METHOD FOR PROVIDING IMPROVED STEP COVERAGE OF DEEP TRENCHES AND USE THEREOF

Disclosed is a method for providing improved step coverage of deep trenches. A hard mask which constitutes a bottom silicon oxide layer and a top silicon nitride layer is formed on a substrate and patterned to form a opening. A deep trench extending into the substrate is formed through the opening....

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Bibliographische Detailangaben
1. Verfasser: CHIU, YIH-SONG
Format: Patent
Sprache:eng
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