Light emitting devices including tunnel junctions
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United States of America Patent
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Nov 23, 2004
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app pub date -
Sep 30, 2002
filing date -
Sep 30, 2002
priority date (Note) -
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Abstract
A light emitting device includes a first active region, a second active region, and a tunnel junction. The tunnel junction includes a layer of first conductivity type and a layer of second conductivity type, both thinner than a layer of first conductivity type and a layer of second conductivity type surrounding the first active region. The tunnel junction permits vertical stacking of the active regions, which may increase the light generated by a device without increasing the size of the source.
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