Rohm & Haas Electronic Materials LLC

Shipley Company LLC

Angelo B Chirafisi

Neil D Brown

Jitendra Singh Goela

Michael A Pickering

Mark Lefebvre

George A Federman

Gregory Lai

Jamie L Triba

Michael P Toben

Peter R Levey

An optical article and method of making the same are provided. The optical article has optical multi-aperture operation. The optical article has one or more electrically conductive and selectively passivated patterns.

Article having electrically conductive and selectively passivated patterns

Optical article

An electrolyte employed to selectively deposit a tin or tin alloy film on a composite substrate. A method for depositing the tin or tin alloy on the composite substrate also is described.

Electroplating composite substrates

Disclosed are electrolyte compositions for depositing tin or tin-alloys at various current densities. Also disclosed are methods of plating such tin or tin-alloys on substrates, such as the high speed tin plating of steel.

Tin electrolyte

Provided for is a solution for use in the electroplating of tin and tin alloys comprising a basis solution comprising an acid, optionally a salt thereof, the acid selected from the group consisting of fluoboric acid, an organic sulfonic acid, a mineral acid, or a combination thereof; divalent tin ions; and an antioxidant comprising a hydroxy benzene sulfonic acid or salt thereof, in an amount effective to prevent the oxidation of divalent tin ions. Also provided for is a method for electroplating comprising electroplating a substrate using an electroplating solution comprising a hydroxy benzene sulfonic acid or salt thereof in an amount effective to decrease the oxidation of tin ions.

Limiting the loss of tin through oxidation in tin or tin alloy electroplating bath solutions

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Howard Beach, NY, United States of America

Angelo B Chirafisi