Optically isolated monolithic light emitting diode array

Details Optically isolated monolithic light emitting diode array Optically isolated monolithic light emitting diode array

H - Electricity

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L

345/9

H01L 27/15 (2006.01) H01L 33/00 (2006.01)

Patent

CA 1108738

OPTICALLY ISOLATED MONOLITHIC LIGHT EMITTING DIODE ARRAY ABSTRACT OF THE DISCLOSURE Monolithic light emitting diode arrays may be fabricated by using a two layer binary semiconductor substrate wafer providing a gradient of ingredient concentration in one portion of the wafer and forming p-n junctions to a desired depth in the graded concentrated wafer and selectively removing portions of the opposite side of the wafer adjacent to said p-n junctions in order to permit light of varying colors to escape and to provide optical isolation. Metallurgical pads are provided to each of the p-n junctions for solder reflow type connections.

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