DocumentCode
2349671
Title
The effect of implant dose rates and two step anneals on p+ -n ultra-shallow junctions
Author
Sultan, A. ; Craig, M. ; Reddy, K. ; Banerjee, S. ; Ishida, E. ; Maillot, P. ; Larson, L.
Author_Institution
Microelectron. Res. Center, Texas Univ., Austin, TX, USA
fYear
1995
fDate
16-17 May 1995
Firstpage
108
Lastpage
112
Abstract
Ultra-shallow junctions are obtained using low energy BF2 (5 keV) implants in crystalline Si. The variation in junction depth as a function of dose rate and two-step anneals is studied for doses of 1×1014 and 1×1015 cm-2 . B diffusion is retarded in the tail region for the higher dose rates and consequently the junction depth decreases as compared to the lower dose rates. Junction depth is further reduced for the two-step anneals as compared to the single-step RTA
Keywords
annealing; boron compounds; diffusion; elemental semiconductors; ion implantation; p-n junctions; rapid thermal annealing; silicon; 5 keV; B diffusion; RTA; Si:BF2; crystalline Si; implant dose rate; p+-n ultra-shallow junctions; two step anneal; Amorphous materials; Crystallization; Current density; Hoses; Ion implantation; Microelectronic implants; Rapid thermal annealing; Tail; Temperature; Very large scale integration;
fLanguage
English
Publisher
ieee
Conference_Titel
University/Government/Industry Microelectronics Symposium, 1995., Proceedings of the Eleventh Biennial
Conference_Location
Austin, TX
ISSN
0749-6877
Print_ISBN
0-7803-2596-6
Type
conf
DOI
10.1109/UGIM.1995.514126
Filename
514126
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