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Selective area epitaxy and growth over patterned substrates by chemical beam epitaxy

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4 Author(s)
Tsang, W.T. ; AT+T Bell Labs., Murray Hill, NJ, USA ; Yang, L. ; Wu, M.C. ; Chen, Y.K.

Selective area epitaxy and growth over patterned substrate using chemical beam epitaxy (CBE) were investigated. Truly selective area epitaxy with no deposition over the SiO2 masks has been routinely obtained with excellent epilayer morphology. Uniform coverage was obtained for regrowth over etched mesas to form buried heterostructures. For growth over etch channels, very unique growth characteristics were obtained. Buried crescent stripes similar to those formed by liquid-phase epitaxy inside channels were also obtained by CBE. These growth characteristics demonstrated the unique of CBE for diode laser fabrication.

Published in:

Electronics Letters  (Volume:27 ,  Issue: 1 )