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Electrical contacts to ion cleaned n-type gallium arsenide. (1972)

Walker, G. H. ; Conway, E. J.

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Publication Date: 2011-08-16

Description: The electrical current through silver contacts evaporated onto n-type gallium arsenide is reported as a function of surface treatment. Contacts to untreated gallium arsenide exhibit the expected high resistance. Surface cleaning by argon ion bombardment reduces the resistance by three orders of magnitude. The electrical resistance beyond 850 eV increases rapidly with ion bombardment energy. The resistance minimum at 850 eV is explained semiquantitatively in terms of a balance between cleaning and surface damage.

Keywords: ELECTRONIC EQUIPMENT

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