期刊
JAPANESE JOURNAL OF APPLIED PHYSICS
卷 58, 期 7, 页码 -出版社
IOP PUBLISHING LTD
DOI: 10.7567/1347-4065/ab25ba
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资金
- Nano.Material Technology Development Program through the National Research Foundation of Korea (NRF) - Ministry of Science, ICT, and Future Planning [7045122]
We investigate the Ni-Si film silicidation process on 4H-SiC and Si substrates and compare the thermal stability of the films grown on each substrate. The Ni-Si films were subjected to rapid thermal annealing (RTA) in the temperature range 575 degrees C-975 degrees C for 90 s, and their thermal stability was characterized by in-situ temperature-dependent sheet resistance measurements at temperatures of 25 degrees C-550 degrees C. The sheet resistance of a 40 nm thick Ni film was observed to increase sharply above 330 degrees C in the Ni/Si (100) interface, but slightly decrease at approximately 480 degrees C in the Ni/4H-SiC interface. The thermal stability of the films was found to be significantly dependent on the RTA temperature. Thermally stable Ni-Si silicide films with excellent Ohmic properties (no hysteresis behavior) can be obtained on 4H-SiC substrates at RTA temperatures of 925 degrees C-975 degrees C and can used for application in MOSFET devices. (C) 2019 The Japan Society of Applied Physics
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