Abstract
This work explores the effects of arsenic on rapid thermal chemical vapor deposition (RTCVD) of TiSi2. The films were deposited using TiCl4 and SiH4 on 100 mm oxide patterned silicon wafers selectively at temperatures ranging from 750°C to 850°C. Arsenic dose levels ranging from 3×1014 cm-2 to 5×1015 cm-2 at 50 keV were considered. Experimental results reveal that arsenic results in a resistance to TiSi2 nucleation and enhanced silicon substrate consumption. These effects are enhanced at higher arsenic dose levels and reduced at higher deposition temperatures. We propose an arsenic-surface-passivation model to explain the effects.
Original language | English (US) |
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Pages (from-to) | 231-236 |
Number of pages | 6 |
Journal | Materials Research Society Symposium - Proceedings |
Volume | 514 |
DOIs | |
State | Published - 1998 |
Externally published | Yes |
Event | Proceedings of the 1998 MRS Spring Symposium - San Francisco, CA, USA Duration: Apr 15 1998 → Apr 16 1998 |
ASJC Scopus subject areas
- General Materials Science
- Condensed Matter Physics
- Mechanics of Materials
- Mechanical Engineering