We report the Schottky barrier height (SBH) tuning at the nickel silicide (NiSi)/p-Si junction by the introduction of aluminum (Al) using ion implantation and its segregation after silicidation. The SBH for holes has been found to decrease with increasing concentration of Al at the NiSi/p-Si interface. We demonstrate the achievement of one of the lowest reported SBH for holes of 0.12 eV, with less than 0.1 at. % Al in NiSi, which is promising for application in p-channel Schottky source/drain transistors.
Published in:
Applied Physics Letters
(Volume:92
,
Issue:
22
)
Date of Publication:
Jun 2008
- Page(s):
-
222114
-
222114-3
- ISSN :
-
0003-6951
- Digital Object Identifier :
-
10.1063/1.2940596
- Product Type:
-
Journals & Magazines
- Date of Current Version :
-
18 June 2009
- Issue Date :
-
Jun 2008