Roll-to-roll electroless plating system with low dissolved oxygen content

Inactive Publication Date: 2016-02-11
EASTMAN KODAK CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

This patent is about a method to reduce dissolved oxygen in a plating solution to improve its performance. The method involves adding an inert gas, which reduces the amount of dissolved oxygen, and minimizing the exposure of the plating solution to air, which further reduces dissolved oxygen. This method allows for optimal dissolved oxygen levels for different plating solutions.

Problems solved by technology

However, it has been found that such oxygen-rich plating solutions do not provide uniform metallization at high yield on features having line widths of 10 microns or less.
It has been found that a copper electroless plating solution made by Enthone is well-suited to provide high quality plating on features having minimum line widths of 10 microns or less in a low dissolved oxygen content tank plating system, but not in a commercially available roll-to-roll electroless plating system.

Method used

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  • Roll-to-roll electroless plating system with low dissolved oxygen content
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  • Roll-to-roll electroless plating system with low dissolved oxygen content

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Embodiment Construction

[0035]The present description will be directed in particular to elements forming part of, or cooperating more directly with, an apparatus in accordance with the present invention. It is to be understood that elements not specifically shown, labeled, or described can take various forms well known to those skilled in the art. In the following description and drawings, identical reference numerals have been used, where possible, to designate identical elements. It is to be understood that elements and components can be referred to in singular or plural form, as appropriate, without limiting the scope of the invention.

[0036]The invention is inclusive of combinations of the embodiments described herein. References to “a particular embodiment” and the like refer to features that are present in at least one embodiment of the invention. Separate references to “an embodiment” or “particular embodiments” or the like do not necessarily refer to the same embodiment or embodiments; however, such...

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Abstract

A roll-to-roll electroless plating system including a sump containing a first volume of a plating solution, and a pan containing a second volume of the plating solution, the second volume being less than the first volume. A web advance system advances a web of media though the plating solution in the pan, wherein a plating substance in the plating solution is plated onto predetermined locations on a surface of the web of media. A pan-replenishing pump moves plating solution from the sump to the pan through a pipe. A distribution system injects an inert gas into the plating solution to reduce the amount of dissolved oxygen.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS[0001]Reference is made to commonly-assigned, co-pending U.S. patent application Ser. No. ______ (Docket K001834), entitled “Method for roll-to-roll electroless plating with low dissolved oxygen content” by G. Wainwright et al.; and to commonly-assigned, co-pending U.S. patent application Ser. No. ______ (Docket K001837), entitled “Roll-to-roll electroless plating system with micro-bubble injector” by G. Wainwright et al., each of which is incorporated herein by reference.FIELD OF THE INVENTION[0002]This invention pertains to the field of roll-to-roll electroless plating, and more particularly to a system and method for providing low dissolved oxygen content in the plating solution.BACKGROUND OF THE INVENTION[0003]Electroless plating, also known as chemical or auto-catalytic plating, is a non-galvanic plating process that involves chemical reactions in an aqueous plating solution that occur without the use of external electrical power. Typicall...

Claims

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Application Information

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IPC IPC(8): C23C18/16C23C18/32C23C18/38C23C18/42
CPCC23C18/1675C23C18/38C23C18/1617C23C18/42C23C18/163C23C18/32C23C18/1608C23C18/1619C23C18/1628C23C18/1664C23C18/1682C23C18/1683
InventorWAINWRIGHT, GARY P.REUTER, SHAWN A.
OwnerEASTMAN KODAK CO