STI Gap-Fill Technology with High Aspect Ratio Process for 45nm CMOS and beyond

A. Tilke, M. Culmsee, R. Jaiswal, Roland Hampp, R. Conti, M. Galiano, C. Stapelmann, W. Wille, Arpan Jain

2006 · 18 citations · 1 references

Concepts

Abstract

In the present work the high aspect ratio process (HARP) using a new O <sub xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3</sub> /TEOS based sub atmospheric chemical vapor deposition process was implemented as STI gap fill in sub-65nm CMOS. We prove good gap fill performance up to aspect ratios larger 10:1. Since this fill process doesn't attack the STI liners as compared to HDP, a variety of different STI liners can be implemented

References

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