发明名称 |
LOW-ENERGY SCANNING TRANSMISSION ELECTRON MICROSCOPE |
摘要 |
<p>This low-energy scanning transmission electron microscope employs a very sharp point (1) as the source of electrons with energies in the range between 0,5 and 10 eV. The point (1) is scanned across the surface (2) of a self-supported thin film of material to be investigated at an essentially constant distance on the order of nanometers. The electrons transmitted through the specimen are sensed by a suitable detector (5), and the output signal of the detector (5) is used to control a display unit, which may be a CRT display or a plotter. Scanning of the electron-emitting point as well as of the display unit is performed by a low-energy power supply and scanning signal generating means (8). Electron-emitting point (1), scanning means (7), and electron detector (5) are all isolated from ambient sound and by a damped suspension apparatus (12).</p> |
申请公布号 |
EP0195349(B1) |
申请公布日期 |
1991.08.28 |
申请号 |
EP19860103216 |
申请日期 |
1986.03.11 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
SMITH, DAVID ANTHONY;WELLS, OLIVER CRAIG |
分类号 |
H01J37/28;G01N27/00;G12B21/00;H01J37/26 |
主分类号 |
H01J37/28 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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