Patent ID: 6639226
Filing Date: 2003-10-28
Classification: H01J

Abstract:
Focused ion beam (FIB) equipment, which irradiates a sample placed on a stage with an FIB, and performs etching or deposition at the irradiation position, comprising:an alignment mark formation unit, which forms an alignment mark on the surface of said sample by irradiating a periphery of a processing position with an FIB; and, a processing position detection unit, which superposes an optical microscope image of a processing area including the processing position at which the alignment mark is formed, and a scanning ion microscope (SIM) image acquired by FIB irradiation to the processing area, based on said alignment mark, and which detects the processing position on the superposed images, wherein said FIB equipment irradiates the processing position detected by said processing position detection unit with said FIB, so as to perform the said etching or deposition.