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dc.titleMaterial and electrical characterization of nickel silicide-carbon as contact metal to silicon-carbon source and drain stressors
dc.contributor.authorLee, R.T.P.
dc.contributor.authorYang, L.-T.
dc.contributor.authorAng, K.-W.
dc.contributor.authorLiow, T.-Y.
dc.contributor.authorTan, K.-M.
dc.contributor.authorWong, A.S.-W.
dc.contributor.authorSamudra, G.S.
dc.contributor.authorChi, D.-Z.
dc.contributor.authorYeo, Y.-C.
dc.identifier.citationLee, R.T.P.,Yang, L.-T.,Ang, K.-W.,Liow, T.-Y.,Tan, K.-M.,Wong, A.S.-W.,Samudra, G.S.,Chi, D.-Z.,Yeo, Y.-C. (2007). Material and electrical characterization of nickel silicide-carbon as contact metal to silicon-carbon source and drain stressors. Materials Research Society Symposium Proceedings 995 : 61-66. ScholarBank@NUS Repository.
dc.description.abstractIn this paper, the material and electrical characteristics of Nickel-Silicon-Carbon (NiSi:C) films were investigated for the first time to ascertain the compatibility of NiSi:C contacts to silicon-carbon (Si:C) source/drain stressors. The incorporation of 1 atomic percent of carbon was found to increase both the Ni2Si-to-NiSi and NiSi-to-NiSi2 transformation temperatures. Our results show that the incorporation of carbon stabilizes the interfacial and surface morphology of NiSi :C films. We speculate that the incorporated carbon segregates into the NiSi :C grain boundaries and suppresses film agglomeration and NiSi-to-NiSi2 phase transformation. X-ray diffraction analysis further revealed that the formed NiSi:C films possessed a preferred orientation. Current-voltage measurements for NiSi and NiSi:C n+/p junctions exhibit similar cumulative distribution for junction leakage indicating that carbon incorporation does not have a detrimental impact on the n+/p junction integrity. Our results suggest that NiSi:C is a suitable self-aligned contact metal silicide to n-channel MOSFETs with SiC S/D stressors in a similar manner to the way in which NiSiGe is used for p-channel MOSFETs with SiGe S/D stressors. © 2007 Materials Research Society.
dc.typeConference Paper
dc.contributor.departmentELECTRICAL & COMPUTER ENGINEERING
dc.description.sourcetitleMaterials Research Society Symposium Proceedings
Appears in Collections:Staff Publications

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