Internal gettering of oxygen in III-V compound semiconductors
A method and article of manufacture are disclosed comprising substantially increasing the electrical activation and mobility of electrons in a III-V semiconductor material containing minor amounts of oxygen by doping a III-V crystalline material with an n-type dopant and adding or implanting an oxyg...
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Main Authors | , , |
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Format | Patent |
Language | English French German |
Published |
19.08.1992
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Subjects | |
Online Access | Get full text |
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Summary: | A method and article of manufacture are disclosed comprising substantially increasing the electrical activation and mobility of electrons in a III-V semiconductor material containing minor amounts of oxygen by doping a III-V crystalline material with an n-type dopant and adding or implanting an oxygen reactive element in the III-V material where the doses of dopant and implanted oxygen reactive element are low enough to effect this increase. These doses typically do not exceed about 1E13 cm<-> and 4.5E12 cm<-> respectively. The added or implanted oxygen reactive element preferably is at a dose less than the n-type dopant. Experimental data indicate that the added or implanted oxygen reactive element acts as a gettering agent to form an oxygen depleted zone between dopant and oxygen reactive element regions. |
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Bibliography: | Application Number: EP19920101763 |