1998
DOI: 10.1116/1.581526
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Effects of ion pretreatments on the nucleation of silicon on silicon dioxide

Abstract: Low energy ion pretreatment of silicon dioxide (SiO2) surfaces results in a reduced incubation time (tinc) for polycrystalline silicon (poly-Si) deposition by rapid thermal chemical vapor deposition. By pretreating SiO2 surfaces with inert (He+, Ar+) and chemically active species (H+, N+), it was determined that ion pretreatments reduce tinc and increase the poly-Si nuclei density by creating nucleation sites via a physical damage mechanism, rather than a chemical process.

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Cited by 13 publications
(2 citation statements)
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“…Studies have shown that defects can increase the nucleation density of Si nanoparticles on SiO 2 surfaces [24,25], so control experiments were performed to determine if the CHF 3 /O 2 pattern transfer RIE process altered the reactivity of the Si 3 N 4 at the bottom of the features. Fig.…”
Section: Resultsmentioning
confidence: 99%
“…Studies have shown that defects can increase the nucleation density of Si nanoparticles on SiO 2 surfaces [24,25], so control experiments were performed to determine if the CHF 3 /O 2 pattern transfer RIE process altered the reactivity of the Si 3 N 4 at the bottom of the features. Fig.…”
Section: Resultsmentioning
confidence: 99%
“…Shown in the insets are the corresponding diffraction patterns. 13,14 More importantly, the film is fully polycrystalline with large grains right down to the Si/SiO 2 interface. The grain size distribution was also measured, and found to be lognormal ͑not shown͒.…”
Section: B Piii Vs Thermal Pecvdmentioning
confidence: 99%