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Titre du document / Document title

Influence of co-implantation on the activation and diffusion of ultra-shallow extension implantation

Auteur(s) / Author(s)

HERDEN Marc ; GEHRE Daniel ; FEUDEL Thomas ; WEI Andy ; BERSANI Massimo ; MANNINO Giovanni ; BERG Jaap V. D. ;

Résumé / Abstract

Scaling options for S/D extension junctions of MOS transistors by anneal temperature variation or by application of co-implantation were investigated. Blank wafer and test structure experiments showed that the main contribution to reduce junction depth and to fulfill the requirements of downscaled devices was temperature reduction. The implementation of co-implantation of F, C or N or of pre-amorphization provided another degree of junction depth variation. For p+n-junctions suppression of B diffusion was found from SIMS measurements when the parameters of the co-implantation were optimized to the dopant implantation. Also the use of different species for pre-amorphization influenced the electrical junction characteristics, shown by SRP. For As implanted n+p-junctions a variation in electrical junction depth was observed that is related to the species implanted prior to the As dopant implantation.

Revue / Journal Title

Nuclear instruments & methods in physics research. Section B, Beam interactions with materials and atoms    ISSN  0168-583X 

Source / Source

2005, vol. 237, no1-2, pp. 203-207 [5 page(s) (article)]

Langue / Language

Anglais

Editeur / Publisher

Elsevier, Amsterdam, PAYS-BAS  (1984) (Revue)

Mots-clés d'auteur / Author Keywords

61.72.Tt

;

85.40.Ry Ion implantation

;

Ultra shallow junctions

;

Diffusion

;

Localisation / Location

INIST-CNRS, Cote INIST : 8578 B, 35400013241196.0380

Nº notice refdoc (ud4) : 17036293



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