DocumentCode
2460490
Title
Low energy implant throughput improvement by using the Arsenic dimer ion (As2+) on the Axcelis GSDIII/LED ion implanter
Author
Kopalidis, P. ; Sohl, C. ; Freer, B.S. ; Arneen, M. ; Reece, R. ; Rathmell, M.
fYear
2002
fDate
27-27 Sept. 2002
Firstpage
122
Lastpage
125
Abstract
Low energy arsenic implants used in the formation of ultra-shallow junctions are characterized on the GSD/Ultra high current ion implanter. Significant advantages in beam current and process throughput are demonstrated by using the Arsenic dimer ion (As2+) for implant energies lower than 5 keV. Dimer implants require only half the dose and use twice the energy of equivalent As implants, resulting in significantly reduced implant times. Process results including Thermawave (TW), sheet resistance (Rs) and SIMS profiles show equivalence between As+ and As2+ implants.
Keywords
CMOS integrated circuits; arsenic; ion implantation; secondary ion mass spectra; semiconductor doping; As2+; As2+ ion implantation; Axcelis GSDIII/LED ion implanter; SIMS profiles; beam current; low energy implant throughput improvement; process throughput; sheet resistance; ultra-shallow junctions; CMOS integrated circuits; Electrons; Implants; Ion implantation; Light emitting diodes; Particle beams; Plasma sources; Productivity; Thermal resistance; Throughput;
fLanguage
English
Publisher
ieee
Conference_Titel
Ion Implantation Technology. 2002. Proceedings of the 14th International Conference on
Conference_Location
Taos, New Mexico, USA
Print_ISBN
0-7803-7155-0
Type
conf
DOI
10.1109/IIT.2002.1257954
Filename
1257954
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