Patent ID: 8796651
Filing Date: 2014-08-05
Classification: B23K,G01N,H01J

Abstract:
1. A sample fabricating method including: a first step of irradiating a first ion beam at a surface of a specimen in order to form a first trench relative to the surface of the specimen, the surface of the specimen being set at a predetermined angle that is inclined relative to a right angle between the surface and an optical axis of the first ion beam during the first step of irradiating; a step of rotating the specimen approximately 180 degrees about a rotation axis perpendicular to the surface of the specimen after the first irradiating step while maintaining the specimen at the predetermined angle; a second step of irradiating a second ion beam at the surface of the specimen in order to form a second trench relative to the surface of the specimen, the first and second trenches being formed to converge within the specimen to form a bottom of a sample, the surface of the specimen being set during the second step of irradiating at the same predetermined angle at which the surface of the specimen is set during the first step of irradiating; a step of separating the sample from the specimen; a third step of irradiating a third ion beam at a surface of the specimen in order to form a third trench relative to the surface of the specimen, the surface of the specimen being set at the same predetermined angle before the step of the rotating; a fourth step of irradiating a fourth ion beam at the surface of the specimen in order to from a fourth trench relative to the surface of the specimen, the third and fourth trenches being formed to converge within the specimen to form a bottom of a second sample, the surface of the specimen being set at the same predetermined angle after the step of the rotating; and a step of separating the second sample from the specimen.