Title: Optoelectronic displays using uniformly spaced arrays of semisphere light emitting diodes and method of fabricating same

Abstract: Light emitting diodes in a substantially semispherical form having an outer shell-like region of semiconductor material of one conductivity type and a subsurface body of semiconductor material of an opposite conductivity type forming a p-n junction are mounted to a surface of an insulating substrate member extending therefrom to allow a portion of each diode element to protrude past the outer surface of the substrate. Metallic coatings are provided on both the outer shell-like semiconductor material having one conductivity and a second metallic coating is provided on the subsurface body semiconductor material having a second conductivity for electrical contact. A transparent conductive material is further disposed over the diode structure connecting diodes formed in an array.

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Inventors: Myers, David J. (Plano, TX, US)

Application Number: 834630
Filing Date: 1977-09-19
Publication_date: 1979-05-01
Assignee: Texas Instruments Incorporated (Dallas, TX)
Primary Class(es): 257/93 257/98, 257/653, 257/926, 257/E25.02, 257/E33.006, 313/499, 313/500
Other Classes:
US Patent Ref:

3040416	Jun, 1962	Matlow et al.	29/155.
3263110	Jul, 1966	Berg	313/108.
3271631	Sep, 1966	Marinace	317/234.
3391287	Jul, 1968	Kao	307/302.
3443166	May, 1969	In, Jr. et al.	317/234.

Other Refs:
Primary Examiner: Edlow, Martin H.
Assistant Examiner:
Attorney: Comfort; James T., Honeycutt; Gary C.