Method of preparing a substrate for depositing a metal on selected portions thereof
Abstract
Abstract STRATE AND MASKING FILM ARE NEXT TREATED WITH A CATALYTIC ACTIVATING SOLUTION, AND A THIN LAYER OF THE CATALYST IS DEPOSITED ONLY ON THE SENSITIZED SELECTED PORTIONS OF THE SUBSTRATE SURFACE. A METHOD OF PREPARING A SUBSTRATE FOR THE DEPOSITION OF A METAL ON SELECTED PORTIONS OF THE SUBSTRATE SURFACE BY ELECTROLESS PLATING, IN THE PRESENCE OF A CATALYST COMPRISES FIRST COVERING THE UNSELECTED PORTIONS OF THE SUBSTRATE SURFACE WITH A MASKING FILM THAT INCLUDES AN OXIDIZING AGENT. THE SUBSTRATE, INCLUDING THE MASKING FILM, IS THEN TREATED WITH A SENSITIZING SOLUTION AND HEATED TO CAUSE THE OXIDIZING AGENT TO OXIDIZE, AND DESENSITIZE, THE SENSITIZING SOLUTION THAT IS ADSORBED ON THE MASKING FILM, RENDERING THE MASKING FILM INCAPABLE OF ACCEPTING A CATALYST. THE SUB-
Inventors
- 👤 Nathan Feldstein
Bibliographic Details
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