The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 23, 1976
Filed:
Aug. 12, 1974
Applicant:
Inventors:
William N Jacobus, Jr, Essex Junction, VT (US);
San-Mei Ku, Poughkeepsie, NY (US);
Assignee:
IBM Corporation, Armonk, NY (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ; H01S / ;
U.S. Cl.
CPC ...
357 17 ; 357 18 ; 357 54 ; 357 52 ;
Abstract
Disclosed is a semiconductor light emitting diode (LED) array in which 'cross-talk' between adjacent diodes in the array is minimized. The disclosed LED arrays have an absorbing layer on the backside of the devices and/or a guard ring region surrounding each device in order to absorb spurious reflections within the semiconductor crystal. Disclosed also is a method of making improved light emitting diodes (LED's).