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Optical analyses (SE and ATR) and other properties of LPCVD Si3N4 thin films
Thin silicon nitride films (less than 20 nm) deposited on (100) silicon substrates via low pressure chemical vapor deposition (LPCVD) at three temperatures (730, 760, and 825 deg C) were analyzed by spectroscopic ellipsometry (SE), attenuated total reflection (ATR), and other tools. Films appeared t...
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Published in: | Journal of the Electrochemical Society 2003-12, Vol.150 (12), p.G785-G789 |
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Main Authors: | , , , , , , , , , |
Format: | Article |
Language: | English |
Subjects: | |
Online Access: | Get full text |
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Summary: | Thin silicon nitride films (less than 20 nm) deposited on (100) silicon substrates via low pressure chemical vapor deposition (LPCVD) at three temperatures (730, 760, and 825 deg C) were analyzed by spectroscopic ellipsometry (SE), attenuated total reflection (ATR), and other tools. Films appeared to have similar optical bandgaps (~5 eV), and the values decreased slightly with the higher deposition temperature. Second ionic mass spectroscopy results showed that a similar amount of oxygen exists in the interface between silicon and silicon nitride nitride. ATR spectra showed no sign of Si-H bonds and decreasing N-H bonds at higher deposition temperature in the thin films. The electrical properties of the films are also discussed. 10.1149/1.1624842 |
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ISSN: | 0013-4651 1945-7111 |
DOI: | 10.1149/1.1624842 |