公开(公告)号：US20170330724A1

公开(公告)日：2017-11-16

申请号：US15527562

申请日：2015-11-26

Applicant: HITACHI HIGH-TECHNOLOGIES CORPORATION

Inventor： Taiga OKUMURA ,  Takashi OHSHIMA ,  Yuusuke OOMINAMI ,  Minami SHOUJI ,  Akiko HISADA ,  Akio YONEYAMA

IPC: H01J37/28 ,  H01J37/20

CPC classification number: H01J37/28 ,  G01N2223/418 ,  H01J37/20 ,  H01J37/22 ,  H01J37/222 ,  H01J2237/0245 ,  H01J2237/20 ,  H01J2237/20207 ,  H01J2237/20214 ,  H01J2237/228 ,  H01J2237/2802

Abstract: An electronic microscope has a great depth of focus compared with an optical microscope. Thus, information is superimposed in the depth direction in one image. Thus, observation of a three-dimensional structure inside a specimen with use of the electronic microscope requires accurate specification of a three-dimensional position or density of a structure inside the specimen. Furthermore, the specimen on a slide glass that is observed with the optical microscope may not be put in a TEM device in the related art. Thus, a very complicated preparation of the specimen is required for performing three-dimensional internal structure observation, with the electronic microscope, of a location that is observed with the optical microscope.Provided is a charged particle beam device including a charged particle optical column that irradiates a specimen with a primary charged particle beam, and a specimen base rotating unit that is capable of rotating the specimen base in a state of an angle formed by a surface of the specimen base and an optical axis of the primary charged particle beam being inclined to a non-perpendicular angle, in which the specimen base is configured to include a detecting element that detects a charged particle scattered or transmitted inside the specimen, and transmitted charged particle images of the specimen corresponding to each angle is acquired by irradiating the specimen in a state of the specimen base rotating unit being rotated at a plurality of different angles.