Physics – Condensed Matter – Materials Science
Scientific paper
2010-02-26
Thin Solid Films 518 (2010) 2524-2527
Physics
Condensed Matter
Materials Science
4 pages, 6 figures
Scientific paper
10.1016/j.tsf.2009.09.152
A deep level transient spectroscopy (DLTS) study of defects created by low-fluence, low-energy ion implantation for development of ion-implanted silicon field-effect transistors for spin-dependent transport experiments is presented. Standard annealing strategies are considered to activate the implanted dopants and repair the implantation damage in test metal-oxide-semiconductor (MOS) capacitors. Fixed oxide charge, interface trapped charge and the role of minority carriers in DLTS are investigated. A furnace anneal at 950 $\rm ^{o}$C was found to activate the dopants but did not repair the implantation damage as efficiently as a 1000 $\rm ^{o}$C rapid thermal anneal. No evidence of bulk traps was observed after either of these anneals. The ion- implanted spin-dependent transport device is shown to have expected characteristics using the processing strategy determined in this study.
Gauja E.
Johnson Brett C.
McCallum Jeffrey C.
van Beveren Laurens H. Willems
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