Method of reducing loading variation during etch processing

In preparation for etch processing a semiconductor chip having areas of little or no pattern and areas that are heavily patterned, adding non-operative patterns to the areas having little or no pattern so that the overall pattern density is about the same across the chip.

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Bibliographische Detailangaben
Hauptverfasser: FRANK PREIN, ANDREAS KLUWE, LARS LIEBMANN
Format: Patent
Sprache:eng
Schlagworte:
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Beschreibung
Zusammenfassung:In preparation for etch processing a semiconductor chip having areas of little or no pattern and areas that are heavily patterned, adding non-operative patterns to the areas having little or no pattern so that the overall pattern density is about the same across the chip.