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:
Sep. 07, 1993
Filed:
Dec. 19, 1991
Applicant:
Inventor:
C Jacob Sun, Worthington, OH (US);
Assignee:
Photonic Integration Research, Inc., , OH (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C03B / ;
U.S. Cl.
CPC ...
65 322 ; 65-311 ; 65 5923 ; 6537415 ;
Abstract
An optical waveguide forming process is disclosed which enables glass waveguides to be deposited on metalized substrates without substantial degradation of the wiring of the substrate. The process involves the use of carbon material to protect the metal wiring on or embedded in the substrate during the consolidation phase of the waveguide formation. The carbon plate reacts readily with oxygen impurities to control the oxygen partial Pressure during the consolidation phase.