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. 13, 2004
Filed:
Apr. 16, 2002
National Research Council of Canada, Ottawa, CA;
Abstract
Many integrated circuits require a multilayer structure which contains layer of an organic or polymeric material with a patterned metallic layer on it. Laser patterning has many favorable characteristics but it also damages the organic or polymeric material. A novel method is disclosed that makes possible laser patterning of conductive metal electrode deposited on top of an organic and/or polymeric material without significant ablation of the organic and/or polymeric material. The method can achieve higher patterning resolution, resulting in higher quality integrated circuits. The method is based on the application of a thin coating of an inexpensive anti-reflector deposited on top of the desired metal electrode which in turn lies on the organic and/or polymeric material. The thin anti-reflecting coating allows the use of a lower fluence laser for ablation of metal layer without damaging the underlying organic and/or polymeric material.