Work

Ramp-Rate Effects on Transient Enhanced Diffusion and Dopant Activation

Year: 2003
Type: article
Abstract: Use of high ramp rates (>400°C/s) in rapid thermal annealing after ion implantation leads to experimentally observed improvements in junction depth and the reverse narrow-channel effect. However, a straightforward explanation for this effect has been lacking. Via modeling, we find that increasing the heating rate permits clusters with dissociation energies lower than the maximum of 3.5-3.7 eV to survive to higher temperatures. This improved survival delays the increase in Si interstitial concentrations near the top of an annealing spike, which decreases the profile spreading. © 2003 The Electrochemical Society. All rights reserved.
Language: English
Open Access status: bronze
OpenAlex ID: W2064698951
FWCI: 2.324
Cites: 17
Cited by: 26
Related to: 10