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Wafer identification mark
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Patent number 7,510,124
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Issue date Mar 31, 2009
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International Business Machines Corporation
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Brian Barker
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H01 - BASIC ELECTRIC ELEMENTS
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Wafer identification mark
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Patent number 7,007,855
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Issue date Mar 7, 2006
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International Business Machines Corporation
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Brian C. Barker
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H01 - BASIC ELECTRIC ELEMENTS
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Reactive ion etching buffer mask
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Patent number 5,298,790
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Issue date Mar 29, 1994
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International Business Machines Corporation
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David L. Harmon
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H01 - BASIC ELECTRIC ELEMENTS
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Reactive ion etching buffer mask
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Patent number 5,118,384
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Issue date Jun 2, 1992
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International Business Machines Corporation
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David L. Harmon
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H01 - BASIC ELECTRIC ELEMENTS