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US 2016/0102403 A1Published application
Metallization inhibitors for plastisol coated plating tools
AssigneeRohm and Haas Electronic Materials LLC
InventorsKatharina Weitershaus, Andreas Scheybal, Wan Zhang-Beglinger
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Abstract
The plastisol coated plating tools are used to secure polymer containing substrates in electroless plating baths during electroless plating of the polymers. To prevent metallization of the plastisol coated plating tools during electroless metallization, compositions of sulfur compounds are applied to the plastisol. After metallization the plastisol coated plating tools may be re-used without the need to strip the unwanted metal from the tools.
Claims13
A method comprising:
- a) providing a plating tool comprising plastisol;
- b) applying a composition comprising a sulfur compound containing a sulfur atom in an oxidation state equal to −1 or −2 or a mixture of sulfur compounds having sulfur atoms with oxidation states of −1 and −2 to the plastisol;
- c) fastening a substrate comprising one or more polymers to the plating tool;
- d) etching the one or more polymers with a chromium (VI) free etch composition or a low chromic acid etch composition;
- e) applying a catalyst to the one or more polymers;
- and
- f) electroless plating a metal on the one or more polymers.
4 more elements
Dependencies are inferred from the claim text.