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Demonstration of p-type 3C–SiC grown on 150 mm Si(1 0 0) substrates by atomic-layer epitaxy at 1000 °C

✍ Scribed by Li Wang; Sima Dimitrijev; Jisheng Han; Philip Tanner; Alan Iacopi; Leonie Hold

Publisher
Elsevier Science
Year
2011
Tongue
English
Weight
444 KB
Volume
329
Category
Article
ISSN
0022-0248

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✦ Synopsis

The potential for enhancement of Si-based devices by growth of SiC films on large-diameter Si wafers is hampered by the very high temperatures (close to the Si melting temperature) that are needed for growth and doping by the existing techniques. Here, we present a unique doping method for growth of Al-doped single-crystalline 3C-SiC epilayers on 150 mm Si(1 0 0) substrates by atomic-layer epitaxy at 1000 1C using a conventional low-pressure chemical vapor deposition reactor. Al atomic concentration in the range of 2.8 Â 10 19 to 2.1 Â 10 20 cm À 3 , proportional to the supply volume of trimethylaluminium, is experimentally demonstrated. A doping mechanism, based on the supply sequence of precursors and reactor pressure, is proposed.

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