Patent ID: 8334519

Claim:
A specimen analyzing apparatus comprising: a charged particle beam illuminating optical system for irradiating a charged particle beam on a specimen; a detector for detecting a secondary charged particle beam generated under the irradiation of the charged particle beam; a specimen attachment having a pass-through portion for allowing the charged particle beam to pass; and a specimen holder for mounting the specimen attachment, wherein the specimen attachment mounts the entire specimen in the pass-through portion, wherein the specimen attachment includes a conductive pattern having a first part and a second part whose pattern width is narrower than a pattern width of the first part, wherein the conductive pattern is electrically connectable to the specimen holder via the first part and is electrically connectable to said specimen via the second part, wherein the first part is connected to the second part by the conductive pattern whose pattern width is narrower than a pattern width of the first part, wherein the second part faces the pass-through portion, and wherein the conductive pattern is disposed on an opposite side of the specimen attachment relative to the charged particle beam illuminating optical system; a conductive deposition film formed on the specimen holder; a floating conductive structure having a first end connected to the second part, and a second end connected to the deposition film, wherein the conductive deposition film is disposed on the opposite side of the specimen attachment relative to the charged particle beam illuminating optical system.