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. 20, 2005
Filed:
Dec. 24, 2002
Jun-ying Zhang, St. Paul, MN (US);
Brian J. Gates, Eagan, MN (US);
Jeremy K. Larsen, Oakdale, MN (US);
Barry J. Koch, Woodbury, MN (US);
Terry L. Smith, Roseville, MN (US);
Jun-Ying Zhang, St. Paul, MN (US);
Brian J. Gates, Eagan, MN (US);
Jeremy K. Larsen, Oakdale, MN (US);
Barry J. Koch, Woodbury, MN (US);
Terry L. Smith, Roseville, MN (US);
3M Innovative Properties Company, St. Paul, MN (US);
Abstract
A method for manufacturing an optical waveguide device in accordance with the present invention includes the steps of depositing a lower cladding layer; coating a photoresist layer directly on the lower cladding layer; patterning the photoresist layer to create channels; depositing a core layer, wherein a first portion of the core layer is deposited inside the channels and a second portion overlays the patterned photoresist layer; removing the patterned photoresist layer and the second portions of the core layer overlaying the patterned photoresist layer; and depositing an upper cladding layer.