화학공학소재연구정보센터
Korean Journal of Materials Research, Vol.13, No.3, 200-204, March, 2003
통계적 실험 방법을 이용한 티타늄실리사이드의 열적안정성 연구
Characterizing the Thermal Stability of TiSi 2 Film by Using the Statistical Experimental Method
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A statistical experiment method was employed to investigate the window of the thermal stability of TiSi 2 films which are popular for Ti-salicide and ohmic layers. The statistical experimental results showed that the first order term of TiSi 2 thickness and annealing temperature was acceptable as a function of Δ resistivity by 95% reliability criteria, and R-sq value implying a fit accuracy of the model also showed a high value of 93.80%. We found that Δ resistivity of the TiSi 2 film annealed at 700 ? C for 1 hr changed from 3.35 to 0.379μ Ω ? cm with increasing thickness from 185 to 703\AA , and TEX>Δ resistivity of the TiSi 2 film with a fixed thickness of 444 \AA changed from 0.074 to 17.12 μ Ω ? cm with increasing temperature increase from 600 to 800 ? C . From these results, we report that the process conditions of 692 ? C -1 hr, 715 ? C -1 hr, and 73 0 ? C -1 hr for TiSi 2 ( 400\AA ) are stable by the criteria of 1, 2, and 3 μ Ω ? cm of Δ resistivity, respectively.
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