Abstract
A study is performed to obtain insight in etch- profile tailoring of high aspect ratio trenches (2 μm wide and 40 μm deep) to achieve void-free refilling with LPCVD SiRN. The trench profile obtained with Bosch DRIE is the most important factor determining formation of voids. Various Bosch recipes are characterized with respect to profile determining features and its applicability in void-free refilling.
Original language | English |
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Title of host publication | Proceedings of the 16th MME MicroMechanics Europe Workshop |
Subtitle of host publication | 4-6 September 2005, Göteborg, Sweden |
Editors | Peter Enoksson |
Place of Publication | Göteborg, Sweden |
Publisher | Chalmers University of Technology |
Pages | 1-4 |
Number of pages | 4 |
ISBN (Print) | 91-631-7553-3 |
Publication status | Published - 2005 |
Event | 16th MicroMechanics Europe Workshop, MME 2005 - Göteborg, Sweden Duration: 4 Sept 2005 → 6 Sept 2005 Conference number: 16 |
Workshop
Workshop | 16th MicroMechanics Europe Workshop, MME 2005 |
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Abbreviated title | MME |
Country/Territory | Sweden |
City | Göteborg |
Period | 4/09/05 → 6/09/05 |
Keywords
- Silicon
- Trench filling
- Scalloping
- Nitride
- LPCVD
- Void
- Bosch etching