摘要:
An apparatus according to the present invention for irradiating a specimen with charged particle beams comprises a single charged particle generating source (1) from which the charged particle beams formed of electrons and negative ions, respectively, can be simultaneously derived; a specimen holder (2) on which the specimen (11) is placed; and charged particle irradiation means which is interposed between the charged particle generating source and the specimen holder in order to focus the charged particle beams and to irradiate the surface of the specimen with the focused beams, and which includes at least one magnetic lens (M 1 M 2 ) and at least one electrostatic lens (E,, E 2 ) that are individually disposed.
摘要:
The present invention is intended to provide a method and an apparatus for making a specimen for use in observation through a transparent electron microscope, including a step for milling part of the specimen into a thin film part, which can be observed through a transparent electron microscope, by scanning and irradiating a focused ion beam onto the specimen, a step for observing a mark for detection of position provided on the specimen as a secondary charged particle image by scanning and irradiating a charged particle beam onto the specimen without irradiating the charged particle beam onto the portion to be milled into the thin film part during the step for milling, and a step for compensating positional drift of the focused ion beam during said step for milling in accordance with a result of the observation. The present invention provides an effect to strikingly raise the efficiency of TEM observation since a specimen for use in TEM observation can be made by precisely milling a thin film part of the specimen even though positional drift of the focused ion beam is caused during milling.
摘要:
The present invention relates to method and apparatus for correcting defects of an X-ray mask comprising the steps of: irradiating a focused ion beam to at least a region having a defective portion of an X-ray mask (200) having a protective film (204, 304) and eliminating the protective film; exposing a circuit pattern (205, 305) having a defective portion (150, 160) locating under the region or setting this circuit pattern to the state near the exposure; detecting at least one of the secondary electrons, secondary ions, reflected electrons, and absorbing current generated from that region and detecting a true defective position; positioning the focused ion beam to the true defective position and irradiating the focused ion beam to the defective portion; and thereby correcting the defect.
摘要:
An ion beam apparatus comprises a chamber of high vacuum, a heated crucible (4) for producing vapor of a material (3), ionizing means (46, 47, 49), ion accelerating means (6b, 5). A substrate (5) to be coated with the vaporized material is disposed within the chamber. An accelerating voltage (-V,, 57) is applied across the crucible (4) and the accelerating means (6b, 5) such that the crucible (4) is of positive polarity while the accelerating means is of negative polarity. The crucible is provided with a small hole (7b) for ejecting the vapor of the material into the vacuum chamber to thereby form atom clouds referred to as clusters under adiabatic expansion and supercooling, a part of the clusters being ionized through irradiation of electrons by the ionizing means and accelerated by the accelerating means so that the ionized and accelerated clusters deposit on the substrate (5) to form a thin film (23) thereon. An electrostatic optical system (13,36,43) is interposed between the cluster ionizing region (49) and the substrate (5) wherein the electrostatic optical system serves to focus the ionized clusters onto the element to form the thin film (23) thereon through deposition of the ionized clusters.
摘要:
This invention discloses an ion beam work apparatus which comprises ion beam radiation means (2, 3) for focusing and radiating an ion beam (10) extracted from an ion source (1) to a target (4) put on a moving mechanism (5), and scanning two-dimensionally the radiation position; secondary particle detection means (6) for detecting the secondary particles (11) generated from the target (4) upon radiation of the ion beam (10); and superposition-display means (14) for superposing the secondary particle image (33) with a different kind of image (34) containing such information that is not contained in the secondary particle image (33), and displaying the resulting image (35); and which can accurately position the beam radiation position to lower wiring layers of the target (4) such as a semiconductor device that cannot be observed by the secondary particle image (33) obtained by scanning the focused ion beam (10).