Patent ID: 8933400
Filing Date: 2015-01-13
Classification: H01J

Abstract:
1. An inspection or observation apparatus comprising: a charged-particle irradiation section for radiating a primary charged-particle beam; a first casing forming at least part of a first space capable of being maintained in a vacuum state, the first space constituting at least part of a region through which the primary charged-particle beam emitted from the charged-particle irradiation section reaches a sample; a second casing forming at least part of a second space capable of storing the sample therein, the second casing provided on the first casing; an evacuation device for evacuating the first space; a detector for detecting a charged-particle beam irradiated from the charged-particle irradiation section; a partition wall section partitioning the first space and the second space from each other, the partition wall section disposed so as to be coaxial with the charged-particle irradiation section when the sample is irradiated with the primary charged-particle beam radiated from the charged-particle irradiation section; an optical observation section for casting light onto the sample and detecting light from the sample from the same direction as the charged-particle irradiation section; and a sample mount section for mounting the sample, the sample mount section provided in the second space, wherein observation by the irradiation with the charged-particles and observation by the optical observation section can be applied to the sample in the state of being disposed in the second space.