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US RE35,665 EGranted
Surface light emitting diode with electrically conductive window layer
AssigneeIndustrial Technology Research Institute
InventorsJyh-Feng Lin, Chuan-Ming Chang, Biing-Jye Lee, Ming-Jiunn Jou
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Abstract
A surface emitting AlGaInP LED having an ITO layer as a window layer to eliminate the current crowding effect, and an ohmic contact layer between its double hereto-structure of AlGaInP and the ITO layer, so that ITO can be utilized with the double hereto-structure of AlGaInP.
Claims18
A light emitting diode comprising:
- a GaAS substrate of a first conductivity type, which has a back electrical contact;
- a double hetero-structure of AlGaInP on the substrate;
- ..a transparent.!. an ohmic contact layer on the double hetero-structure;
- a conductive transparent ITO window layer over the ohmic contact layer;
- and
- a front electrical contact on the window layer.
3 more elements
Dependencies are inferred from the claim text.