Pentium4_northwood_compare_of_etching_and_lapping_with_microscope
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pentium4_northwood_compare_of_etching_and_lapping_with_microscope

The lapped pentium 4 from Mar/20/2016 in comparison of a etched pentium 4. Before etch with glas etching cream, the chip was totally scratched. look with a reflected light microscope

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