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:
Apr. 07, 1992
Filed:
Jul. 09, 1990
Applicant:
Inventors:
Assignee:
Sharp Kabushiki Kaisha, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01L / ; H01L / ;
U.S. Cl.
CPC ...
357 17 ; 357 61 ;
Abstract
An electroluminescent device of compound semiconductor which comprises a single crystal substrate made of ZnS or a mixed crystal of ZnS and ZnSe and a p-n junction-type epitaxial layer made of ZnSe or a mixed crystal of ZnS and ZnSe having a composition different from that of the single crystal substrate,