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Scientific American

September 1, 1987

1 min read

Butterfly Catcher

Butterfly-shaped flaws gather up metallic impurities in silicon

By Gregory Greenwell

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This article was originally published with the title “Butterfly Catcher” in Scientific American Magazine Vol. 257 No. 3 (September 1987), p. 28
doi:10.1038/scientificamerican0987-28

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