Atomic profiles and electrical characteristics of very high energy (8–20 MeV) Si implants in GaAs
- 1 February 1990
- journal article
- conference paper
- Published by AIP Publishing in Journal of Applied Physics
- Vol. 67 (3) , 1262-1265
- https://doi.org/10.1063/1.345701
Abstract
High‐energy Si implantation into GaAs is of interest for the fabrication of fully implanted, monolithic microwave integrated circuits. Atomic concentration profiles of 8, 12, 16, and 20 MeV Si have been measured using secondary ion mass spectroscopy (SIMS). The range and shape parameters have been determined for each energy. The theoretical atomic concentration profile for 12 MeV Si calculated using TRIM‐88 corresponded to the SIMS experimental profile. No redistribution of the Si was observed for either furnace anneal, 825 °C, 15 min, or rapid thermal anneal, 1000 °C, 10 s. The activation of the Si improved when coimplanted with S. The coimplanted carrier concentration profiles did not show dopant diffusion. Peak carrier concentration of 2×1018/cm3 was obtained with a Si and S dose of 1.5×1014/cm2 each.This publication has 12 references indexed in Scilit:
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