➢接物透鏡Objective Lens -主要是功能是改變電子束對試片之間的距離. -在影像上是對聚焦focus的改變
Yoke
Pole piece
Coil
Specimen
Working distance WD
六.電子顯微鏡對試片的作用
➢ 電子束對試片所產生的能量
六.電子顯微鏡對試片的作用
➢ 二次電子與背向電子之區別
背向電子產生原子序對比影像BEI
Sn Pb
六.電子顯微鏡對試片的作用
➢二次電子與背相電子影像比較 SEI vs BEI
JDC
七.電子顯微鏡的應用範圍
掃描式電子顯微鏡應用範圍非常之廣泛,主要目的為將微小 物體放大至能觀察之範圍,所觀察之種類包含以下幾種:
➢生物：種子、花粉、細菌……
➢醫學 ：血球、病毒……
美国国家自然科学基金支持的纳米材料的研究机构
➢The Cornell Nanoscale Facility at Cornell University ➢The Stanford Nanofabrication Facility at Stanford University ➢The Solid State Electronics Laboratory at the University of Michigan ➢The Microelectronics Research Center at the Georgia Institute of Technology ➢The Center for Nanotechnology at the University of Washington ➢The Penn State Nanofabrication Facility at the Pennsylvania State University ➢Nanotech at the University of California at Santa Barbara ➢The Minnesota Nanotechnology Cluster MINTEC at the University of Minnesota ➢The Nanoscience at the University of New Mexico ➢The Microelectronics Research Center at University of Texas at Austin ➢The Center for Imaging and Mesoscale Structures at Harvard University ➢The Howard Nanoscale Science and Engineering Facility at Howard University ➢The Triangle National Lithography Center at NCSU DUV lithography only Affiliate
