| 摘要 |
<p>In a scan atom probe (100), firstly, a surface shape analysis block (20) analyzes a surface shape of a sample (3). Next, an extraction electrode (5) is positioned on a desired analysis region of the sample surface. When analyzing an electron state in the analysis region, minus bias voltage is applied from a DC high voltage power source (2) to the sample (3) and field-emitted electrons are detected by a screen (9). When analyzing an atom arrangement and composition in the analysis region, the sample (3) is subjected to positive voltage from the DC high voltage power source (2) and a pulse generator (1) and cations generated by field evaporation are detected by a position detection type ion detector (11) or a reflectron type mass analyzer (13).</p> |
