Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
February 1, 2011
Patent Application Number
11898116
Date Filed
September 10, 2007
Patent Primary Examiner
Patent abstract
A quantum dot (22) is formed on a GaAs substrate (20). In the quantum dot (22), a single electron exists. A cap layer (26) is formed on a surrounding area of the quantum dot (22), and a barrier layer (28) is formed thereon. A quantum dot (30) for detection is formed on the barrier layer (28). Then, a cap layer (34) covering the quantum dot (30) and the like is formed.
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