Laser Annealing Simulations of Metallisations Deposited on 4H-SiC

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Abstract:

Based on finite elements method, thermal simulations were conducted to reproduce a laser annealing of several common metals deposited on 4H-SiC. We estimated the temperature reached at the metal/4H-SiC interface to check the possibility to achieve ohmic contact formation through laser annealing. An optimization of Al/Ti/4H-SiC stacking was also considered. Simulations highlighted the low temperature of the non-irradiated SiC face that allows using grinded wafer.

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502-505

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July 2019

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© 2019 Trans Tech Publications Ltd. All Rights Reserved

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[1] T. Kimoto, J. A. Cooper, Fundamentals of silicon carbide technology: growth, characterization, devices and applications, Wiley, Singapore, (2014).

Google Scholar

[2] F. Mazzamuto, S. Halty, H. Tanimura, Y. Mori, Low Thermal Budget Ohmic Contact Formation by Laser Anneal, Mat. Sci. Forum 858 (2016), 565-568.

DOI: 10.4028/www.scientific.net/msf.858.565

Google Scholar

[3] R. Rupp, R. Kern, R. Gerlach, Laser backside contact annealing of SiC power devices: A prerequisite for SiC thin wafer technology, 25th ISPSD, Kanazawa (2013), 51-54.

DOI: 10.1109/ispsd.2013.6694396

Google Scholar

[4] M. De Silva, T. Kawasaki, T. Kikkawa, S. I. Kuroki, Low Resistance Ti-Si-C Ohmic Contacts for 4H-SiC Power Devices Using Laser Annealing, Mat. Sci. Forum 897 (2017), 399-402.

DOI: 10.4028/www.scientific.net/msf.897.399

Google Scholar

[5] M. De Silva, S. Ishikawa, T. Miyazaki, T. Kikkawa, S.-I. Kuroki, Formation of amorphous alloys on 4H-SiC with NbNi film using pulsed-laser annealing, Appl. Phys. Lett. 109 (2016), 012101.

DOI: 10.1063/1.4955406

Google Scholar

[6] Y. Cheng, W. Lu, T. Wang, Z. Chen, Fabrication of Ohmic contact on semi-insulating 4H-SiC substrate by laser thermal annealing, J. Appl. Phys. 119 (2016), 225705.

DOI: 10.1063/1.4953778

Google Scholar

[7] T. Abi-Tannous, M. Soueidan, G. Ferro, M. Lazar, B. Toury, M.F. Beaufort, J.F. Barbot, J. Panuelas, D. Planson, Parametric investigation of the formation of epitaxial Ti3SiC2 on 4H-SiC from Al-Ti annealing, Appl. Surf. Sci. 347 (2015), 186-192.

DOI: 10.1016/j.apsusc.2015.04.077

Google Scholar