화학공학소재연구정보센터
학회 한국화학공학회
학술대회 2006년 가을 (10/27 ~ 10/28, 고려대학교)
권호 12권 2호, p.2408
발표분야 재료
제목 Characterization of Titanium Nitride Reaction Products Formed at Various Temperatures in Chemical Deposition Processes
초록 The reaction products of TiN deposition processes formed below 200℃ is characterized in this work. TiN reaction product in high temperature above 500℃ is relatively well characterized but the product in the temperature range below 200℃ is not well known. By understanding the reaction mechanism below 200℃ we can control and reduce the unwanted TiN particle formed in the exhaust line and pumping system, which lead to the improvement of productivity in TiN chemical vapor deposition processes.
The reaction is observed at various parts of chemical vapor deposition chamber including chamber, line, and TiN particle trap. The reactive feed gases are TiCl4 and NH3 and the products are composed of Ti, N, Cl, and H. The composition of reaction product below 200℃ is analyzed by energy dispersion spectrometer (EDS). The reaction product, TiNxCly, is also heated to higher temperatures above 530℃ to observe the composition change dependence on temperature. The atomic composition of the reaction products were Ti:N:Cl = 1: 11.7: 13.0 at 25℃, TiNxCly at 530℃. On heating the reaction product, TiNxCly, the stoichiometric ratio of Ti and N becomes close to 1:1.
저자 정동훈, 채희엽
소속 성균관대
키워드 Titanium nitride; TiCl4; NH3
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