Metallizing transparent conductive paths
AssigneeStandard Elektrik Lorenz AG
InventorRolf Zondler
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Abstract
To metallize transparent conductive paths of indium tin oxide (ITO) on substrates of display devices, a solderable metal layer is applied by electroless deposition. If the metal layer is adjacent a liquid crystal display device, the display device may be manufactured and tested prior to the electroless deposition, with only an edge of the substrate being dipped into the deposition bath. Prior to the deposition of the solderable metal layer, the indium tin oxide surface may be reduced and an adhesion improving layer of may also be deposited by above the indium tin surface and below the solderable metal layer. Integrated circuits can then be soldered to the metallized conductive paths.
Claims9
A method for metallizing transparent conductive paths of indium tin oxide on of a substrate comprising the steps of
- (a) first reducing the surface of said conductive paths to indium tin in a first bath containing a reducing agent and
- (b) thereafter applying an outer layer of a first metal over the said conductive paths by electroless deposition using a second bath containing a salt of said first metal.
Dependencies are inferred from the claim text.