Ohmic contacts produced by laser‐annealing Te‐implanted GaAs
作者:
P. A. Barnes,
H. J. Leamy,
J. M. Poate,
S. D. Ferris,
J. S. Williams,
G. K. Celler,
期刊:
Applied Physics Letters
(AIP Available online 1978)
卷期:
Volume 33,
issue 11
页码: 965-967
ISSN:0003-6951
年代: 1978
DOI:10.1063/1.90237
出版商: AIP
数据来源: AIP
摘要:
We report the formation of Ohmic contacts to high‐dose (∼1016cm−2) Te‐implantedn‐type GaAs annealed with aQ‐switched Nd : YAG laser. The annealing results in a Te concentration greater than 10 times the equilibrium solubility and the formation of free Ga at the surface. Ohmic contacts of specific contact resistancerc≃2×10−5&OHgr; cm2were obtained by first removing the surface Ga by an HCl etch and then backsputtering to remove 50 A˚ of GaAs, thereby exposing a surface of high Te concentration.
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