first detector, and the negatively charged particles by the second detector. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a focused ion beam device with a simpler structure and its operation method. SOLUTION: The focused ion beam device includes an ion beam column including a case for housing a gas electric field ion source emitter with an emitter area for generating ions, an electrode for extracting ions from the gas electric field ion source emitter, one or more gas inlets adapted to introduce a first gas and a second gas to the emitter area, an objective lens for focusing the ion beam generated from the first gas or the second gas, a voltage supply for supplying a voltage between the electrode and the gas electric field ion source emitter, and a controller for switching between a first voltage and a second voltage of the voltage supply for generating an ion beam of ions of the first gas or an ion beam of ions of the second gas. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a charged particle beam device and method, capable of providing high-speed and frequent beam current measurement. SOLUTION: A charged particle beam device is described. The charged particle beam device includes an emitter adapted for emitting a primary charged particle beam, a specimen location adapted for holding a specimen, from which secondary and/or backscattered charged particles are released on impingement of the primary charged particle beam, a detection unit adapted for detecting the secondary particles and/or backscattered charged particles, and a beam guiding unit adapted for guiding the primary charged particle beam to the detection unit for impingement of a primary charged particle beam on the detection unit. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an ion beam device having a liquid-metal alloy ion source (LMAIS) and achromatic mass separator. SOLUTION: The ion beam device includes an ion beam source 110 for generating an ion beam 170 emitted along a first axis 142, an aperture unit adapted to shape the ion beam, and an achromatic deflection unit 162 adapted to deflect ions on the ion beam with a predetermined mass at a deflecting angle. The achromatic deflection unit includes an electric field generating component for generating an electric field, and a magnetic field generating component for generating a magnetic field substantially orthogonal to the electric field. The ion beam device also includes a mass separation aperture 154 adapted to block the ions with a mass different from the predetermined mass and to make the ions with the predetermined mass invade into the inside, and an objective lens 124 having a second optical axis inclined to the first axis. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a charged particle beam device for irradiation of a test piece, in particular, for inspection and structurization of it, and a focused ion beam device and an operating method of the focused ion beam device. SOLUTION: The device is provided with an ion beam column including a closed space for housing an emitter having an emitter region for ion generation, a first gas inlet adapted for introducing a first gas into the emitter region, a second gas inlet adapted for introducing a second gas different from the first gas into the emitter region, and a switching unit adapted for switching over introduction of the first gas and the introduction of the second gas. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an improved charged particle beam device used for inspecting an oblique angle part of a specimen, an edge part thereof or a part of a bottom surface thereof. SOLUTION: This charged particle beam device includes: a first objective lens 104 defining an optical axis 102 and focusing a primary charged particle beam; a specimen stage 110 defining a specimen arrangement area; and a deflection unit 132 for deflecting the primary charged particle beam between the first objective lens and the specimen arrangement area, towards a beam path for impingement on the specimen; wherein the deflection unit is movable with respect to the optical axis 102. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method for operating an electrically-charged particle beam irradiation device including a cold cathode field emitter with an emitter face, especially an electronic beam irradiation device. SOLUTION: A cold cathode field emitter is located in vacuum which provides high initial irradiation current and low stabilized average irradiation current under a given extraction electric field (a). The extraction electric field is applied to the cold cathode field emitter in order to irradiate an electron from the emitter face, and the irradiation current of the cold cathode field emitter is made higher than the stabilized average irradiation current (b). A cleaning process is performed by heating the emitter face up to the predetermined temperature through application of at least one heating pulse, and such a process is carried out before the irradiation current of the cold cathode field emitter drops to the low stabilized average irradiation current (c). The cleaning process (c) is repeated to ensure that the irradiation current of the cold cathode field emitter continuously exceeds the stabilized average irradiation current (d). COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an electrically-charged particle apparatus and its method using the electrically-charged particle emitter with a discontinuous emission pattern. SOLUTION: The electrically-charged particle apparatus includes an emitter (102) having an emission pattern containing at least two emission peaks, gun lenses (119, 519 and 919), and a diaphragm (120). The gun lens contains a deflector unit (110) which directs one emission peak of at least two emission peaks towards an opening area of the diaphragm, thereby selecting one emission peak from at least two emission patterns. COPYRIGHT: (C)2007,JPO&INPIT