Selective Chrome Plating On Chromium
Original Publication Date: 1988-Oct-01
Included in the Prior Art Database: 2005-Feb-16
Oxide on chrome must be removed to plate metal onto the chrome. The difficulty of plating on chrome caused by rapid oxide formation is avoided by a single operation to remove the oxide while simultaneously plating. A substrate with chrome thereon is submerged in a gold plating solution. The chrome is selectively irradiated with a laser, e.g., argon laser, sufficiently focused to ablate the surface oxide while simultaneously plating gold onto the irradiated surface. Multiple laser scans may be necessary to avoid degradation of the chrome and to plate gold to the desired thickness.