Ion milling apparatus and sample processing method
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United States of America Patent
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Sep 12, 2017
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May 9, 2014
filing date -
May 9, 2014
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Abstract
Provided is a technology for suppressing a heat rise in a sample, the heat rise being generated due to ion beam irradiation at a low acceleration voltage. A blocking plate, which is different from a mask, is disposed in front of a sample. The blocking plate has an opening that overlaps a processing surface, and ion beams pass only through the opening of the blocking plate, and in the areas excluding the opening, the ion beams are blocked by the blocking plate, and the sample is not irradiated thereby. Furthermore, the heat rise in the sample is further suppressed by cooling the blocking plate.
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