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Light emitting diodes with back-side emission
T979005 Light emitting diodes with back-side emission
Patent Drawings:Drawing: T979005-2    Drawing: T979005-3    Drawing: T979005-4    Drawing: T979005-5    Drawing: T979005-6    
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(5 images)

Inventor: Edmonds
Date Issued: February 6, 1979
Application: 05/788,179
Filed: April 18, 1977
Inventors: Edmonds; Harold D. (Hopewell Junction, NY)
Assignee: International Business Machines Corporation (Armonk, NY)
Primary Examiner:
Assistant Examiner:
Attorney Or Agent:
U.S. Class: 257/88; 257/93; 257/95
Field Of Search:
International Class: H01L 33/00
U.S Patent Documents:
Foreign Patent Documents:
Other References:









Abstract: a back-side light-emitting diode comprised of an N-type free-standing monocrystalline planar substrate of a III-V ternary compound in which a P-type impurity is diffused into one of the planar surfaces, of the substrate, with the distance x in microns from the junction depth to the other planar surface conforming to the relationship x = 0.5/.alpha., where .alpha. is the absorption coefficient of said compound at a 7,000 Angstrom wavelength.
Claim:
Description:
 
 
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