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:
Jul. 07, 1987
Filed:
Mar. 07, 1986
Gordon A Shifrin, Malibu, CA (US);
Robert G Hunsperger, Malibu, CA (US);
Hughes Aircraft Company, Los Angeles, CA (US);
Abstract
Disclosed are novel opto-isolator devices and processes for fabricating same wherein suitable semiconductive substrates, such as galium arsenide wafers, are treated with conductivity type determining impurities in such a manner as to form radiation emitters, radiation detectors and interconnecting waveguides therein. These operative regions which form a monolithic opto-isolator have the necessary electro-optical characteristics for generating and coupling radiation from the emitter and through the waveguide coupler to the detector; and all of these regions may be integrally fabricated in a monolithic batch fabrication process. Such process may use, for example, particle implantation and masking steps, thereby ensuring high yield and low cost device fabrication.