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pjqyw2铁虫 (小有名气)
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【请教】扫描电镜喷金 已有15人参与
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扫描电镜喷金 为什么在看扫描电镜之前要喷金，喷金有什么用，为什么是不导电的才能喷金。本人刚刚入门，哪位高手帮忙指点一下，越详细越好。 [ Last edited by wdwsnnu on 2010-4-12 at 13:52 ] |
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kyle.wu.cn
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22楼2012-03-30 18:14:12
waiwaide
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2楼2010-04-12 10:40:45
dazhi7758
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3楼2010-04-12 10:49:04
★
骑着蜗牛追火箭(金币+1):谢谢 2010-04-12 11:17
pjqyw2(金币+1):很专业，不错。 2010-04-12 15:15
骑着蜗牛追火箭(金币+1):谢谢 2010-04-12 11:17
pjqyw2(金币+1):很专业，不错。 2010-04-12 15:15
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Conductive Coating – An ultrathin coating of electrically-conducting material, deposited either by high vacuum evaporation or by low vacuum sputter coating of the sample. This is done to prevent the accumulation of static electric fields at the specimen due to the electron irradiation required during imaging. Such coatings include gold, gold/palladium, platinum, tungsten, graphite etc. and are especially important for the study of specimens with the scanning electron microscope. Another reason for coating, even when there is more than enough conductivity, is to improve contrast, a situation more common with the operation of a FESEM (field emission SEM). When an osmium coater is used, a layer far thinner than would be possible with any of the previously mentioned sputtered coatings is possible wiki百科，说的很好 1。防止静电积累 2。即使导电性足够，也可提高成像对比 [ Last edited by 北交宁宁 on 2010-4-12 at 10:55 ] |
4楼2010-04-12 10:51:59