Method of forming conductive traces on insulated substrate
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United States of America Patent
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Nov 22, 2016
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app pub date -
Jan 22, 2014
filing date -
Dec 20, 2013
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Abstract
A method of forming conductive traces on insulated substrate includes the steps of providing an insulated substrate; forming a coating layer on a surface of the insulated substrate, dividing the coating layer into traces-forming zones and non-traces-forming zones through laser engraving, and removing areas of the coating layer that are located in the traces-forming zones through laser-vaporizing to expose corresponding portions of the surface of the insulated substrate; forming a metallized layer of conductive traces by performing a metallizing treatment on the exposed portions of the insulated substrate and on the coating layer; and directly stripping off the residual coating layer from the non-traces-forming zones or removing it using an acid, an alkaline or a neutral solution.
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