Semiconductor light emitting diode with high operating speed
First Claim
1. A semiconductor light emitting device comprising:
- a laminated semiconductive structure comprising a substrate, an active layer thereon and a second layer adjacent the active layer remote from the substrate, the second layer having an inner region of high carrier concentration and an outer region of lower carrier concentration;
an insulative layer on said second layer, the insulative layer having a window coaxial with and larger than said inner region; and
a first electrode on said insulative layer establishing an ohmic contact through said window with said inner region and a Schottky-barrier contact through said window with said outer region, and a second electrode on said substrate opposite to said first electrode, the second electrode having a window for allowing light to leave therethrough.
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Accused Products
Abstract
A semiconductor light emitting device comprises a laminated semiconductive structure including a substrate, an active layer thereon and a second layer adjacent the active layer remote from the substrate, the second layer having an inner region of high carrier concentration and an outer region of lower carrier concentration. An insulative layer is on the second layer, the insulative layer having a window coaxial with and larger than the inner region. A first electrode deposited on the insulative layer establishes an ohmic contact with the inner region of the second layer and a Schottky-barrier contact with the outer region. A second electrode is provided on the substrate opposite to the first electrode, the second electrode having a window for allowing light to leave therethrough.
11 Citations
6 Claims
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1. A semiconductor light emitting device comprising:
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a laminated semiconductive structure comprising a substrate, an active layer thereon and a second layer adjacent the active layer remote from the substrate, the second layer having an inner region of high carrier concentration and an outer region of lower carrier concentration; an insulative layer on said second layer, the insulative layer having a window coaxial with and larger than said inner region; and a first electrode on said insulative layer establishing an ohmic contact through said window with said inner region and a Schottky-barrier contact through said window with said outer region, and a second electrode on said substrate opposite to said first electrode, the second electrode having a window for allowing light to leave therethrough. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification